AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 24, 1995
                                                     REGISTRATION NO. 33-_____


                        SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C. 20549
                                    _________
                                     FORM S-3
                              REGISTRATION STATEMENT
                                      UNDER
                            THE SECURITIES ACT OF 1933
                                    _________
                             MALLINCKRODT GROUP INC.
              (Exact name of registrant as specified in its charter)
                                    _________
                      NEW YORK                     36-1263901
            (State or other jurisdiction        (I.R.S. EMPLOYER
                 of incorporation or           IDENTIFICATION NO.)
                    organization)
                                    _________
                              7733 FORSYTH BOULEVARD
                             ST. LOUIS, MO 63105-1820
                                  (314) 854-5200
               (Address, including zip code, and telephone number,
               including area code, of Principal Executive Offices)

                                 ROGER A. KELLER
                             MALLINCKRODT GROUP INC.
                              7733 FORSYTH BOULEVARD
                             ST. LOUIS, MO 63105-1820
                                  (314) 854-5200
            (Name, address, including zip code, and telephone number,
                    including area code, of agent for service)
                                    _________
                                    COPIES TO:
                      John M. Reiss          Michael A. Campbell
                      White & Case           Mayer, Brown & Platt
               1155 Avenue of the Americas  190 S. LaSalle Street
                 New York, New York 10036  Chicago, Illinois 60603
                     (212) 819-8200             (312) 782-0600
                                    _________
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: FROM
   TIME TO TIME AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT AS THE
   REGISTRANT SHALL DETERMINE.
                                    _________
        If the only securities being registered on this Form are being offered
   pursuant to dividend or interest reinvestment plans, please check the
   following box. ( )

        If any of the securities being registered on this Form are to be
   offered on a delayed or continuous basis pursuant to Rule 415 under the
   Securities Act of 1933, other than securities offered only in connection
   with dividend or interest reinvestment plans, check the following box. (X)
                                    _________
   
                                                     CALCULATION OF REGISTRATION FEE
                                                                                                       
                                                                               PROPOSED MAXIMUM  PROPOSED MAXIMUM      AMOUNT OF
                                                              AMOUNT BEING      OFFERING PRICE       AGGREGATE       REGISTRATION
       TITLE OF EACH CLASS OF SECURITIES TO BE REGISTERED      REGISTERED          PER UNIT       OFFERING PRICE          FEE




       DEBT SECURITIES . . . . . . . . . . . . . . . . . .  $250,000,000 (1)       100% (2)      $250,000,000 (1)       $86,208

     (1)     Or, if any Securities are issued at an original issue discount, such greater amount as shall result in an aggregate
             initial offering price of $250,000,000.
     (2)     Estimated solely for purpose of calculating the registration fee. 
     

        THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE
   OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE
   REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT
   THIS REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE
   WITH SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION
   STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING
   PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.

        PURSUANT TO RULE 429 UNDER THE SECURITIES ACT OF 1933, THE PROSPECTUS
   WHICH CONSTITUTES PART OF THIS REGISTRATION STATEMENT ALSO RELATES TO THE
   DEBT SECURITIES REGISTERED ON FORM S-3, REGISTRATION NO. 33-47081, OF THE
   REGISTRANT.

   [LOGO]

                                   $300,000,000

                             Mallinckrodt Group Inc.

                                 Debt Securities

                                    _________

        Mallinckrodt Group Inc. (the "Company") may from time to time offer up
   to $300,000,000 aggregate initial offering price of its debt securities
   (the "Debt Securities"), on terms to be determined at the time of sale, and
   as more fully described under "Description of the Securities." The
   accompanying Prospectus Supplement (the "Prospectus Supplement") sets forth
   the specific designation, the aggregate principal amount offered,
   authorized denominations, maturity, purchase price, rate (which may be
   fixed or variable) and time of payment of interest, any terms of redemption
   (including any sinking fund) and any other specific terms of the Debt
   Securities in respect of which this Prospectus and the Prospectus
   Supplement are being delivered (the "Offered Securities"), together with
   the terms of the offering and sale of the Offered Securities.

        The Company may sell Debt Securities to or through underwriters or
   dealers, directly to one or more purchasers, through agents or through a
   combination of the foregoing.  See "Plan of Distribution."  Unless
   otherwise set forth in the Prospectus Supplement, such underwriters will
   include either or both of Goldman, Sachs & Co. and J.P. Morgan Securities
   Inc., acting alone or as representatives of a group of underwriters. 
   Either or both of Goldman, Sachs & Co. and J.P. Morgan Securities Inc. may
   also act as agents. The accompanying Prospectus Supplement sets forth the
   names of such underwriters or agents, the principal amounts, if any, to be
   purchased by underwriters and the compensation, if any, of such
   underwriters or agents. 

                                    _________

          THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
      SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
      NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
       COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. 




            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                                    _________

   GOLDMAN, SACHS & CO.                              J.P. MORGAN SECURITIES
   INC.
                                    _________

                The date of this Prospectus is ____________, 1995.


                              AVAILABLE INFORMATION

        The Company is subject to the informational requirements of the
   Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
   accordance therewith files reports, proxy statements and other information
   with the Securities and Exchange Commission (the "Commission").  Such
   reports, proxy statements, information statements and other information
   filed by the Company can be inspected and copied at the public reference
   facilities maintained by the Commission, 450 Fifth Street, N.W.,
   Washington, D.C. 20549, and at the following Regional Offices of the
   Commission: New York Regional Office, Seven World Trade Center, New York,
   New York 10048; and Chicago Regional Office, 500 West Madison Street, Suite
   1400, Chicago, Illinois 60661.  Copies of such material can be obtained
   from the Public Reference Section of the Commission, 450 Fifth Street,
   N.W., Washington, D.C. 20549, at prescribed rates.  Such reports, proxy
   statements, information statements and other information filed by the
   Company can also be inspected at the offices of the New York Stock
   Exchange, Inc., 20 Broad Street, New York, New York 10005; the Chicago
   Stock Exchange, Inc., 440 South LaSalle Street, Chicago, Illinois 60605;
   and the Pacific Stock Exchange, Incorporated, 618 South Spring Street, Los
   Angeles, California 90014 and 301 Pine Street, San Francisco, California
   94104. 

        The Company's Common Stock, $1 par value, is listed on the three
   aforementioned stock exchanges. 

        This Prospectus constitutes a part of a Registration Statement filed
   by the Company with the Commission under the Securities Act of 1933 (the
   "Securities Act"). This Prospectus omits certain of the information
   contained in the Registration Statement, and reference is hereby made to
   the Registration Statement and to the exhibits thereto for further
   information with respect to the Company and the Debt Securities. Any
   statements contained herein concerning the provisions of any document are
   not necessarily complete, and, in each instance, reference is made to the
   copy of such document filed as an exhibit to the Registration Statement or
   otherwise filed with the Commission. Each such statement is qualified in
   its entirety by such reference. 

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

        The following documents filed by the Company with the Commission are
   incorporated in this Prospectus by reference: 

        (1)  The Company's Annual Report on Form 10-K for the fiscal year
   ended June 30, 1994. 

        (2)  The Company's Quarterly Reports on Form 10-Q for the quarters
   ended September 30 and December 31, 1994. 




        (3)  The Company's current reports on Form 8-K dated October 19, 1994,
   October 28, 1994, November 3, 1994 and January 4, 1995.

        All documents filed by the Company pursuant to Sections 13(a), 13(c),
   14 or 15(d) of the Exchange Act after the date hereof and prior to the
   termination of the offering of the Debt Securities shall be deemed to be
   incorporated by reference herein and to be a part hereof from  the date of
   filing such documents.  Any statement contained in a document incorporated
   or deemed to be incorporated by reference herein shall be deemed to be
   modified or superseded for purposes of this Prospectus to the extent that a
   statement contained herein or in any other subsequently filed document
   which also is or is deemed to be incorporated by reference herein modifies
   or supersedes such statement.  Any such statement so modified or superseded
   shall not be deemed, except as so modified or superseded, to constitute a
   part of this Prospectus. 

        The Company hereby undertakes to provide without charge to each person
   to whom a Prospectus is delivered a copy of any or all of the information
   that has been incorporated by reference herein (other than exhibits to such
   documents) upon written or oral request.  Requests for such copies should
   be directed to the Corporate Secretary, Mallinckrodt Group Inc., 7733
   Forsyth Boulevard, St. Louis, MO 63105-1820, telephone number (314) 854-
   5200.

                                   THE COMPANY

        The Company (formerly IMCERA Group Inc.), a New York corporation,
   provides human and animal health care products and specialty chemicals
   worldwide by means of its three technology-based operating subsidiaries:  

        Mallinckrodt Chemical, Inc.  Mallinckrodt Chemical is a producer of
   high-quality specialty pharmaceutical chemicals and highly selected
   specialty industrial chemicals and catalysts.  Mallinckrodt Chemical is
   also a joint venture partner with Hercules Incorporated in a worldwide
   flavors business, Tastemaker, which develops and sells products for the
   beverage, sweet goods, savory and confection markets.

        Mallinckrodt Medical, Inc.  Mallinckrodt Medical provides
   technologically advanced products and services to five medical specialties: 
   radiology; cardiology; nuclear medicine; anesthesiology; and critical care.

        Mallinckrodt Veterinary, Inc.  Mallinckrodt Veterinary (formerly
   Pitman-Moore, Inc.) is one of the world's largest branded animal health and
   nutrition companies with approximately 1,000 products sold in more than 100
   countries.

        The Company was founded in 1909 and was primarily a producer and
   manufacturer of fertilizers and other commodity chemicals. The Company
   undertook a major restructuring of its businesses beginning with the
   February 1986 acquisition of the Mallinckrodt Medical and Mallinckrodt
   Chemical businesses.  In October 1986, the Company sold its industrial
   products and oil and gas divisions. Beginning in February 1988, the Company
   began reducing its interest in its fertilizer business, which is now an
   independent publicly-held company named IMC Global Inc. ("IMC Global")
   (formerly IMC Fertilizer Group, Inc.), and the Company completed the
   disposition of its remaining equity interest in IMC Global on July 2, 1991. 
   Since 1986, the Company  has expanded its animal health business through a
   series of acquisitions, including the acquisition of the Pitman-Moore
   business in 1987 and the acquisition of Coopers Animal Health Group in
   1989.




        In June 1993, the Company announced the details of a restructuring
   program which resulted in a charge of $242 million after taxes, most of
   which was for actions taken at Mallinckrodt Veterinary.  In June 1994, the
   Company announced the details of a further restructuring program which
   resulted in a charge of $59 million after taxes, most of which relates to
   Mallinckrodt Medical.  

        In March 1994, the Company changed its name from IMCERA Group Inc. to
   Mallinckrodt Group Inc. and moved its headquarters from Northbrook,
   Illinois to St. Louis, Missouri.  The Company's corporate headquarters is
   located at 7733 Forsyth Boulevard, St. Louis, MO 63105-1820, and its
   telephone number is: (314) 854-5200.


                                 USE OF PROCEEDS

        The net proceeds from the sale of the Offered Securities will be added
   to the general funds of the Company and will be used for general corporate
   purposes, except as otherwise noted in any Prospectus Supplement. Pending
   such a use, some portion of such funds may be invested in short-term
   marketable securities. 


                        RATIO OF EARNINGS TO FIXED CHARGES
   
                                                               SIX MONTHS
                                                                  ENDED
                                                              DECEMBER 31,                 YEARS ENDED JUNE 30,
                                                                                            
                                                              1994  1993        1994    1993    1992    1991     1990
                Ratio of earnings to fixed charges  . . . . . 4.9   5.3         4.0     (1)     4.9     4.0      2.6



     ___________

     (1)    Earnings were inadequate to cover fixed charges for the year ended June 30, 1993.  The coverage deficiency was
     approximately $140 million.
     

          The ratio of earnings to fixed charges is based on earnings from
   continuing operations and has been computed on a total enterprise basis. 
   Earnings represent income from continuing operations before income taxes
   and fixed charges, net of capitalized interest.  Fixed charges consist of
   interest expense before reduction for capitalized interest, one-third of
   rental expense (net of rental income from subleased properties), which is
   considered to be representative of the interest factors in the leases, and
   the Company's proportionate share of interest expense of 50%-owned entities
   accounted for by the equity method before reduction for capitalized
   interest, and amortization of debt discount and expenses. 

                          DESCRIPTION OF THE SECURITIES

          The following description of the Debt Securities sets forth certain
   general terms and provisions of the Offered Securities to which any
   Prospectus Supplement may relate.  The Debt Securities are to be issued
   under an Indenture dated as of March 15, 1985, as amended and restated as
   of February 15, 1995, and as may be further amended and supplemented (the
   "Indenture"), between the Company and First Trust of New York, National
   Association, as trustee (the "Trustee"), a copy of which is filed as an
   exhibit to the Registration Statement.  The particular terms of the Offered




   Securities and the extent, if any, to which such general provisions may
   apply to the Offered Securities will be described in the Prospectus
   Supplement relating to such Offered Securities.

          The following summaries of certain provisions of the Indenture do
   not purport to be complete and are subject to, and are qualified in their
   entirety by reference to, all the provisions of the Indenture, including
   the definition therein of certain terms.  Wherever particular articles,
   sections or defined terms of the Indenture are referred to, it is intended
   that such articles, sections or defined terms shall be incorporated herein
   by reference. 

   GENERAL

          The Indenture does not limit the aggregate principal amount of
   debentures, notes or other evidences of indebtedness which may be issued
   thereunder (such debentures, notes or other evidences of indebtedness
   issued under the Indenture being herein referred to as the "Securities"). 
   The Indenture provides that Securities may be issued from time to time in
   one or more series.  The Securities will be unsecured obligations ranking
   equally with each other and with other unsecured and unsubordinated
   indebtedness of the Company. 

          The Prospectus Supplement relating to the particular Securities
   offered thereby will describe the following terms of the Offered
   Securities: (1) the title of the Offered Securities; (2) any limit on the
   aggregate principal amount of the Offered Securities; (3) the record date
   for determining the persons to whom any interest on any Offered Securities
   of the series will be payable; (4) the date or dates on which the principal
   of the Offered Securities will be payable; (5) the rate or rates (or
   formula for determining such rates) at which the Offered Securities of the
   series will bear interest, if any, the date or dates from which such
   interest will accrue, the interest payment dates on which such interest
   will be payable and the record dates for the determination of Holders to
   whom interest is payable; (6) whether the interest rate or interest rate
   formula for Offered Securities of the series may be reset at the option of
   the Company or otherwise, and the date or dates on which such interest rate
   or interest rate formula may be reset; (7) the place or places where the
   principal and interest on the Offered Securities of the series will be
   payable and the place or places where the Offered Securities may be
   surrendered for registration or transfer or exchange; (8) the date, if any,
   after which the Offered Securities may, pursuant to any optional or
   mandatory redemption provisions, be redeemed, in whole or in part, and the
   other detailed terms and provisions of any such optional or mandatory
   redemption provisions; (9) any mandatory or optional sinking fund or
   analogous provisions; (10) the currency or the composite currency in which
   the Offered Securities are denominated (the "Specified Currency"); (11) the
   currency or currencies of payment of principal of and any premium and
   interest on the Offered Securities if other than the Specified Currency;
   (12) any index used to determine the amount of payments of principal of and
   any premium and interest on the Offered Securities; (13) any additional
   covenants applicable to the Offered Securities; and (14) any other terms of
   the Offered Securities (which terms will not be inconsistent with the
   provisions of the Indenture). Unless otherwise indicated in the Prospectus
   Supplement,    principal of (and premium, if any) and interest, if any, on
   the Offered Securities will be payable, and transfers of the Offered
   Securities will be registrable, at the Corporate Trust Office of the
   Trustee (currently located at 100 Wall Street, Suite 1600, New York, New
   York 10005), provided that at the option of the Company payment of interest
   may be made by check mailed to the address of the person entitled thereto




   as it appears in the Security Register. (Sections 3.01, 3.03, 3.06 and
   5.02) 

          Unless otherwise indicated in the Prospectus Supplement, the Offered
   Securities will be issued only in fully registered form without coupons in
   denominations of 1,000 units of the Specified Currency or any integral
   multiple thereof. (Section 3.02) No service charge will be made for any
   registration of transfer or exchange of Offered Securities, but the Company
   may require payment of a sum sufficient to cover any tax or other
   governmental charge payable in connection therewith. (Section 3.06) 

          If any of the Offered Securities are denominated in a Specified
   Currency other than U.S. dollars or if the principal, premium and/or
   interest with respect to any series of Offered Securities is payable in a
   Specified Currency other than U.S. Dollars, the restrictions, elections,
   general tax considerations, specific terms and other information with
   respect to such issue of Offered Securities related to such Specified
   Currency will be set forth in the applicable Prospectus Supplement. 

          The Company shall not be required to (i) issue, register the
   transfer of, or exchange Securities of any series during the period from 15
   days prior to the mailing of notice of redemption of Securities of that
   series to the date of such mailing or (ii) register the transfer of or
   exchange any Security so selected for redemption, except the unredeemed
   portion of any Security being redeemed in part. (Section 3.06) 

          Securities may be issued under the Indenture as Original Issue
   Discount Securities to be sold at a substantial discount below their
   principal amount.  Federal income tax and other considerations applicable
   to any Security that is issued with "original issue discount" for Federal
   income tax purposes (which may include an Original Issue Discount Security)
   will be described in the Prospectus Supplement relating thereto. 

          The Prospectus Supplement may indicate terms for redemption at the
   option of a Holder. Unless otherwise indicated in the Prospectus
   Supplement, the covenants contained in the Indenture and the Offered
   Securities would not provide for redemption at the option of a Holder nor
   afford Holders protection in the event of a highly leveraged or other
   transaction that may adversely affect Holders. 

   CERTAIN DEFINITIONS

          The following terms are defined substantially as follows in
   Section 1.01 of the Indenture and are used herein as so defined. 

          Consolidated Net Tangible Assets.  (a) The total amount of assets
   (less applicable reserves and other properly deductible items) after
   deducting therefrom (i) all liabilities and liability items, except for
   indebtedness payable by its terms more than one year from the date of
   incurrence thereof (or renewable or extendible at the option of the obligor
   for a period ending more than one year after such date of incurrence),
   capitalized rent, capital stock and surplus, surplus reserves and deferred
   income taxes and credits and other non-current liabilities, and (ii) all
   goodwill, trade names, trademarks, patents, unamortized debt discount,
   unamortized expense incurred in the issuance of debt, and other like
   intangibles (except prepaid royalties), which, in each case, under
   generally accepted accounting principles would be included on a
   consolidated balance sheet of the Company and its Restricted Subsidiaries,
   less (b) loans, advances, equity investments and contingent liabilities of
   every nature (other than accounts receivable arising from the sale of
   merchandise in the ordinary course of business) at the time outstanding




   which were made or incurred by the Company and its Restricted Subsidiaries
   to, in or for Unrestricted Subsidiaries or to, in or for corporations while
   they were Unrestricted Subsidiaries and which at the time of computation
   are not Subsidiaries. 

          Principal Facility.  Any manufacturing plant, warehouse, office
   building or parcel of real property (including fixtures but excluding
   leases and other contract rights which might otherwise be deemed real
   property) owned by the Company or any Restricted Subsidiary, provided each
   such plant, warehouse, office building or parcel of real property has a
   gross book value (without deduction for any depreciation reserves) of in
   excess of two percent of the Consolidated Net Tangible Assets of the
   Company and the Restricted Subsidiaries, other than any such plant,
   warehouse, office building or parcel of real property or portion thereof
   which, in the opinion of the Board of Directors of the Company, is not of
   material importance to the business conducted by the Company and its
   Subsidiaries taken as a whole. 

          Restricted Subsidiary.  Any corporation in which the Company
   directly or indirectly owns voting securities entitling it to elect a
   majority of the directors and (a) which (i) existed as such on the date of
   the Indenture or is the successor, directly or indirectly, to, or owns,
   directly or indirectly, any equity interest in, a corporation which so
   existed, (ii) has its principal place of business and the principal
   location of its assets in the United States (including its territories and
   possessions) or Canada or both, (iii) has as its principal business a
   business other than the financing of the acquisition or disposition of
   real, personal or intangible property or the owning, leasing, dealing in or
   developing of real property for residential or office building purposes,
   and (iv) does not have assets substantially all of which consist of the
   securities of one or more corporations which are not Restricted
   Subsidiaries, or (b) which, pursuant to the terms of the Indenture, is
   designated a Restricted Subsidiary by the Company after the date of the
   Indenture; provided, however, the Company may not designate a Subsidiary to
   be a Restricted Subsidiary if the Company would thereby breach any covenant
   or agreement contained in the Indenture (on the assumption that any
   transaction to which such Subsidiary was a party at the time of such
   designation and which would have given rise to Secured Debt or constituted
   a Sale and Leaseback Transaction at the time it was entered into had such
   Subsidiary then been a Restricted Subsidiary was entered into at the time
   of such designation).  None of the existing principal operating
   subsidiaries of the Company are Restricted Subsidiaries under the
   Indenture.

          Sale and Leaseback Transaction.  Any sale or transfer made by the
   Company or one or more Restricted Subsidiaries (except a sale or transfer
   made to the Company or one or more Restricted Subsidiaries) of any
   Principal Facility which (in the case of a Principal Facility which is a
   manufacturing plant, warehouse, office building or developed mining
   property) has been in operation, use or commercial production (exclusive of
   test and start-up periods) by the Company or any Restricted Subsidiary for
   more than 120 days prior to such sale or transfer, or which (in the case of
   a Principal Facility which is a parcel of real property other than a
   manufacturing plant, warehouse, office building or developed mining
   property) has been owned by the Company or any Restricted Subsidiary for
   more than 120 days prior to such sale or transfer, if such sale or transfer
   is made with the intention of leasing, or as part of an arrangement
   involving the lease, of such Principal Facility to the Company or a
   Restricted Subsidiary (except a lease for a period not exceeding 36 months,
   made with the intention that the use of the leased Principal Facility by
   the Company or such Restricted Subsidiary will be discontinued on or before




   the expiration of such period). Any Secured Debt otherwise permitted
   pursuant to the Indenture will not be deemed to create or be defined to be
   a Sale and Leaseback Transaction. 

          Secured Debt.  Any indebtedness for money borrowed by, or evidenced
   by a note or other similar instrument of, the Company or a Restricted
   Subsidiary, and any other indebtedness of the Company or a Restricted
   Subsidiary on which by the terms of such indebtedness interest is paid or
   payable, including obligations evidenced or secured by leases, installment
   sales agreements or other instruments in connection with industrial
   development bonds as defined in Section 103(c)(2) of the Internal Revenue
   Code of 1954 (other than indebtedness owed by a Restricted Subsidiary to
   the Company, by a Restricted Subsidiary to another Restricted Subsidiary or
   by the Company to a Restricted Subsidiary), which in any such case is
   secured by (a) a Security Interest in any Principal Facility, or (b) a
   Security Interest in any shares of stock owned directly or indirectly by
   the Company in a Restricted Subsidiary or in indebtedness for money
   borrowed by a Restricted Subsidiary from the Company or another Restricted
   Subsidiary.  The securing in the foregoing manner of any previously
   unsecured debt shall be deemed to be the creation of Secured Debt at the
   time such security is given.  The amount of Secured Debt at any time
   outstanding shall be the maximum aggregate amount then owing thereon by the
   Company and its Restricted Subsidiaries. 

          Security Interest.  Any mortgage, pledge, lien, encumbrance or other
   security interest which secures payment or performance of an obligation. 

          Senior Funded Debt.  Any obligation of the Company or any Restricted
   Subsidiary which, as of the date of its creation, was payable by its terms
   more than one year from the date of incurrence thereof (or renewable or
   extendible at the option of the obligor for a period ending more than one
   year after such date of incurrence), which under generally accepted
   accounting principles should be shown as a liability on a consolidated
   balance sheet of the Company and its Restricted Subsidiaries, and which, in
   the case of such an obligation of the Company, is not subordinate and
   junior in right of payment to the prior payment of the Debt Securities. 

   CERTAIN COVENANTS OF THE COMPANY

          Restriction on Creation of Secured Debt.  The Indenture provides
   that so long as the Securities of any series are outstanding, the Company
   will not, and will not cause or permit a Restricted Subsidiary to, create,
   incur, assume or guarantee any Secured Debt or create any Security Interest
   securing any indebtedness existing on the date of the Indenture which would
   constitute Secured Debt if it were secured by a Security Interest in a
   Principal Facility unless the Securities will be secured equally and
   ratably (subject to applicable priorities of payment) by the Security
   Interest securing such Secured Debt or indebtedness, except that the
   Company and its Restricted Subsidiaries may incur certain Secured Debt
   without so securing the Securities. Among such permitted Secured Debt is
   indebtedness secured by (i) certain Security Interests to secure payment of
   the cost of acquisition, construction, development or improvement of
   property, (ii) Security Interests on property at the time of acquisition
   assumed by the Company or a Restricted Subsidiary, or on the property or on
   the outstanding shares or indebtedness of a corporation or firm at the time
   it becomes a Restricted Subsidiary or is merged into or consolidated with
   the Company or a Restricted Subsidiary or the Company or a Restricted
   Subsidiary acquires the properties of such corporation or firm as an
   entirety or substantially as an entirety, (iii) Security Interests arising
   from conditional sales agreements or title retention agreements with
   respect to property acquired by the Company or any Restricted Subsidiary,




   (iv) certain Security Interests to secure progress or advance payments, (v)
   Security Interests securing indebtedness of a Restricted Subsidiary owing
   to the Company or to another Restricted Subsidiary, (vi) mechanics' and
   other statutory liens arising in the ordinary course of business (including
   construction of facilities) in respect of obligations which are not due or
   which are being contested in good faith, (vii) liens for taxes, assessments
   or governmental charges not yet due or for taxes, assessments or
   governmental charges which are being contested in good faith,
   (viii) Security Interests (including judgment liens) arising in connection
   with legal proceedings so long as such proceedings are being contested in
   good faith and, in case of judgment liens, execution thereon is stayed,
   (ix) certain landlords' liens on fixtures, (x) Security Interests to secure
   partial, progress, advance or other payments or indebtedness incurred for
   the purpose of financing construction on or improvement of property subject
   to such Security Interests and (xi) certain Security Interests in favor, or
   made at the request, of governmental bodies.  Additionally, such permitted
   Secured Debt includes (with certain limitations) any extension, renewal or
   refunding, in whole or in part, of any Secured Debt permitted at the time
   of the original incurrence thereof.  In addition to the foregoing, the
   Company and its Restricted Subsidiaries may have Secured Debt, without
   equally and ratably securing the Securities, if the sum of (a) the amount
   of Secured Debt entered into after the date of the Indenture and otherwise
   prohibited by the Indenture plus (b) the aggregate value of Sale and
   Leaseback Transactions entered into after the date of the Indenture and
   otherwise prohibited by the Indenture does not exceed ten percent of
   Consolidated Net Tangible Assets. (Section 5.05) 

          Restriction on Sale and Leaseback Transactions.  The Indenture
   provides that so long as the Securities of any series are outstanding, the
   Company will not, and will not permit any Restricted Subsidiary to, enter
   into any Sale and Leaseback Transaction unless (a) the Company or such
   Restricted Subsidiary would be entitled to incur Secured Debt permitted by
   the Indenture only by reason of the provision described in the last
   sentence of the preceding paragraph equal in amount to the net proceeds of
   the property sold or transferred or to be sold or transferred pursuant to
   such Sale and Leaseback Transaction and secured by a Security Interest on
   the property to be leased without equally and ratably securing the
   Securities, or (b) the Company or a Restricted Subsidiary shall apply
   within one year after the effective date of such Sale and Leaseback
   Transaction, or shall have committed within one year after the effective
   date of such Sale and Leaseback Transaction to apply, an amount equal to
   such net proceeds (x) to the acquisition, construction, development or
   improvement of properties, facilities, or equipment used for operating
   purposes which are, or upon such acquisition, construction, development, or
   improvement will be, a Principal Facility or Facilities or a part thereof
   or (y) to the redemption of Securities or (z) to the repayment of Senior
   Funded Debt of the Company or of any Restricted Subsidiary (other than
   Senior Funded Debt owed to any Restricted Subsidiary), or in part to such
   acquisition, construction, development or improvement and in part to such
   redemption and/or repayment.  In lieu of applying an amount equal to such
   net proceeds to such redemption the Company may, within one year after such
   sale or transfer, deliver to the Trustee Securities (other than Securities
   made the basis of a reduction in a mandatory sinking fund payment) for
   cancellation and thereby reduce the amount to be applied to the redemption
   of Securities by an amount equivalent to the aggregate principal amount of
   the Securities so delivered. (Section 5.06) 

          Restrictions on Transfer of Principal Facility to Certain
   Subsidiaries.  The Indenture provides that, so long as the Securities of
   any series are outstanding, the Company will not, and will not cause or
   permit any Restricted Subsidiary to, transfer any Principal Facility to any




   Subsidiary which was not a Restricted Subsidiary at the time of such
   transfer unless it shall apply within one year of the effective date of
   such transaction, or shall have committed within one year of such effective
   date to apply, an amount equal to the fair value of such Principal Facility
   at the time of such transfer (i) to the acquisition, construction,
   development or improvement of properties, facilities or equipment which
   are, or upon such acquisition, construction, development or improvement
   will be, a Principal Facility or Facilities or a part thereof or (ii) to
   the redemption of Securities or (iii) to the repayment of Senior Funded
   Debt of the Company or any Restricted Subsidiary (other than Senior Funded
   Debt owed to any Restricted Subsidiary), or in part to such acquisition,
   construction, development or improvement and in part to such redemption
   and/or repayment. In lieu of applying all or any part of such amount to
   such redemption the Company may, within one year of such transfer, deliver
   to the Trustee Securities of any series (other than Securities made the
   basis of a reduction in a mandatory sinking fund payment) for cancellation
   and thereby reduce the amount to be applied to the redemption of Securities
   by an amount equivalent to the aggregate principal amount of the Securities
   so delivered. (Section 5.07)

   MERGER

          The Indenture provides that the Company may consolidate with, or
   sell or convey all or substantially all of its assets to, or merge into any
   other corporation, provided that in any such case, (i) the successor
   corporation shall be a corporation organized and existing under the laws of
   the United States of America or a State thereof and such corporation shall
   expressly assume the due and punctual payment of the principal of (and
   premium, if any) and interest on all the Securities, according to their
   tenor, and the due and punctual performance and observance of all the
   covenants and conditions of the Indenture to be performed by the Company by
   supplemental indenture satisfactory to the Trustee, executed and delivered
   to the Trustee by such corporation; and (ii) immediately after giving
   effect to such transaction, no default shall have occurred and be
   continuing.  Notwithstanding the foregoing, if, upon any such consolidation
   or merger of the Company with or into any other corporation, or upon any
   sale or conveyance of the property of the Company as an entirety or
   substantially as an entirety to any other corporation, or upon any
   acquisition by the Company by purchase or otherwise of all or any part of
   the properties of another corporation, any Principal Facility would
   thereupon become subject to any Security Interest securing indebtedness not
   permitted by the Indenture to be Secured Debt, the Company, prior to such
   consolidation, merger, sale, conveyance or acquisition, will secure the
   Securities outstanding, equally and ratably (subject to applicable
   priorities of payment) with the debt secured by such Security Interest.
   (Article Twelve) 

   MODIFICATION OF THE INDENTURE

          With the consent of the Holders of more than 50% in aggregate
   principal amount of any series of Securities then outstanding, waivers,
   modifications and alterations of the terms of the Indenture may be made
   which affect the rights of the Holders of such series of Securities, except
   that no such modification or alteration may be made which will (a) extend
   the time of payment of the principal at maturity of, or the interest on,
   any such series of Securities, or reduce principal or premium or the rate
   of interest, without the consent of the Holder thereof, or (b) without the
   consent of all of the Holders of any series of Securities then outstanding,
   reduce the percentage of Securities of any such series, the Holders of
   which are required to consent (i) to any such supplemental Indenture,
   (ii) to rescind and annul a declaration that the Securities of any series




   are due and payable as a result of the occurrence of an Event of Default,
   (iii) to waive any past default under the Indenture and its consequences
   and (iv) to waive compliance with certain other provisions contained in the
   Indenture. (Sections 5.09 and 11.02) In addition, as indicated under
   "Events of Default" below, Holders of a majority in aggregate principal
   amount of the Securities of any series then outstanding may waive past
   defaults in certain circumstances and may direct the Trustee in enforcement
   of remedies. The Company and the Trustee may, without the consent of any
   Holders, modify and supplement the Indenture (i) to evidence the succession
   of another corporation to the Company under the Indenture; (ii) to evidence
   and provide for the replacement of the Trustee; (iii) with the Company's
   concurrence, to add to the covenants of the Company for the benefit of the
   Holders; (iv) to modify the Indenture to permit the qualification of any
   supplemental indenture under the Trust Indenture Act of 1939 (the "Trust
   Indenture Act"); and for certain other purposes. (Section 11.01) 

   DEFEASANCE, SATISFACTION AND DISCHARGE PRIOR TO MATURITY OR REDEMPTION

          Defeasance of any Series.  If the Company shall deposit with the
   Trustee, in trust, at or before maturity or redemption, lawful money or
   direct obligations of the United States of America or obligations the
   principal of and interest on which are guaranteed by the United States of
   America in such amounts and maturing at such times that the proceeds of
   such obligations to be received upon the respective maturities and interest
   payment dates of such obligations will provide funds sufficient, in the
   opinion of a nationally recognized firm of independent public accountants,
   to pay when due the principal (and premium, if any) and interest to
   maturity or to the redemption date, as the case may be, with respect to any
   series of Outstanding Securities, then the Company may cease to comply with
   the terms of the Indenture, including the restrictive covenants described
   above and the Events of Default described in clauses (d) and (e) under
   "Events of Default" below, except for (1) the Company's obligation to duly
   and punctually pay the principal of (and premium, if any) and interest on
   such series of Securities if the Securities are not paid from the money or
   securities held by the Trustee, (2) the Events of Default described in
   clauses (a), (b), (c), (f) and (g) under "Events of Default" below, and
   (3) certain other provisions of the Indenture including, among others,
   those relating to registration, transfer and exchange, lost or stolen
   securities, maintenance of place of payment and, to the extent applicable
   to such series, the redemption and sinking fund provisions of the
   Indenture.  Defeasance of Securities of any series is subject to the
   satisfaction of certain specified conditions, including, among others,
   (i) the absence of an Event of Default at the date of the deposit, (ii) the
   perfection of the Holders' security interest in such deposit, and (iii) the
   absence of any conflicting interest of the Trustee under the Trust
   Indenture Act. (Section 13.02) 

          Satisfaction and Discharge of any Series.   Upon the deposit of
   money or securities contemplated above and the satisfaction of certain
   conditions, the Company may also cease to comply with its obligation duly
   and punctually to pay the principal of (and premium, if any) and interest
   on a particular series of Securities, or with any Events of Default with
   respect thereto, and thereafter the Holders of such series of Securities
   shall be entitled only to payment out of the money or securities deposited
   with the Trustee.  Such conditions include, among others, except in certain
   limited circumstances involving a deposit made within one year of maturity
   or redemption, (i) the absence of an Event of Default at the date of
   deposit or on the 91st day thereafter, (ii) the delivery to the Trustee by
   the Company of an opinion of nationally recognized tax counsel, or receipt
   by the Company from, or publication of a ruling by the United States
   Internal Revenue Service, to the effect that Holders of the Securities of




   such series will not recognize income, gain or loss for Federal income tax
   purposes as a result of such deposit and discharge and will be subject to
   Federal income tax on the same amounts and in the same manner and at the
   same times as would have been the case if such deposit and discharge had
   not occurred, and (iii) that such satisfaction and discharge will not
   result in the delisting of the Securities of that series from any
   nationally recognized exchange on which they are listed. (Section 13.01) 

          Federal Income Tax Consequences.  Under current Federal income tax
   law, the deposit and defeasance described above under "Defeasance of any
   Series" will not result in a taxable event to any Holder of Securities or
   otherwise affect the Federal income tax consequences of an investment in
   the Securities of any series. 

          A deposit and discharge described above under "Satisfaction and
   Discharge of any Series" may be treated as a taxable exchange of such
   Securities for beneficial interests in the trust consisting of the
   deposited money or securities.  In that event, a Holder of Securities may
   be required to recognize gain or loss equal to the difference between the
   Holder's adjusted basis for the Securities and the amount realized by such
   Holder with respect to such exchange (which generally will be the fair
   market value of the beneficial interest in such trust). Thereafter, such
   Holder may be required to include in income a share of the income, gain and
   loss of the trust.  As described above, it is generally a condition to such
   a deposit and discharge to obtain an opinion of tax counsel, or receipt by
   the Company from, or publication of a ruling by the United States Internal
   Revenue Service, to the effect that such deposit and discharge will not
   alter the Holders' tax consequences that would have been applicable in the
   absence of the deposit and discharge.  Purchasers of the Securities should
   consult their own advisors with respect to the tax consequences to them of
   such deposit and discharge, including the applicability and effect of tax
   laws other than Federal income tax law. 

   EVENTS OF DEFAULT

          As to any series of Securities, an Event of Default is defined in
   the Indenture as being: (a) default for 30 days in payment of any interest
   on the Securities of such series; (b) failure to pay principal or premium
   with respect to the Securities of such series, if any, when due;
   (c) failure in the deposit of any sinking fund installment with respect to
   any series of Securities when due; (d) failure to observe or perform any
   other covenant in the Indenture or Securities of any series (other than a
   covenant or warranty, a default in whose performance or whose breach is
   specifically dealt with in the section of the Indenture governing Events of
   Default), if such failure continues for 60 days after written notice by the
   Trustee or the Holders of at least 25% in aggregate principal amount of the
   Outstanding Securities of such series; (e) uncured or unwaived failure to
   pay principal of or interest on any other obligation for borrowed money of
   the Company (including default under any other series of Securities and
   including default by the Company on any guaranty of an obligation for
   borrowed money of a Restricted Subsidiary) beyond any period of grace with
   respect thereto if (i) the aggregate principal amount of any such
   obligation is in excess of $10,000,000 and (ii) the default in such payment
   is not being contested by the Company in good faith and by appropriate
   proceedings; (f) certain events of bankruptcy, insolvency, receivership or
   reorganization; or (g) any other Event of Default provided with respect to
   Securities of that series. (Section 7.01) The Trustee or the Holders of 25%
   in aggregate principal amount of the outstanding Securities of any series
   may declare the Securities of such series immediately due and payable upon
   the occurrence of any Event of Default (after expiration of any applicable
   grace period); in certain cases, the Holders of a majority in principal




   amount of the Outstanding Securities of any series may waive any past
   default and its consequences, except a default in the payment of principal,
   premium, if any, or interest (including sinking fund payments). (Sections
   7.01 and 7.07)

          The Indenture provides that the Trustee shall, within 90 days after
   the occurrence of a default with respect to any such series for which there
   are Securities outstanding which is continuing, give to the Holders of such
   Securities notice of all uncured defaults known to it (the term default to
   include the events specified above without grace periods); provided that,
   except in the case of default in the payment of principal (or premium, if
   any) or interest on any of the Securities of any series or the payment of
   any sinking fund installment on the Securities of any series, the Trustee
   shall be protected in withholding such notice if it in good faith
   determines that the withholding of notice is in the interest of the
   Securityholders. (Section 7.08) 

          Subject to the provisions of the Indenture relating to the duties of
   the Trustee in case an Event of Default with respect to any series of such
   Securities shall occur and be continuing, the Indenture provides that the
   Trustee shall be under no obligation to exercise any of its rights or
   powers under the Indenture at the request, order or direction of any of the
   Holders of Securities outstanding of any series unless such Holders shall
   have offered to the Trustee reasonable indemnity. (Sections 8.01 and 8.02)
   The right of a Holder to institute a proceeding with respect to the
   Indenture is subject to certain conditions precedent including notice and
   indemnity to the Trustee, but the Holder has a right to receipt of
   principal, premium, if any, and interest (subject to certain limitations
   with respect to defaulted interest) on their due dates or to institute suit
   for the enforcement thereof. (Section 7.04) 

          So long as the Securities of any series remain outstanding the
   Company will be required to furnish annually to the Trustee an Officers'
   Certificate stating whether, to the best of the knowledge of the signers,
   the Company is in default under any of the provisions of the Indenture, and
   specifying all such defaults, and the nature thereof, of which they have
   knowledge. (Section 5.08) The Company will also be required to furnish to
   the Trustee copies of certain reports filed by the Company with the
   Commission. (Section 6.03) 

          The Holders of a majority in principal amount of the Securities
   outstanding of such series will have the right to direct the time, method
   and place for conducting any proceeding for any remedy available to the
   Trustee, or exercising any power or trust conferred on the Trustee,
   provided that such direction shall be in accordance with law and the
   provisions of the Indenture. (Section 7.07) The Trustee will be under no
   obligation to act in accordance with such direction unless such Holders
   shall have offered the Trustee reasonable security or indemnity against
   costs, expenses and liabilities which may be incurred thereby.
   (Section 8.02) 

   INFORMATION CONCERNING THE TRUSTEE

          First Trust of New York, National Association, Trustee under the
   Indenture, is also the trustee for the Company's 9.875% Sinking Fund
   Debentures due March 15, 2011, the Company's 6% Notes due October 15, 2003
   and the Company's 7% Debentures due December 15, 2013, all of which have
   been issued under the Indenture and are unsecured obligations of the
   Company ranking equally with the Debt Securities.

                               PLAN OF DISTRIBUTION




          The Company may sell Debt Securities to or through underwriters or
   dealers, directly to one or more purchasers, through agents or through a
   combination of the foregoing.  Unless otherwise set forth in the Prospectus
   Supplement, such underwriters will include either or both of Goldman, Sachs
   & Co. and J.P. Morgan Securities Inc., acting alone or as representatives
   of a group of underwriters.  Either or both of Goldman, Sachs & Co. and
   J.P. Morgan Securities Inc. may also act as agents. 

          The distribution of the Debt Securities may be effected from time to
   time in one or more transactions at a fixed price or prices, which may be
   changed, or at market prices prevailing at the time of sale, at prices
   related to such prevailing market prices or at negotiated prices. 

          In connection with the sale of Debt Securities, underwriters may
   receive compensation from the Company or from purchasers of Debt Securities
   for whom they may act as agents in the form of discounts, concessions or
   commissions. Underwriters may sell Debt Securities to or through dealers,
   and such dealers may receive compensation in the form of discounts,
   concessions or commissions from the underwriters and/or commissions from
   the purchasers for whom they may act as agents. Underwriters, dealers and
   agents that participate in the distribution of Debt Securities may be
   deemed to be underwriters, and any discounts or commissions received by
   them from the Company and any profit on the resale of Debt Securities by
   them may be deemed to be underwriting discounts and commissions, under the
   Securities Act. Any such underwriter or agent will be identified, and any
   such compensation received from the Company will be described in the
   Prospectus Supplement. 

          Under agreements which may be entered into by the Company,
   underwriters and agents who participate in the distribution of Debt
   Securities may be entitled to indemnification by the Company against
   certain liabilities, including liabilities under the Securities Act. 

          If so indicated in the Prospectus Supplement, the Company will
   authorize underwriters or other persons acting as the Company's agents to
   solicit offers by certain institutions to purchase Offered Securities from
   the Company pursuant to contracts providing for payment and delivery on a
   future date. Institutions with which such contracts may be made include
   commercial and savings banks, insurance companies, pension funds,
   investment companies, educational and charitable institutions and others,
   but in all cases such institutions must be approved by the Company. The
   obligations of any purchaser under any such contract will be subject to the
   condition that the purchase of the Offered Securities shall not at the time
   of delivery be prohibited under the laws of any jurisdiction to which such
   purchaser is subject. The underwriters and such other agents will not have
   any responsibility in respect of the validity or performance of such
   contracts. 

          Unless otherwise indicated in the Prospectus Supplement, the Company
   does not intend to list any of the Debt Securities on a national securities
   exchange. In the event the Debt Securities are not listed on a national
   securities exchange, certain broker-dealers may make a market in the Debt
   Securities, but will not be obligated to do so and may discontinue any
   market making at any time without notice. No assurance can be given that
   any broker-dealer will make a market in the Debt Securities or as to the
   liquidity of the trading market for the Debt Securities, whether or not the
   Debt Securities are listed on a national securities exchange. The
   Prospectus Supplement with respect to any Offered Securities will state, if
   known, whether or not any broker-dealer intends to make a market in such
   Offered Securities. If no such determination has been made, the Prospectus
   Supplement will so state. 




                                  LEGAL MATTERS

          The legality of the Debt Securities will be passed upon by White &
   Case, 1155 Avenue of the Americas, New York, New York 10036, as counsel for
   the Company, and by Mayer, Brown & Platt, 190 South LaSalle Street,
   Chicago, Illinois 60603, as counsel for any underwriters or agents.  Morton
   Moskin, a director and shareholder of the Company, was an active member of
   the firm of White & Case through December 31, 1994.  As of January 1, 1995,
   Mr. Moskin beneficially owned 5,853 shares of the common stock of the
   Company. 

                                     EXPERTS

          The consolidated financial statements of the Company appearing in
   its Annual Report on Form 10-K for the year ended June 30, 1994 have been
   audited by Ernst & Young LLP, independent auditors, as set forth in their
   report thereon included therein and incorporated herein by reference.  Such
   consolidated financial statements are incorporated herein by reference in
   reliance upon such report given upon the authority of such firm as experts
   in accounting and auditing.




     
                                                                 



                 NO  PERSON  HAS  BEEN  AUTHORIZED   TO  GIVE  ANY
      INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER  THAN THOSE
      CONTAINED IN  THIS PROSPECTUS, AND, IF  GIVEN OR  MADE, SUCH
      INFORMATION OR  REPRESENTATIONS MUST NOT BE  RELIED UPON  AS
      HAVING BEEN AUTHORIZED. THIS PROSPECTUS DOES NOT  CONSTITUTE
      AN OFFER TO SELL OR THE SOLICITATION OF AN  OFFER TO BUY ANY
                                                                                    MALLINCKRODT GROUP INC.
      SECURITIES OTHER THAN THE SECURITIES TO WHICH  IT RELATES OR
      ANY OFFER TO SELL  OR THE  SOLICITATION OF AN  OFFER TO  BUY
      SUCH SECURITIES  IN ANY CIRCUMSTANCES IN WHICH SUCH OFFER OR
      SOLICITATION  IS  UNLAWFUL. NEITHER  THE  DELIVERY  OF  THIS
                                                                                        DEBT SECURITIES
      PROSPECTUS NOR  ANY  SALE MADE  HEREUNDER SHALL,  UNDER  ANY
      CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS BEEN NO
      CHANGE IN THE  AFFAIRS OF THE COMPANY SINCE THE  DATE HEREOF
      OR THAT  THE INFORMATION  CONTAINED HEREIN IS  CORRECT AS OF
      ANY TIME SUBSEQUENT TO ITS DATE.




                                                                           ___________________
              
                       _________________________


                           TABLE OF CONTENTS

                                                              PAGE

      AVAILABLE INFORMATION . . . . . . . . . . . . . . . . . .  2
      INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE . . . . .  2
      THE COMPANY . . . . . . . . . . . . . . . . . . . . . . .  4               [LOGO]
    USE OF PROCEEDS . . . . . . . . . . . . . . . . . . . . .  5
      RATIO OF EARNINGS TO FIXED CHARGES  . . . . . . . . . . .  5
      DESCRIPTION OF THE SECURITIES . . . . . . . . . . . . . .  6
      PLAN OF DISTRIBUTION  . . . . . . . . . . . . . . . . . . 16
      LEGAL MATTERS . . . . . . . . . . . . . . . . . . . . . . 17
      EXPERTS . . . . . . . . . . . . . . . . . . . . . . . . . 17

      
                                               ___________________

   
                                     PART II
                      INFORMATION NOT REQUIRED IN PROSPECTUS

   ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

        The following statement sets forth the estimated amounts of expenses,
   other than underwriting discounts and commissions, to be borne by
   Registrant in connection with the distribution of the Securities. 

   
                                                                                                   
                    Securities and Exchange Commission Registration Fee . . . . . . . . . . . . . .   $ 86,208
                    Trustee's Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     16,000*
                    Printing Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    100,000*
                    Rating Agency Fees  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    100,000*
                    Accounting Fees and Expenses  . . . . . . . . . . . . . . . . . . . . . . . . .     40,000*




                    Legal Fees and Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . .    100,000*
                    Blue Sky Fees and Expenses  . . . . . . . . . . . . . . . . . . . . . . . . . .     15,000*
                    Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     17,792*
                                     Total Expenses . . . . . . . . . . . . . . . . . . . . . . . .   $475,000

     _______

     *Estimated
     

   ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

        The Company's By-Laws provide for indemnification, to the fullest
   extent permitted by applicable law, of any of its directors and officers
   who are, or have been, or are threatened to be, made a party to an action
   or proceeding, whether civil or criminal, by reason of the fact that such
   director or officer is a director or officer of the Company, against any
   judgments, fines, amounts paid in settlement and expenses, including
   attorneys' fees, or any appeal therein. The By-Laws also provide that
   additional indemnification may be provided by the Company to any other
   person to the extent permitted by applicable law. 

        The Company's Certificate of Incorporation provides that a current or
   former director shall not be liable to the Company or its shareholders for
   damages for any breach of duty except to the extent New York State law
   prohibits elimination or limitation of such liability. 

        The Company has insurance to indemnify its directors and officers,
   within the limits of the Company's insurance policies, for those
   liabilities in respect of which such indemnification insurance is permitted
   under the laws of the State of New York. 

        Reference is made to Sections 721-726 of the New York Business
   Corporation Law ("B.C.L."), which are summarized below. 

        Section 721 of the B.C.L. provides that indemnification pursuant to
   the B.C.L. shall not be deemed exclusive, provided that no indemnification
   may be made if a judgment or other final adjudication adverse to the
   director or officer establishes that (i) his acts were committed in bad
   faith or were the result of active and deliberate dishonesty, and, in
   either case, were material to the cause of action so adjudicated, or
   (ii) he personally gained in fact a financial profit or other advantage to
   which he was not legally entitled. 

        Section 722 of the B.C.L. provides that a corporation may indemnify a
   director or officer made, or threatened to be made, a party to any action
   whether derivative or nonderivative, or whether civil or criminal, against
   judgments, fines, amounts paid in settlement and reasonable expenses
   actually and necessarily incurred as a result of such action, if such
   director or officer acted in good faith, for a purpose which he reasonably
   believed to be in the best interests of the corporation and, in criminal
   actions or proceedings, in addition, had no reasonable cause to believe
   that his conduct was unlawful. In derivative actions, the statute provides
   that no indemnification shall be made in respect of (1) a threatened
   action, or a pending action which is settled or otherwise disposed of, or
   (2) any claim, issue or matter as to which such person shall have been
   adjudged to be liable to the corporation unless and to the extent an
   appropriate court determines that the person is fairly and reasonably
   entitled to indemnification. 




        Section 723 of the B.C.L. specifies the manner in which payment of
   such indemnification may be authorized by the corporation. It provides that
   indemnification by a corporation is mandatory in any case in which the
   director or officer has been successful, whether on the merits or
   otherwise, in defending an action. In any other case, indemnification under
   Section 722 of the B.C.L. or as otherwise permitted under Section 721 of
   the B.C.L. may be made by the corporation only if authorized by the
   appropriate corporate action as set forth in such Section 723. Section 724
   of the B.C.L. provides that upon proper application by a director or
   officer, indemnification shall be awarded by a court to the extent
   authorized under Sections 722 and 723 of the B.C.L. Section 725 of the
   B.C.L. contains certain other miscellaneous provisions affecting the
   indemnification of directors and officers, including provision for the
   return of amounts paid as indemnification if any such person is ultimately
   found not to be entitled thereto. 

        Section 726 of the B.C.L. authorizes the purchase and maintenance of
   insurance to indemnify (1) a corporation for any obligation which it incurs
   as a result of the indemnification of directors and officers under the
   above sections, (2) directors and officers in instances in which they may
   be indemnified by a corporation under such sections, and (3) directors and
   officers in instances in which they may not otherwise be indemnified by a
   corporation under such sections, provided the contract of insurance
   covering such directors and officers provides, in a manner acceptable to
   the New York State Superintendent of Insurance, for a retention amount and
   for co-insurance. Such insurance may not provide  for the indemnification,
   other than defense costs, of any director or officer whose deliberate and
   active dishonesty is held material to an adjudicated cause of action in a
   judgment adverse to the insured nor of any director or officer who
   personally gained in fact a financial profit or other advantage to which he
   was not legally entitled. 

   ITEM 16.  EXHIBITS.

            NO.
           1.1     Form of Underwriting Agreement
           1.2     Form of Distribution Agreement
           4.1     Form of Indenture dated as of March 15, 1985, as
                   amended and restated as of February 15, 1995,
                   between the Company and First Trust Company of New
                   York, National Association, as Trustee, including
                   Form of Securities
           5.1     Opinion of White & Case
          12.1     Computation of Ratio of Earnings to Fixed Charges
          23.1     Consent of Ernst & Young LLP
          23.2     Consent of White & Case (included in Exhibit 5.1)
          25.1     Form T-1, Statement of Eligibility under Trust
                   Indenture Act of 1939


   ITEM 17.  UNDERTAKINGS.

        The undersigned registrant hereby undertakes: 

        (1)  to file, during any period in which offers or sales are being
   made, a post-effective amendment to this registration statement: 

        (i)  to include any prospectus required by Section 10(a)(3) of the
   Securities Act of 1933; 




       (ii)  to reflect in the prospectus any facts or events arising after
   the effective date of the registration statement (or the most recent
   post-effective amendment thereof) which, individually or in the aggregate,
   represent a fundamental change in the information set forth in the
   registration statement; 

      (iii)  to include any material information with respect to the plan of
   distribution not previously disclosed in the registration statement or any
   material change to such information in the registration statement;

       Provided, however, that paragraphs (1) (i) and (1) (ii) do not apply if
   the information required to be included in a post-effective amendment by
   those paragraphs is contained in periodic reports filed by the registrant
   pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
   1934 that are incorporated by reference in the registration statement.

        (2)  that, for the purpose of determining any liability under the
   Securities Act of 1933, each such post-effective amendment shall be deemed
   to be a new registration statement relating to the securities offered
   therein, and the offering of such securities at the time shall be deemed to
   be the initial bona fide offering thereof. 

        (3)  to remove from registration by means of a post-effective
   amendment any of the securities being registered which remain unsold at the
   termination of the offering. 

        The undersigned registrant hereby undertakes that, for purposes of
   determining any liability under the Securities Act of 1933, each filing of
   the registrant's annual report pursuant to Section 13(a) or 15(d) of the
   Securities Exchange Act of 1934 (and, where applicable, each filing of an
   employee benefit plan's annual report pursuant to Section 15(d) of the
   Securities Exchange Act of 1934) that is incorporated by reference in the
   registration statement shall be deemed to be a new registration statement
   relating to the securities offered therein, and the offering of such
   securities at that time shall be deemed to be the initial bona fide
   offering thereof. 

        Insofar as indemnification for the liabilities arising under the
   Securities Act of 1933 may be permitted to directors, officers and
   controlling persons of the registrant pursuant to the provisions described
   under Item 15 above, or otherwise, the registrant has been advised that in
   the opinion of the Securities and Exchange Commission such indemnification
   is against public policy as expressed in such Act and is, therefore,
   unenforceable.  In the event that a claim for indemnification against such
   liabilities (other than the payment by the registrant of expenses incurred
   or paid by a director, officer or controlling person of the registrant in
   the successful defense of any action, suit or proceeding) is asserted by
   such director, officer or controlling person in connection with the
   securities being registered, the registrant will, unless in the opinion of
   its counsel the matter has been settled by controlling precedent, submit to
   a court of appropriate jurisdiction the question whether such
   indemnification by it is against public policy as expressed in the Act and
   will be governed by the final adjudication of such issue.
                                    SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, the
   registrant certifies that it has reasonable grounds to believe that it
   meets all of the requirements for filing on Form S-3 and has duly caused
   this Registration Statement to be signed on its behalf by the undersigned,
   thereunto duly authorized, in St. Louis, Missouri, on the 15th day of
   February, 1995.




                                 Mallinckrodt Group Inc.

                            By C. RAY HOLMAN
                               Name:  C. Ray Holman
                               Title: Chairman of the Board, President and
                                      Chief Executive Officer



        Pursuant to the requirements of the Securities Act of 1933, this
   Registration Statement has been signed below by the following Persons, in
   the capacities indicated, on February 15, 1995.



           Signature                Title

           C. RAY HOLMAN            Chairman of the Board, President and
           C. Ray Holman            Chief Executive Officer

           MICHAEL A. ROCCA         Senior Vice President and 
           Michael A. Rocca         Chief Financial Officer

           WILLIAM B. STONE         Vice President and Controller
           William B. Stone         (Principal Accounting Officer)

           RAYMOND F. BENTELE       Director
           Raymond F. Bentele

           WILLIAM L. DAVIS, III    Director
           William L. Davis, III

           RONALD G. EVENS          Director
           Ronald G. Evens

           ALEC FLAMM               Director
           Alec Flamm

           ROBERTA S. KARMEL        Director
           Roberta S. Karmel

           CLAUDINE B. MALONE       Director
           Claudine B. Malone

           MORTON MOSKIN            Director
           Morton Moskin

           HERVE M. PINET           Director
           Herve M. Pinet

           BRIAN M. RUSHTON         Director
           Brian M. Rushton

           DANIEL R. TOLL           Director
           Daniel R. Toll


                                INDEX TO EXHIBITS


   




                 EXHIBIT                                                                                    SEQUENTIAL
                                                                                                             PAGE NO.
                                                                                                     
                  
                  1.1          Form of Underwriting Agreement                                                    *
                  1.2          Form of Distribution Agreement                                                    *
                  4.1          Form of Indenture dated as of March 15, 1985, as amended and restated as
                               of February 15, 1995, between the Company and First Trust Company of New          *
                               York, National Association, as Trustee, including Form of Securities
                  5.1          Opinion of White & Case                                                           *
                 12.1          Computation of Ratio of Earnings to Fixed Charges                                 *
                 23.1          Consent of Ernst & Young LLP                                                      *
                 23.2          Consent of White & Case (included in Exhibit 5.1)
                 25.1          Form T-1, Statement of Eligibility under Trust Indenture Act of 1939              *

     _______

     *   Filed with this Registration Statement by direct electronic transmission.