EX-109
                                 AIRGAS, INC.

                  AMENDED AND RESTATED 1984 STOCK OPTION PLAN
                      (As amended effective May 22, 1995)

1.   Purpose

     The 1984 Stock Option Plan (the "Plan") is intended to enable AIRGAS,
INC. (the "Company") to attract and retain capable officers and other key
employees of the Company and its subsidiaries and to provide them with
incentives to promote the best interests of the Company by enabling and
encouraging them, through the grant of incentive and nonstatutory stock
options to acquire Company stock. (Incentive and nonstatutory stock options
are sometimes hereinafter referred to individually as an "Option" and,
collectively, as the "Options").

     As used in the Plan, the term "incentive stock options" means options
which are intended to qualify as incentive stock options within the meaning of
section 422 of the Internal Revenue Code of 1986 as amended from time to time
(the "Code"), and which are designated as incentive stock options in an Option
Agreement (as defined in Section 5(m) below).

     The term "nonstatutory stock options" means options which are intended to
qualify as nonstatutory stock options within the meaning of section 83 of the
Code, and which are designated as nonstatutory stock options in an Option
Agreement.

2.   Administration

     The Plan shall be administered by the Stock Option Committee of the Board
of Directors (the "Committee"), which shall consist of the members of the
Nominating and Compensation Committee.

     Subject to the terms of the Plan, the Committee shall have full authority
to select the persons to whom incentive and/or statutory stock options shall
be granted under the Plan and to set the other terms and conditions thereof. 
The Committee also shall have the authority to establish, from time to time,
such rules and regulations, not inconsistent with the provisions of the Plan,
for the proper administration of the plan, and to make such determinations and
interpretations under or in connection with the Plan and the Options granted
hereunder as it deems necessary or advisable.  All such rules, regulations,
determinations and interpretations shall be binding and conclusive upon the
Company and upon their respective legal representatives, beneficiaries,
successors and assigns and upon all other persons claiming under or
through any of them.

3.   Eligibility

     The persons eligible to participate in the Plan shall be the officers and
other key employees, including directors who are also officers or key
employees, of the Company and itssubsidiaries who may be designated by the
Committee.  The persons eligible to receive Options under the Plan are
hereinafter referred to as "Eligible Individuals."

4.   Stock Subject to the Plan

     Subject to the provisions of Section 7 hereof, 7,040,000 shares of the
Company's Common Stock, par value $.01 per share ("Shares"), shall be
available for the grant of Options under the Plan, provided that the aggregate
number of Shares for which Options may be granted to directors under the Plan
shall not exceed 1,000,000 Shares.  Shares issuable under the Plan may be
authorized by unissued Shares or reacquired Shares, as the Board shall 

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determine.

     If any Option granted under the Plan expires or otherwise terminates, in
whole or in part, without having been exercised, the Shares subject to the
unexercised portion of such Option shall be available for the granting of
Options under the Plan as fully as if such Shares had never been subject to an
Option.

5.   Grants, Terms and Conditions of Options

     From time to time until the expiration or earlier termination of the
Plan, the Committee may grant to Eligible Individuals (such grantees are
hereinafter referred to as "Optionees") under the plan such incentive and/or
nonstatutory stock options as it determines are warranted.  Options granted
pursuant to the Plan shall be in such form as the Committee shall be in such
form as the Committee from time to time approve, and shall be subject to the
following terms and conditions to the extent such terms and conditions are
applicable to such Option.

          (a)  Price.The option price per Share under each Option granted
under the Plan shall be determined and fixed by the Committee in its
discretion but shall not be less than the fair market value of the Shares on
the date of grant of such Option.  The fair market value of a Share on any day
shall be determined by such method of determining fair market value as shall
be permitted by the Code, or the rules and regulations thereunder, and adopted
by the Committee from time to time.

          (b)  Term. Subject to earlier termination as provided in Subsections
(c) through (g) below and in Section 7 hereof, and except as otherwise
provided in Subsection (k) below, the duration of each Option shall not be
more than ten (10) years from the date of grant.

          (c)  Exercise and Payment.  Twenty-five percent of the options
granted to each Optionee shall become exercisable for each completed year of
continuous employment with the Company, commencing upon the first anniversary
of the date of grant, as described in the following schedule: year one - 25
percent; year two - 50 percent; year three - 75 percent; and year four - 100
percent.  The Committee may specify other installments or dates for the
exercise of options and may determine that Options will become immediately
exercisable in whole or in part in the event of termination of employment,
death, disability or retirement.  The purchase price shall be payable in cash
or its equivalent.  Except as otherwise provided in Subsections (d) through
(g), (p) and (q) below, Options shall only be exercisable by an Optionee while
he remains in the employ of the Company or a related corporation.  Any Option
Shares, the right to thepurchase of which has accrued, may be purchased at any
time up to the expiration or termination of the Option.  Options may be
exercised, in whole or in part, from time to time, by giving written notice of
exercise to the Company at its principal office, specifying the number of
Shares to be purchased, and accompanied by payment in full of the aggregate
purchase price for such Shares.

          (d)  Termination of Optionee's Employment.  If an Optionee's
employment with the Company is terminated for any reason, with or without
cause, other than by reason of death, disability, or retirement (as described
in Subsections (e), (f) and (g) below) prior to the expiration of the original
term of his Option ("Expiration Date") such Option may be exercised by the
Optionee, to the extent to the number of Shares with respect to which the
Optionee could have exercised it on the date of such termination of
employment, or to any greater extent permitted by the Committee pursuant to
Subsections (c) and (q),  at any time prior to the earlier of (i) 30 days
following the date of the Optionee's termination of employment, or (ii)  the 

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Expiration Date of such Option.  For purposes of this Subsection, an
Optionee's employment relationship shall be considered as continuing intact
while the Optionee is on military leave, sick leave, or other bona fide leave
of absence (such as temporary employment by the government) if the period of
such leave does not exceed 90 days, or, if longer, so long a the Optionee's
right to reemployment with the Company or a related corporation is guaranteed
either by statute or contract.

          (e)  Death of Optionee.  If an Optionee's employment is terminated
by reason of his death prior to the Expiration Date of his Option, or if an
Optionee whose employment is terminated as a result of retirement or
disability (as described in Subsections (f) and (g) below, if earlier, such
Option may be exercised, by the Optionee's estate, personal representative or
beneficiary who acquired the right to exercise such Option by bequest or
inheritance or by reason of the death of the Optionee, to the extent of the
number of shares with respect to which the Optionee could have exercised it on
the date of his death, subject to pro-rata vesting under Subsection (p) below,
or to any greater extent permitted by the Committee, pursuant to Subsections
(c) and (q), at any prior time to the Expiration date of such Option.

          (f)  Disability of Optionee.  If an Optionee shall become disabled
(within the meaning of section 22(e)(3) of the Code) during his employment
with the Company and his employment with the Company is terminated as a
consequence of such disability prior to the Expiration Date of his Option,
such Option may be exercised by the Optionee, to the extent of such number of
Shares with respect to which the Optionee could have exercised it on the date
of such termination of employment, subject to pro-rata vesting under
Subsection (p) below, or to any greater extent permitted by the Committee,
pursuant to Subsections (c) and (q), at any time prior to the Expiration date
of such Option.  In the event of the Optionee's legal disability, such Option
may be so exercised by the Optionee's legal representative.

          (g)  Retirement of Optionee.  If any Optionee retires in accordance
with the retirement policy of the Company, or with the express consent of the
Board, and his employment with the Company and all related corporations is
terminated as a consequence of such retirement prior to the Expiration Date of
his Option, such may be exercised by the Optionee, to the extent of the number
of Shares with respect to which the Optionee could have exercised it on the
date of his retirement, subject to pro-rata vesting under Subsection (p)below,
or to any greater extent permitted by the Committee, pursuant to Subsections
(c) and (q), at any time prior to the Expiration date of such Option.

          (h)   Transferability.  No Option shall be assignable or
transferable by an Optionee otherwise than by will or by the laws of descent
and distribution, and during the lifetime of the Optionee, the Option shall be
exercisable only by him, or in the event of his legal disability, by his legal
representative.  Notwithstanding the foregoing, the Committee may grant
non-qualified Options that are transferable, without payment of consideration,
to immediate family members (i.e., spouses, children and grandchildren) of the
Optionee or to trusts for, or partnerships whose only partners are, such
family members.  The Committee may also amend outstanding non-qualified
Options to provide for such transferability.

          (i)  Rights as a Stockholder.  An Optionee shall have no rights as a
stockholder with respect to any Shares covered by his Option until the
issuance of a stock certificate to him representing such Shares.

          (j)  Sequential Exercise of Option.  Options granted under the Plan
shall be exercisable at the discretion of the Optionee without regard to the
price or the date of grant of any other outstanding Option which was granted
under this Plan or any other plan of the Company or a related corporation, or 

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a predecessor of the Company or a related corporation before or after the
granting of such Option to the same Optionee to purchase Shares, or to
purchase stock in a corporation which (at the time of granting of such option)
was a related corporation or to purchase stock in a predecessor corporation of
the Company or a related corporation.

          (k)  Ten Percent Shareholder.  Any other provision of the Plan
notwithstanding, if an Eligible Individual owns more than ten percent (10%) of
the total combined voting power of all shares of stock of the Company or of a
related corporation at the time an incentive stock option is granted to such
Eligible Individual, the option price of the incentive stock option shall not
be less than one hundred ten percent (110%) of the fair market value of the
optioned Shares on the date such incentive stock option is granted, and
such incentive stock option by its terms shall not be exercisable after the
expiration of five (5) years from the date such incentive stock option is
granted.  For purposes of the Subsection, an Eligible Individual shall be
considered to own any shares of the Company or a related corporation which are
attributed to such Eligible Individual under Section 425(d) of the Code.

          (l)  Annual Limit on Grant of Incentive Stock Options.  The
aggregate fair market value (determined as of the time an incentive stock
option is granted) of the Shares for which an Eligible Individual may be
granted incentive stock options in any calendar year (under the Plan and any
other incentive stock option plan of the Company or a relate corporation)
shall not exceed one hundred thousand dollars ($100,000), or such other annual
limit as may be in effect under the Code at the time the incentive stock
option is granted.  In addition, the aggregate fair market value of the stock
exercisable for the first time by an Eligible Individual during any calendar
year shall not exceed $100,000.

          (m)  Option Agreement and Further Conditions.   As soon as
practicable after the grant of an Option, each Optionee shall enter into, and
be bound by the terms of, a stock option agreement (the "Option Agreement")
which shall state the number of Shares to which the Option pertain.  The
Option Agreement shall set forth such terms, conditions and restrictions
regarding the Option not inconsistent with the Plan as the Committee, in its
discretion, may impose.  The Committee may impose further conditions upon the
exercisability of Options and restrictions on transferability with respect to
Shares issued upon exercise of Options.

          (n)  Withholding.   The obligation of the Company to deliver Shares
upon the exercise of any Option shall be subject to any applicable federal,
state and local tax withholding requirements.

          (o)  Change in Control.   In the event of a Change in Control of the
Company, as defined below, and notwithstanding any provision of this Plan to
the contrary, all Options which have not terminated as of the date of such
"Change in Control" and are which then held by any Optionee, Optionee's
estate, personal representative or legal representative, shall, as of the date
of such "Change of Control" become immediately exercisable notwithstanding the
exercise periods specified in Subsection (c) and the exercise periods
specified in the relevant Option Agreement.  A "Change of Control" shall be
deemed to have taken place upon the date when (i) an individual, firm,
corporation, partnership or other entity (other than the Company, any
subsidiary of the Company, or any employee benefit plan of the Company or a
subsidiary of the Company), together with all affiliates and associates (as
such terms are defined in Rule 12(b)-2 under the Securities Exchange Act of
1934, as amended) shall become the beneficial owner of 20% or more of the
common shares of the Company the outstanding; providing, however, that this
subsection (i) shall not apply to Peter McCausland ("McCausland"), unless and
until McCausland, together with all affiliates and associates, becomes the 

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beneficial owner of 30% or more of the common shares of the Company than
outstanding; (ii) stockholders approve the consummation of any merger of the
Company or any sale or other disposition of all or substantially all of its
assets, if the stockholders of the Company immediately before such transaction
own, immediately after consummation of such transaction, equity securities
(other than options and other rights to acquire equity securities) possessing
less than 50% of the voting power of the surviving or acquiring corporation;
or (iii) a change in the majority of the Board occurs during any 24-month
period without the approval of a majority of directors in office at the
beginning of such period.

          (p)  Pro-Rata Vesting.   In the event an Optionee ceases to be an
employee of the Company or a subsidiary by reason of retirement, death or
disability after the grant to such person of a nonstatutory Option but before
the Option has become exercisable in full, a pro rata portion of the shares
subject to the current fiscal year's installment of such Option shall become
exercisable, based upon the proportion which the number of full calendar
months in such fiscal year prior to such termination of employment bears to
the 12 calendar months in the fiscal year.

          (q)  Acceleration of Vesting.  Notwithstanding any other provision
of this Plan, the Committee may accelerate vesting and exercisability of any
outstanding nonstatutory option or any portion thereof to a date or dates
designated by the Committee in accordancewith such terms and subject to such
conditions, if any, as the Committee shall specify and as are agreed to by the
Optionee.

          (r)  Maximum Shares to be Granted to an Optionee.  The maximum
number of shares of Common Stock upon which Options may be granted to any
Optionee in any fiscal year of the Company shall be 200,000, subject to
adjustment as provided in Section 7 of this Plan.

6.   Investment Purpose

     Each Optionee or his legal representative or beneficiaries, may be
required to give satisfactory assurance that Shares acquired upon exercise of
an Option are being acquired for investment not with a view to distribution,
and certificates representing such Shares may be legended accordingly.  Such
Shares shall be transferable thereafter only if the proposed transfer is
permissible under the Plan and the Option and if, in the opinion of counsel
(who shall be satisfactory to the Company), such transfer at such time be in
compliance with applicable securities laws.

7.   Adjustments

     The number of Shares which may be issued under the Plan, as stated in
Section 4 hereof, and the number of Shares issuable upon exercise of
outstanding Options under the Plan (as well as the exercise price per share
under such outstanding Options) shall be equitably adjusted by the Committee
to reflect any stock dividend, stock split, share combination, or similar
change in capitalization of the Company.

     In the event the Company is liquidated or a corporate transaction
described in Section 425(a) of the Code and the Treasury Regulations issued
thereunder occurs (as, for example, a merger, consolidation, acquisition of
property or stock separation, or reorganization), each outstanding Option
shall be assumed by the surviving or successor corporation, if any, provided,
however, that the Committee may terminate each outstanding Option if it
determines that such assumption would not be in the best interests if the
Company or a related corporation.  The Committee shall give each Optionee to
whom an outstanding Option has been granted fourteen (14) days notice prior to
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such termination (by reason of such liquidation or corporate transaction), so
that any outstanding Option or portion thereof may be exercised up to, and
including the earlier of: (i) the date immediately preceding such termination,
or (ii) the Expiration date of such Option.  In such event, the Committee may,
in its sole discretion, allow each such Optionee (except directors unless the
exercisability of Options is accelerated pursuant to Section 5(o) hereof to
exercise his Option in full or in part (if it has not otherwise terminated)
regardless of the provisions of Section 5(c) hereof or of the terms of any
Option Agreement.  The Committee may in its discretion, change the number of
Shares issuable upon exercise of outstanding Options (except with respect to
Options held by directors).

8.   Amendment or Discontinuance of the Plan

     The Board at any time, and from time to time, may suspend or discontinue
the Plan or amend it in any respect whatsoever, provided, however, that,
without the approval of the stockholders of the Company (which approval, in
the case of a change in the maximum number of Shares with respect to which
grants may be made under the Plan, may be obtained within twelve months of the
date the change in the maximum number of Shares is adopted by the Board): (a)
the class of individuals eligible to receive Options shall not be changed, (b)
the maximum number of Shares with respect to which grants may be made under
the Plan shall not be increased except as permitted under Section 7 hereof,
(c) the limitations on the price at which Options may be granted shall not be
changed, and (d) the duration of the plan under Section 13 shall materially
impair the rights of any holder of an outstanding Option without the consent
of such holder (or make any change that would result in the loss of the
availability of the exemption provided by Rule 16b-3 promulgated under Section
16(b) of the Securities Exchange Act of 1934).

9.   Absence of Rights

     The recommendation or selection of an Eligible Individual as a recipient
of an Option under the Plan shall not entitle such person to any Option unless
and until the grant actually has been made by appropriate action of the
Committee; and any such grant is subject to the provisions of the Plan. 
Further, the granting of an Option to a person shall not entitle that
person to continued employment, and the Company shall have the absolute right,
in its discretion, to retire such person in accordance with its retirement
policies or otherwise to terminate his employment, whether or not such
termination may result in a partial or total termination of his Option.

10.  Application of Funds

     The funds received by the Company upon the exercise of Options and
otherwise under the Plan shall be used for general corporate purposes.

11.  Shareholder Approval

     This Plan is subject to the approval of the holders of at least a
majority of the outstanding Shares, which approval was obtained on June 5,
1985, which date was within 12 months of the date the Plan was adopted by the
Company.

12.  No Obligation to Exercise Option

     The granting of an Option shall impose no obligation upon an Optionee to
exercise such Option.

13.  Termination of Plan


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     No Options may be granted after June 4, 1999, provided, however, that the
Plan and all outstanding Options shall remain in effect until such Options
have expired or are terminated in accordance with the Plan.