HOLOGIC, INC.

                 1995 COMBINATION STOCK OPTION PLAN

Section I.  Purpose of the Plan.

The purposes of this Hologic, Inc. 1995 Combination Stock Option Plan 
(the "1995 Plan") are (i) to provide long-term incentives and rewards to those 
key employees (the "Employee Participants") of Hologic, Inc. (the 
"Corporation") and its subsidiaries (if any), and any other persons (the "Non-
employee Participants") who are in a position to contribute to the long-term 
success and growth of the Corporation and its subsidiaries, (ii) to assist the 
Corporation in retaining and attracting executives and key employees with 
requisite experience and ability, and (iii) to associate more closely the 
interests of such executives and key employees with those of the Corporation's 
stockholders.  Notwithstanding the foregoing, if Section 16, as defined in 
Section II, is applicable to the Corporation, then any director of the 
Corporation who is a member of the Committee, as defined in paragraph (a) of 
Section III, shall not be eligible to receive any Stock Options.

Section II.   Definitions.

"Code" is the Internal Revenue Code of 1986, as it may be amended 
from time to time.

"Common Stock" is the $.01 par value common stock of the 
Corporation.

"Committee" is defined in Section III, paragraph (a).

"Corporation" is defined in Section I.

"Corporation ISOs" are all stock options (including 1995 Plan 
ISOs) which (i) are Incentive Stock Options and (ii) are granted under 
any plans (including this 1995 Plan) of the Corporation, a Parent 
Corporation and/or a Subsidiary Corporation.

"Employee Participants" is defined in Section I.

"Fair Market Value" of any property is the value of the property 
as reasonably determined by the Committee.

"Incentive Stock Option" is a stock option which is treated as an 
incentive stock option under Section 422 of the Code.

"1995 Plan" is defined in Section I.

"1995 Plan ISOs" are Stock Options which are Incentive Stock 
Options.

"Non-employee Participants" is defined in Section I.

"Non-qualified Option" is a Stock Option which does not qualify as 
an Incentive Stock Option or for which the Committee provides, in the 
terms of such option and at the time such option is granted, that the 
option shall not be treated as an Incentive Stock Option.

"Parent Corporation" has the meaning provided in Section 424(e) of 
the Code.

"Participants" are all persons who are either Employee 
Participants or Non-employee Participants.

"Permanent and Total Disability" has the meaning provided in 
Section 22(e)(3) of the Code.

"Section 16" means Section 16 of the Securities Exchange Act of 
1934, as amended, or any similar or successor statute, and any rules, 
regulations, or policies adopted or applied thereunder.

"Stockholder Approval" means the affirmative vote of at least a 
majority of the shares of Common Stock present and entitled to vote at a 
duly held meeting of the stockholders of the Corporation, unless a 
greater vote is required by state law or Section 16, if applicable to 
the Corporation, in which case such greater requirement shall apply.  
Stockholder approval may be obtained by written consent or other means, 
to the extent permitted by applicable state law.

"Stock Options" are rights granted pursuant to this 1995 Plan to 
purchase shares of Common Stock at a fixed price.

"Subsidiary Corporation" has the meaning provided in Section 
424(f) of the Code.

"Ten Percent Stockholder" means, with respect to a 1995 Plan ISO, 
any individual who directly or indirectly owns stock possessing more 
than 10% of the total combined voting power of all classes of stock of 
the Corporation or any Parent Corporation or any Subsidiary Corporation 
at the time such 1995 Plan ISO is granted.

Section III.  Administration.
(a)	The Committee.  This 1995 Plan shall be administered by a 
compensation committee designated by the Board of Directors of the 
Corporation, which may include any persons (including any or all of the 
directors) designated by the Board of Directors (the administering body is 
hereafter referred to as the "Committee").  The Committee shall serve at the 
pleasure of the Board of Directors, which may from time to time, and in its 
sole discretion, discharge any member, appoint additional new members in 
substitution for those previously appointed and/or fill vacancies however 
caused.  A majority of the Committee shall constitute a quorum and the acts of 
a majority of the members present at any meeting at which a quorum is present 
shall be deemed the action of the Committee.  No person shall be eligible to 
be a member of the Committee if that person's membership would prevent the 
plan from complying with Section 16, if applicable to the Corporation.  At 
such time as any class of equity security of the Corporation is registered 
pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the 
"Act"), (i) the Committee shall consist of at least two members of the Board 
of Directors and (ii) no member of the Committee while a member thereof shall 
be granted Stock Options under this Plan, nor may any person be appointed to 
the Committee unless he was not granted or awarded stock options or shares of 
Common Stock under this 1995 Plan or any other plan of the Corporation at any 
time within the one-year period immediately prior to such appointment as 
provided in Rule 16b-3 promulgated under the Act. 

(b)	Authority and Discretion of the Committee.  Subject to the express 
provisions of this 1995 Plan and provided that all actions taken shall be 
consistent with the purposes of this 1995 Plan, and subject to ratification by 
the Board of Directors only if required by applicable law, the Committee shall 
have full and complete authority and the sole discretion to:  (i) determine 
those persons who shall constitute key employees eligible to be Employee 
Participants; (ii) select the Participants to whom Stock Options shall be 
granted under this 1995 Plan; (iii) determine the size and the form of the 
Stock Options, if any, to be granted to any Participant; (iv) determine the 
time or times such Stock Options shall be granted including the grant of Stock 
Options in connection with other awards made, or compensation paid, to the 
Participant; (v) establish the terms and conditions upon which such Stock 
Options may be exercised and/or transferred, including the exercise of Stock 
Options in connection with other awards made, or compensation paid, to the 
Participant; (vi) make or alter any restrictions and conditions upon such 
Stock Options and the Stock received on exercise thereof, including, but not 
limited to, providing for limitations on the Participant's right to keep any 
Stock received on termination of employment; (vii) determine whether the 
Participant or the Corporation has achieved any goals or otherwise satisfied 
any conditions or requirements that may be imposed on or related to the 
exercise of Stock Options; and (viii) adopt such rules and regulations, 
establish, define and/or interpret these and any other terms and conditions, 
and make all determinations (which may be on a case-by-case basis) deemed 
necessary or desirable for the administration of this 1995 Plan.  
Notwithstanding any provision of this 1995 Plan to the contrary, only Employee 
Participants shall be eligible to receive 1995 Plan ISOs.  If the Common Stock 
is registered pursuant to Section 12 of the 1934 Act, then notwithstanding any 
provision of this 1995 Plan to the contrary, grants of Stock Options to non-
employee directors must be uniformly offered to all such non-employee 
directors.

(c)	Applicable Law.  This 1995 Plan, and all Stock Options shall be 
governed by the law of the state in which the Corporation is incorporated.

Section IV.  Terms of Stock Options.

(a)	Agreements.  Stock Options shall be evidenced by a written 
agreement between the Corporation and the Participant awarded the Stock 
Option.  This agreement shall be in such form, and contain such terms and 
conditions (not inconsistent with this 1995 Plan) as the Committee may 
determine.  If the Stock Option described therein is not intended to be an 
Incentive Stock Option, but otherwise qualifies as an Incentive Stock Option, 
the agreement shall include the following, or a similar, statement: "This 
stock option is not intended to be an Incentive Stock Option, as that term is 
described in Section 422 of the Internal Revenue Code of 1986, as amended."

(b)	Term.  Stock Options shall be for such periods as may be 
determined by the Committee, provided that in the case of 1995 Plan ISOs, the 
term of any such 1995 Plan ISO shall not extend beyond three months after the 
time the Participant ceases to be an employee of the Corporation.  
Notwithstanding the foregoing, the Committee may provide in a 1995 Plan ISO 
that in the event of the Permanent and Total Disability or death of the 
Participant, the 1995 Plan ISO may be exercised by the Participant or his 
estate (if applicable) for a period of up to one year after the date of such 
Permanent and Total Disability or Death.  In no event may a 1995 Plan ISO be 
exercisable (including provisions, if any, for exercise in installments) 
subsequent to ten years after the date of grant, or, in the case of 1995 Plan 
ISOs granted to Ten Percent Stockholders, more than five years after the date 
of grant.

(c)	Purchase Price.  The purchase price of shares purchased pursuant 
to any Stock Option shall be determined by the Committee, and shall be paid by 
the Participant or other person permitted to exercise the Stock Option in full 
upon exercise, (i) in cash, (ii) by delivery of shares of Common Stock (valued 
at their Fair Market Value on the date of such exercise), (iii) any other 
property (valued at its Fair Market Value on the date of such exercise), or 
(iv) any combination of cash, stock and other property, with any payment made 
pursuant to subparagraphs (ii), (iii) or (iv) only as permitted by the 
Committee, in its sole discretion.  In no event will the purchase price of 
Common Stock be less than the par value of the Common Stock.  Furthermore, the 
purchase price of Common Stock subject to a 1995 Plan ISO shall not be less 
than the Fair Market Value of the Common Stock on the date of the issuance of 
the 1995 Plan ISO, provided that in the case of 1995 Plan ISOs granted to Ten 
Percent Stockholders, the purchase price shall not be less than 110% of the 
Fair Market Value of the Common Stock on the date of issuance of the 1995 Plan 
ISO.

(d)	Further Restrictions as to Incentive Stock Options.  To the extent 
that the aggregate Fair Market Value of Common Stock with respect to which 
Corporation ISOs (determined without regard to this section) are exercisable 
for the first time by any Employee Participant during any calendar year 
exceeds $100,000, such Corporation ISOs shall be treated as options which are 
not Incentive Stock Options.  For the purpose of this limitation, options 
shall be taken into account in the order granted, and the Committee may 
designate that portion of any Corporation ISO that shall be treated as not an 
Incentive Stock Option in the event that the provisions of this paragraph 
apply to a portion of any option, unless otherwise required by the Code or 
regulations of the Internal Revenue Service.  The designation described in the 
preceding sentence may be made at such time as the Committee considers 
appropriate, including after the issuance of the option or at the time of its 
exercise.  For the purpose of this section, Fair Market Value shall be 
determined as of the time the option with respect to such stock is granted.

(e)	Restrictions.  At the discretion of the Committee, the Stock 
Options, as well as the Common Stock issued pursuant to the Stock Options, may 
be subject to restrictions on vesting or transferability.  For the purposes of 
this limitation, options shall be taken into account in the order granted.

(f)	Withholding of Taxes.  Pursuant to applicable federal, state, 
local or foreign laws, the Corporation may be required to collect income or 
other taxes upon the grant of a Stock Option to, or exercise of a Stock Option 
by, a holder.  The Corporation may require, as a condition to the exercise of 
a Stock Option, or demand, at such other time as it may consider appropriate, 
that the Participant pay the Corporation the amount of any taxes which the 
Corporation may determine is required to be withheld or collected, and the 
Participant shall comply with the requirement or demand of the Corporation.  
In its discretion, the Corporation may withhold shares to be received upon 
exercise of a Stock Option if it deems this an appropriate method for 
withholding or collecting taxes.

(g)	Securities Law Compliance.  Upon exercise (or partial exercise) of 
a Stock Option, the Participant or other holder of the Stock Option shall make 
such representations and furnish such information as may, in the opinion of 
counsel for the Corporation, be appropriate to permit the Corporation to issue 
or transfer Stock in compliance with the provisions of applicable federal or 
state securities laws.  The Corporation, in its discretion, may postpone the 
issuance and delivery of Stock upon any exercise of this Option until 
completion of such registration or other qualification of such shares under 
any federal or state laws, or stock exchange listing, as the Corporation may 
consider appropriate.  Furthermore, the Corporation is not obligated to 
register or qualify the shares of Common Stock to be issued upon exercise of a 
Stock Option under federal or state securities laws (or to register or qualify 
them at any time thereafter), and it may refuse to issue such shares if, in 
its sole discretion, registration or exemption from registration is not 
practical or available.  The Corporation may require that prior to the 
issuance or transfer of Stock upon exercise of a Stock Option, the Participant 
enter into a written agreement to comply with any restrictions on subsequent 
disposition that the Corporation deems necessary or advisable under any 
applicable federal and state securities laws.  Certificates of Stock issued 
hereunder may bear a legend reflecting such restrictions.

(h)	Right to Stock Option.  No employee of the Corporation or any 
other person shall have any claim or right to be a participant in this 1995 
Plan or to be granted a Stock Option hereunder.  Neither this 1995 Plan nor 
any action taken hereunder shall be construed as giving any person any right 
to be retained in the employ of the Corporation.  Nothing contained hereunder 
shall be construed as giving any person any equity or interest of any kind in 
any assets of the Corporation or creating a trust of any kind or a fiduciary 
relationship of any kind between the Corporation and any such person.  As to 
any claim for any unpaid amounts under this 1995 Plan, any person having a 
claim for payments shall be an unsecured creditor.

(i)	Indemnity.  Neither the Board of Directors nor the Committee, nor 
any members of either, nor any employees of the Corporation or any parent, 
subsidiary, or other affiliate, shall be liable for any act, omission, 
interpretation, construction or determination made in good faith in connection 
with their responsibilities with respect to this 1995 Plan, and the 
Corporation hereby agrees to indemnify the members of the Board of Directors, 
the members of the Committee, and the employees of the Corporation and its 
parent or subsidiaries in respect of any claim, loss, damage, or expense 
(including reasonable counsel fees) arising from any such act, omission, 
interpretation, construction or determination to the full extent permitted by 
law.

(j)	Participation by Foreigners.  Without amending this 1995 Plan, 
except to the extent required by the Code in the case of Incentive Stock 
Options, the Committee may modify grants made to participants who are foreign 
nationals or employed outside the United States so as to recognize differences 
in local law, tax policy, or custom.

Section V.  Amendment and Termination; Adjustments Upon Changes in 
Stock.

The Board of Directors of the Corporation may at any time, and from time 
to time, amend, suspend or terminate this 1995 Plan in whole or in part; 
provided, however, that neither the Board of Directors nor the Committee may 
materially  amend or modify the definition of Employee Participants, 
materially increase the benefits accruing to Participants, increase the number 
of shares of Common Stock reserved for purposes of this 1995 Plan, extend the 
term of this 1995 Plan, materially modify the requirements to be a Participant 
in this 1995 Plan, or otherwise modify this 1995 Plan in any way or manner 
requiring the approval of the Stockholders under the Code, or rules and 
regulations thereunder, or Section 16, if applicable to the Corporation, 
without Stockholder Approval and compliance with any applicable law, rules, or 
regulations.  Except as provided herein, no amendment, suspension or 
termination of this 1995 Plan may affect the rights of a Participant to whom a 
Stock Option has been granted without such Participant's consent.  The 
Committee is specifically authorized to convert, in its discretion, the 
unexercised portion of any 1995 Plan ISO granted to an Employee Participant to 
a Non-qualified Option at any time prior to the exercise, in full, of such 
1995 Plan ISO.  If there shall be any change in the Common Stock or to any 
Stock Option granted under this 1995 Plan through merger, consolidation, 
reorganization, recapitalization, stock dividend, stock split or other change 
in the corporate structure of the Corporation, appropriate adjustments may be 
made by the Committee (or if the Corporation is not the surviving corporation 
in any such transaction, the Board of Directors of the surviving corporation, 
or its designee) in the aggregate number and kind of shares subject to this 
1995 Plan, and the number and kind of shares and the price per share subject 
to outstanding options, provided that such adjustment does not affect the 
qualification of any 1995 Plan ISO as an Incentive Stock Option.  In 
connection with the foregoing, the Committee may issue new Stock Options in 
exchange for outstanding Stock Options.

Section VI.  Shares of Stock Subject to the Plan.

 The number of shares of Common Stock that may be the subject of awards 
under this 1995 Plan shall not exceed an aggregate of 550,000 shares.  Shares 
to be delivered under this 1995 Plan may be either authorized but unissued 
shares of Common Stock or treasury shares.  Any shares subject to an option 
hereunder which for any reason terminates, is cancelled or otherwise expires 
unexercised, and any shares reacquired by the Corporation due to restrictions 
imposed on the shares, shares returned because payment is made hereunder in 
stock of equivalent value rather than in cash, and/or shares reacquired from a 
recipient for any other reason shall, at such time, no longer count towards 
the aggregate number of shares which have been the subject of Stock Options 
issued hereunder, and such number of shares shall be subject to further awards 
under this 1995 Plan, provided, first, that the total number of shares then 
eligible for award under this 1995 Plan may not exceed the total specified in 
the first sentence of this Section VI, and second, that the number of shares 
subject to further awards shall not be increased in any way that would cause 
this 1995 Plan or any Stock Option to not comply with Section 16, if 
applicable to the Corporation.

Section VII.  Effective Date and Term of this Plan.
Provided there is Stockholder Approval on or before June 28, 1996, the 
effective date of this 1995 Plan is June 28, 1995 (the "Effective Date") and 
awards under this 1995 Plan may be made for a period of ten years commencing 
on the Effective Date.  The period during which a Stock Option may be 
exercised may extend beyond that time as provided herein.

Date of Approval by Board of Directors:	June 28, 1995
Date of Approval by the Stockholders:	March 15, 1996