MALLINCKRODT GROUP INC
424B2, 1995-09-18
PHARMACEUTICAL PREPARATIONS
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<PAGE>
          PROSPECTUS SUPPLEMENT TO PROSPECTUS DATED SEPTEMBER 8, 1995
   [LOGO]                         $100,000,000
                            MALLINCKRODT GROUP INC.
                       6.75% NOTES DUE SEPTEMBER 15, 2005
                              --------------------

    Interest  on the 6.75% Notes  due September 15, 2005  is payable on March 15
and September 15 of each year, commencing  March 15, 1996. The Notes may not  be
redeemed  prior  to  maturity and  do  not  provide for  any  sinking  fund. See
"Description of the Notes".

    The Notes will be represented by a global security registered in the name of
The Depository Trust Company, which will act as Depositary. Beneficial interests
in the global security will be shown on, and transfers thereof will be  effected
only   through,  records   maintained  by   the  Depositary   (with  respect  to
participants'  interests)   and  its   participants.  Except   in  the   limited
circumstances described herein, Notes in definitive form will not be issued. See
"Description of the Notes--Book-Entry Procedures".

    The  Notes  will be  issued  only in  denominations  of $1,000  and integral
multiples thereof.  Settlement  for  the  Notes  will  be  made  in  immediately
available funds. The Notes will trade in The Depository Trust Company's Same-Day
Funds Settlement System until maturity, and secondary market trading activity in
the  Notes will therefore settle in immediately available funds. All payments of
principal of  and  interest  on  the  Notes will  be  made  by  the  Company  in
immediately  available funds or the equivalent.  See "Description of the Notes--
Same-Day Settlement and Payment".
                           --------------------------

  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  SUPPLEMENT  OR  THE  PROSPECTUS  TO  WHICH  IT
           RELATES. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL
                                    OFFENSE.
                           --------------------------

<TABLE>
<CAPTION>
                                INITIAL PUBLIC
                                   OFFERING       UNDERWRITING      PROCEEDS TO
                                   PRICE(1)        DISCOUNT(2)     COMPANY(1)(3)
                                ---------------  ---------------  ---------------
<S>                             <C>              <C>              <C>
Per Note......................      99.955%          0.650%           99.305%
Total.........................    $99,955,000       $650,000        $99,305,000
<FN>
------------
(1)  Plus accrued interest, if any, from September 15, 1995.

(2)  The Company  has  agreed  to indemnify  the  Underwriters  against  certain
     liabilities, including liabilities under the Securities Act of 1933.

(3)  Before deducting estimated expenses of $250,000 payable by the Company.
</TABLE>

                           --------------------------

    The  Notes  offered hereby  are offered  severally  by the  Underwriters, as
specified herein, subject to receipt and acceptance by them and subject to their
right to reject any  order in whole or  in part. It is  expected that the  Notes
will be ready for delivery in book-entry form only through the facilities of The
Depository  Trust Company, New York,  New York, on or  about September 20, 1995,
against payment therefor in immediately available funds.

GOLDMAN, SACHS & CO.                                 J.P. MORGAN SECURITIES INC.
    CHASE SECURITIES, INC.  CITICORP SECURITIES, INC.  FIRST CHICAGO CAPITAL
                                                           MARKETS, INC.
                           --------------------------

         The date of this Prospectus Supplement is September 15, 1995.
<PAGE>
IN  CONNECTION  WITH THIS  OFFERING, THE  UNDERWRITERS  MAY OVERALLOT  OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE  MARKET PRICE OF THE NOTES  OFFERED
HEREBY  AT A LEVEL ABOVE THAT WHICH  MIGHT OTHERWISE PREVAIL IN THE OPEN MARKET.
SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
                            ------------------------

                                  THE COMPANY

    ALL REFERENCES TO YEARS ARE TO  FISCAL YEARS ENDED JUNE 30 UNLESS  OTHERWISE
STATED.

    Mallinckrodt  Group Inc. (the  "Company") is a  St. Louis-based company with
1995 net sales  of $2.2 billion.  The Company provides  human and animal  health
products    and   specialty   chemicals   through   its   three   international,
technology-based   operating   subsidiaries:   Mallinckrodt   Chemical,    Inc.,
Mallinckrodt  Medical, Inc.  and Mallinckrodt  Veterinary, Inc.  The Company has
approximately 10,300 employees. The Company's Common Stock is traded on the  New
York Stock Exchange under the ticker symbol MKG.

    Mallinckrodt  Chemical is  a producer of  specialty pharmaceutical chemicals
and 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  provides  technologically  advanced,  cost-effective
products and  services  in  five  medical  specialties:  radiology;  cardiology;
nuclear   medicine;  anesthesiology;  and  critical  care.  The  Company  has  a
leadership position in many of these markets.

    Mallinckrodt Veterinary  is one  of the  world's leading  animal health  and
nutrition  companies with  approximately 1,000  products sold  in more  than 100
countries. Products  include pharmaceuticals,  livestock and  poultry  vaccines,
pesticides, mineral feed ingredients, bacterial and fungal infection treatments,
surgical supplies, and anesthetics.

    The  Company's corporate headquarters is  located at 7733 Forsyth Boulevard,
St. Louis, MO 63105-1820, and its telephone number is: (314) 854-5200.

RECENT DEVELOPMENTS

  RESULTS OF OPERATIONS

    EARNINGS.  In the fourth quarter of 1995, the Company recorded earnings from
continuing operations of $61 million, or $.78 per share, up 18 percent  compared
with $51 million, or $.66 per share, in the corresponding period of 1994, before
a  fourth  quarter  1994  restructuring  charge  relating  to  its  medical  and
veterinary businesses. Net earnings (after losses from discontinued  operations)
for  the fourth quarter  of 1995 were  $60 million, or  $.76 per share, compared
with a $.12 per share loss during the corresponding period in 1994. For the year
ended June 30, 1995, earnings from  continuing operations were $184 million,  or
$2.37  per share, compared  to $107 million,  or $1.38 per  share, for the prior
year. These current year per share earnings were up 13 percent, excluding a 1994
restructuring  charge  and  minor  prior  year  non-recurring  adjustments.  Net
earnings (after losses from discontinued operations) for 1995 were $180 million,
or  $2.32 per share, up  74 percent from last year's  $104 million, or $1.33 per
share.

    SALES.  Net sales for the fourth quarter of 1995 were $639 million, compared
with $542  million  in the  corresponding  period of  1994,  an increase  of  18
percent.  Net sales for 1995 rose 14  percent to a record $2.2 billion, compared
with $1.9 billion reported in 1994.

                                USE OF PROCEEDS

    The net proceeds to be received by the Company from the issuance and sale of
the Notes  offered  hereby  are  expected  to  be  used  to  reduce  outstanding
commercial  paper and for other general  corporate purposes. On August 31, 1995,
the Company had approximately $195 million of commercial paper outstanding, with
a weighted average maturity of 18  days and bearing a weighted average  interest
rate of approximately 6.11% per annum. See "Underwriting".

                                      S-2
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA

    The  following table sets  forth historical data  for the periods indicated.
The selected consolidated  financial data of  the Company for  each of the  five
years  during the period ended June 30, 1995, have been derived from the audited
consolidated financial statements of the Company  which were audited by Ernst  &
Young LLP, independent auditors. The selected financial data with respect to the
four  years  ended  June  30,  1994  should  be  read  in  conjunction  with the
consolidated financial statements contained in  the Company's Annual Reports  on
Form 10-K for the years ended June 30, 1991 through 1994. The selected financial
data  for the year  ended June 30, 1995  should be read  in conjunction with the
consolidated financial statements contained in the Company's report on Form 8-K,
dated September 8, 1995. The Company's Annual  Report on Form 10-K for the  year
ended  June 30, 1994  and the Company's  report on Form  8-K, dated September 8,
1995, are incorporated herein by reference.

<TABLE>
<CAPTION>
                                                                   YEARS ENDED JUNE 30,
                                                 ---------------------------------------------------------
                                                   1995       1994(3)     1993(4)     1992(5)      1991
                                                 ---------   ---------   ---------   ---------   ---------
                                                      (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
  <S>                                            <C>         <C>         <C>         <C>         <C>
  OPERATIONS STATEMENT DATA:
    Net sales..................................  $ 2,212.1   $ 1,940.1   $ 1,796.3   $ 1,702.9   $ 1,633.9
    Operating costs and expenses:
      Cost of goods sold.......................    1,215.2     1,037.3       970.6       915.6       910.0
      Selling, administrative and general
       expenses................................      577.3       522.0       511.2       480.3       457.4
      Research and development expenses........       97.8        95.3        95.3        90.5        80.8
      Restructuring charge.....................                   93.9       334.1
      Other operating (income) expense, net....       (7.1)       (1.5)       (5.9)       (9.0)        1.1
                                                 ---------   ---------   ---------   ---------   ---------
                                                   1,883.2     1,747.0     1,905.3     1,477.4     1,449.3
                                                 ---------   ---------   ---------   ---------   ---------
    Operating earnings (loss)..................      328.9       193.1      (109.0)      225.5       184.6
    Equity in pre-tax earnings of joint
     venture...................................       25.3        18.5        10.6         1.6
    Interest and other nonoperating income
     (expense), net............................       (4.2)        (.4)        2.6        15.3        11.4
    Interest expense...........................      (55.4)      (39.8)      (37.3)      (39.6)      (42.7)
                                                 ---------   ---------   ---------   ---------   ---------
    Earnings (loss) from continuing operations
     before income taxes.......................      294.6       171.4      (133.1)      202.8       153.3
    Income tax provision (benefit).............      110.5        64.0       (19.3)       74.0        56.1
                                                 ---------   ---------   ---------   ---------   ---------
    Earnings (loss) from continuing
     operations................................      184.1       107.4      (113.8)      128.8        97.2
    Earnings (loss) from discontinued
     operations(1).............................       (3.8)       (3.6)       (6.0)       (1.3)       (9.0)
    Cumulative effect of accounting changes....                              (80.6)
                                                 ---------   ---------   ---------   ---------   ---------
    Net earnings (loss)........................      180.3       103.8      (200.4)      127.5        88.2
    Preferred stock dividends..................        (.4)        (.4)        (.4)        (.4)        (.4)
                                                 ---------   ---------   ---------   ---------   ---------
    Available for common shareholders..........  $   179.9   $   103.4   $  (200.8)  $   127.1   $    87.8
                                                 ---------   ---------   ---------   ---------   ---------
                                                 ---------   ---------   ---------   ---------   ---------
    Per Common Share Data(2)
    Earnings (loss) from continuing
     operations................................  $    2.37   $    1.38   $   (1.48)  $    1.65   $    1.37
    Net earnings (loss)........................       2.32        1.33       (2.60)       1.63        1.24
    Weighted average common shares (in
     millions).................................       77.5        77.6        77.4        77.8        70.6
  BALANCE SHEET DATA:
    Working capital............................  $   271.8   $   261.3   $   203.7   $   351.6   $   409.0
    Total assets...............................    2,720.6     2,433.5     2,177.6     2,050.8     2,250.2
    Total debt.................................      699.0       669.8       617.0       373.7       643.4
    Shareholders' equity.......................    1,171.5     1,015.9       910.5     1,224.2     1,084.2
  CASH FLOW DATA:
    Capital expenditures.......................  $   160.8   $   172.3   $   188.3   $   150.4   $   123.4
    Depreciation and amortization..............      125.0       104.6        96.1        89.3        86.6
    Cash provided by operations................      284.5       227.3       136.6        24.6       165.1
<FN>
---------------

(1)  The discontinued  operations  charges for  1995,  1994 and  1993  primarily
     included  environmental and related litigation  costs related to operations
     previously disposed. The results for 1992 included a nonrecurring after-tax
     gain of $.3  million, from net  effects related  to sales of  stock of  IMC
     Global Inc. ("IMC"), formerly a wholly-owned subsidiary of the Company. The
     results for
</TABLE>

                                              (FOOTNOTES CONTINUED ON NEXT PAGE)

                                      S-3
<PAGE>
<TABLE>
<S>  <C>
     1991  included nonrecurring after-tax  charges of $2.8  million or $.04 per
     share,   also   from    net   effects    related   to    the   IMC    stock
     sales.  Results for 1992  and 1991 also included  after-tax charges of $1.3
     million,  or  $.02  per  share;  and  $6.2  million,  or  $.09  per  share;
     respectively,  for environmental and litigation costs related to operations
     previously sold.

(2)  Presented on a  primary per  common share  basis adjusted  for the  3-for-1
     stock split in November 1991.

(3)  Results  for 1994 included restructuring charges aggregating $93.9 million,
     $58.8 million  after taxes,  or $.76  per share.  Pre-tax charges  in  1994
     included  in  Mallinckrodt  Medical and  Mallinckrodt  Veterinary operating
     earnings were $73.9 million and $20.0 million, respectively. The income tax
     provision for 1994 included favorable adjustments of $3.0 million, or  $.04
     per share from U.S. and foreign tax law changes.

(4)  Results  for 1993  included restructuring charges  totaling $334.1 million,
     $242.2 million after taxes, or $3.13 a share, and charges of $5.5  million,
     $3.4  million after  taxes, or  $.04 a  share, from  executive resignations
     resulting  from  the  performance  of  Mallinckrodt  Veterinary.  The   net
     incremental   charges   for  FAS   No.   106  "Employers'   Accounting  for
     Postretirement Benefits Other Than Pensions,"  FAS No. 109 "Accounting  for
     Income  Taxes" and  FAS No.  112 "Employers'  Accounting for Postemployment
     Benefits" amounted to  $8.5 million, $3.8  million after taxes,  or $.05  a
     share.

(5)  Results  for 1992 included an after-tax charge of $2.4 million, or $.03 per
     share related to the  formation of Tastemaker,  the flavors joint  venture,
     and  an after-tax  charge of  $3.0 million,  or $.04  per share  related to
     technical  manufacturing  control  problems  at  Mallinckrodt  Veterinary's
     Kansas  City, Kansas  manufacturing facility. These  charges were partially
     offset by an after-tax gain of $6.7  million, or $.08 per share from  sales
     of investments.
</TABLE>

                            DESCRIPTION OF THE NOTES

    The  Notes 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"). The following  summaries
of certain provisions of the Indenture and of the Notes offered hereby (referred
to  in  the accompanying  Prospectus as  "Securities" and  "Offered Securities")
supplement, and to the extent inconsistent therewith replace, the description of
the general terms and provisions of the Securities set forth in the accompanying
Prospectus, to  which  description  reference  is  hereby  made.  The  following
summaries  do not purport  to be complete  and are subject  to, and qualified in
their entirety by reference to, all  the provisions of the Indenture,  including
the  definition therein of  certain terms. As  used in this  "Description of the
Notes,"  unless  the  context  indicates  otherwise,  the  "Company"  refers  to
Mallinckrodt Group Inc. and does not include its subsidiaries.

GENERAL

    The  Notes will be  unsecured and unsubordinated  obligations of the Company
and will rank  on a  parity on  right of payment  with all  other unsecured  and
unsubordinated obligations of the Company.

    The  Notes will  be limited to  $100,000,000 aggregate  principal amount and
will mature on September 15, 2005. The Notes will bear interest at the rate  per
annum  shown on the cover page of  this Prospectus Supplement from September 15,
1995 or from the most  recent date to which interest  has been paid or  provided
for,  payable  semi-annually on  March 15  and September  15 (each  an "Interest
Payment Date") of each year, commencing March 15, 1996, to the persons in  whose
names  such Notes are registered at the close of business on the preceding March
1 and September 1 (each a  "Regular Record Date"), respectively. The Notes  will
be  issued  in fully  registered form  only  in the  denomination of  $1,000 and
integral multiples thereof.

    The principal of and  interest on the  Notes will be  payable and the  Notes
will be transferable at the corporate trust office of the Trustee in the Borough
of Manhattan, The City of New York.

    The  Notes are not redeemable  by the Company prior  to maturity and are not
entitled to any sinking fund.

    The covenants contained in  the Indenture and the  Notes do 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.

                                      S-4
<PAGE>
BOOK-ENTRY PROCEDURES

    The Notes will be issued initially in the form of a fully registered  global
security  (the "Global Security") which will be deposited with, or on behalf of,
The Depository  Trust  Company,  New  York, New  York  (the  "Depositary"),  and
registered  in the name of the Depositary's  nominee. Except as set forth in the
last paragraph of this section, the  Notes will not be issuable in  certificated
form.

    The  Depositary has advised the Company and the Underwriters as follows: The
Depositary is a limited-purpose  trust company organized under  the laws of  the
State  of  New  York,  a  member of  the  Federal  Reserve  System,  a "clearing
corporation" within the meaning of the  New York Uniform Commercial Code, and  a
"clearing  agency" registered pursuant  to the provisions of  Section 17A of the
Securities Exchange Act of 1934, as amended. The Depositary was created to  hold
securities of its participants and to facilitate the clearance and settlement of
securities  transactions  among  its  participants  in  such  securities through
electronic  book-entry  changes  in   accounts  of  the  participants,   thereby
eliminating  the  need for  physical  movement of  securities  certificates. The
Depositary's participants include securities brokers and dealers (including  the
Underwriters),  banks, trust companies, clearing  corporations and certain other
organizations, some of which (and/or their representatives) own the  Depositary.
Access  to the Depositary's book-entry system  is also available to others, such
as banks, brokers, dealers and trust companies that clear through or maintain  a
custodial relationship with a participant, either directly or indirectly.

    Upon the issuance of the Global Security, the Depositary or its nominee will
credit  the accounts  of persons  holding a  beneficial interest  in such Global
Security with the respective principal amounts of the Notes represented by  such
Global  Security.  Such  accounts  shall  be  designated  by  the  Underwriters.
Ownership of beneficial  interests in  the Global  Security will  be limited  to
persons  that have accounts with the  Depositary or its nominee ("participants")
or persons that may hold interests through participants. Ownership of beneficial
interests in such Global  Security will be  shown on, and  the transfer of  that
ownership will be effected only through, records maintained by the Depositary or
its  nominee (with respect to  interests of participants) and  on the records of
participants (with respect to interests of persons other than participants). The
laws of some states require that certain purchasers of securities take  physical
delivery  of such securities  in definitive form. Such  limitation and such laws
may impair the ability to transfer beneficial interests in the Global Security.

    So long as the Depositary, or its  nominee, is the registered owner of  such
Global  Security, the Depositary  or such nominee,  as the case  may be, will be
considered the sole  owner or  holder of the  Notes represented  by such  Global
Security  for all purposes under the Indenture. Except as provided below, owners
of beneficial interests  in the  Global Security will  not be  entitled to  have
Notes  represented by such  Global Security registered in  their names, will not
receive or be entitled to receive physical delivery of such Notes in  definitive
form  and  will  not be  considered  the  owners or  holders  thereof  under the
Indenture.

    Payment of principal of and any premium and interest on Notes registered  in
the  name of the Depositary or its nominee will be made to the Depositary or its
nominee, as the  case may be,  as the  registered owner of  the Global  Security
representing such Notes. None of the Company, the Trustee, the Underwriters, any
Paying   Agent  or  the  Security  Registrar   for  such  Notes  will  have  any
responsibility or  liability  for any  aspect  of  the records  relating  to  or
payments  made  on  account  of beneficial  ownership  interests  of  the Global
Security for such Notes or for maintaining, supervising or receiving any records
relating to such beneficial ownership interests.

    The Company expects that the Depositary or its nominee, as the case may  be,
upon  receipt  of any  payment of  principal, premium  or interest,  will credit
immediately participants'  accounts with  payments in  amounts proportionate  to
their  respective beneficial  interests in  the principal  amount of  the Global
Security for  such Notes  as  shown on  the records  of  the Depositary  or  its
nominee.  The Company  also expects that  payments by participants  to owners of
beneficial interests in such Global Security held

                                      S-5
<PAGE>
through  such  participants  will  be  governed  by  standing  instructions  and
customary practices, as is now the case with securities held for the accounts of
customers  registered in "street  name," and will be  the responsibility of such
participants.

    If the  Depositary  is  at any  time  unwilling  or unable  to  continue  as
depositary  and a successor depositary is not appointed by the Company within 90
days, the Company will issue Notes in definitive form in exchange for the Global
Security representing such Notes. In addition,  the Company may at any time  and
in its sole discretion determine not to have the Notes represented by the Global
Security  and, in such event, the Company will issue Notes in definitive form in
exchange for  the  Global Security  representing  such Notes.  Further,  if  the
Company  so  specifies with  respect  to the  Notes,  an owner  of  a beneficial
interest in the Global Security may, on terms acceptable to the Company and  the
Depositary,  receive Notes in definitive form. In any such instance, an owner of
a beneficial  interest in  the  Global Security  will  be entitled  to  physical
delivery  in  definitive  form  of  Notes  equal  in  principal  amount  to such
beneficial interest and  to have  such Notes registered  in its  name. Notes  so
issued in definitive form will be issued in denominations of $1,000 and integral
multiples thereof.

SAME-DAY SETTLEMENT AND PAYMENT

    Settlement  for the  Notes will be  made by the  Underwriters in immediately
available funds.  All payment  of principal  and interest  will be  made by  the
Company  in  immediately  available funds  or  the  equivalent, so  long  as the
Depositary continues to make its  Same-Day Funds Settlement System available  to
the Company.

    Secondary  trading in long-term notes and debentures of corporate issuers is
generally settled in  clearinghouse or  next-day funds. In  contrast, the  Notes
will  trade in the Depositary's Same-Day  Funds Settlement System, and secondary
market trading  activity  in  the  Notes  will  therefore  be  required  by  the
Depositary  to settle in immediately available  funds. No assurance can be given
as to  the effect,  if any,  of  settlement in  immediately available  funds  on
trading activity in the Notes.

                                      S-6
<PAGE>
                                  UNDERWRITING

    Subject  to the terms and conditions set forth in the Underwriting Agreement
dated as of September  15, 1995 and  the related Pricing  Agreement dated as  of
September  15, 1995, the Company has agreed  to sell to each of the Underwriters
named below, and each of the Underwriters has severally agreed to purchase,  the
principal amount of Notes set forth opposite its name below.

<TABLE>
<CAPTION>
                                           PRINCIPAL
                                           AMOUNT OF
              UNDERWRITER                    NOTES
----------------------------------------  ------------
<S>                                       <C>
Goldman, Sachs & Co.....................  $ 50,000,000
J.P. Morgan Securities Inc..............    20,000,000
Chase Securities, Inc...................    10,000,000
Citicorp Securities, Inc................    10,000,000
First Chicago Capital Markets, Inc......    10,000,000
                                          ------------
    Total...............................  $100,000,000
                                          ------------
                                          ------------
</TABLE>

    Under the terms of the Underwriting Agreement and the Pricing Agreement, the
Underwriters  are committed  to take and  pay for all  of the Notes,  if any are
taken.

    The Company has been advised by the Underwriters that they propose to  offer
the  Notes in part directly  to the public at  the initial public offering price
set forth on the cover page of this Prospectus Supplement and in part to certain
securities dealers at such  prices less a concession  of 0.40% of the  principal
amount of the Notes. The Underwriters may allow, and such dealers may reallow, a
concession  not to exceed 0.25% of the  principal amount of the Notes to certain
brokers and dealers. After the  Notes are released for  sale to the public,  the
offering  price and other selling  terms may from time to  time be varied by the
Underwriters.

    The Notes are a new issue of securities with no established trading  market.
The Company has been advised by the Underwriters that the Underwriters presently
intend  to make a  market in the  Notes, although the  Underwriters are under no
obligation to do so and the  Underwriters may discontinue such market making  at
any  time in their sole discretion. Accordingly, no assurance can be given as to
the liquidity of, or the trading markets for, the Notes.

    Settlement for the Notes will be made in immediately available funds and all
secondary trading in the Notes will  settle in immediately available funds.  See
"Description of the Notes--Same-Day Settlement and Payment".

    In  the  ordinary course  of their  respective businesses,  the Underwriters
and/or their respective affiliates have engaged,  and may in the future  engage,
in  commercial banking and investment banking  transactions with the Company and
affiliates of the Company.  Goldman Sachs Money Markets,  L.P., an affiliate  of
Goldman,  Sachs & Co., and J.P. Morgan Securities Inc. also act as dealers under
the Company's commercial paper program, and  from time to time they may  acquire
and  hold the Company's commercial paper. The First Chicago Trust Company of New
York, an affiliate of First Chicago Capital Markets, Inc., is the transfer agent
for the Company's common stock.

    The Company has agreed to  indemnify each Underwriter against certain  civil
liabilities, including liabilities under the Securities Act of 1933.

                                      S-7
<PAGE>
   [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 September 8, 1995.
<PAGE>
                             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, 1994, December 31, 1994 and March 31, 1995.

        (3)  The Company's  current reports on  Form 8-K dated  August 15, 1994,
    September 13, 1994, September 21, 1994, October 19, 1994, October 28,  1994,
    November 3, 1994, January 4, 1995, March 1, 1995 and September 8, 1995.

        (4)  The Company's proxy statement dated  September 8, 1995, relating to
    the 1995 Annual Meeting of Stockholders.

    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.

                                       2
<PAGE>
                                  THE COMPANY

    Mallinckrodt Group Inc. (the  "Company") is a  St. Louis-based company  with
1995  net sales of  $2.2 billion. The  Company provides human  and animal health
products   and   specialty   chemicals   through   its   three    international,
technology-based    operating   subsidiaries:   Mallinckrodt   Chemical,   Inc.,
Mallinckrodt Medical, Inc.  and Mallinckrodt  Veterinary, Inc.  The Company  has
approximately  10,300 employees. The Company's Common Stock is traded on the New
York Stock Exchange under the ticker symbol MKG.

    Mallinckrodt Chemical is  a producer of  specialty pharmaceutical  chemicals
and  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  provides  technologically  advanced,   cost-effective
products  and  services  in  five  medical  specialties:  radiology; cardiology;
nuclear  medicine;  anesthesiology;  and  critical  care.  The  Company  has   a
leadership position in many of these markets.

    Mallinckrodt  Veterinary is  one of  the world's  leading animal  health and
nutrition companies  with approximately  1,000 products  sold in  more than  100
countries.  Products  include pharmaceuticals,  livestock and  poultry vaccines,
pesticides, mineral feed ingredients, bacterial and fungal infection treatments,
surgical supplies, and anesthetics.

    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.

                                       3
<PAGE>
                                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

<TABLE>
<CAPTION>
                                                                          YEARS ENDED JUNE 30,
                                                    ----------------------------------------------------------------
                                                       1995         1994          1993         1992         1991
                                                       -----        -----     ------------     -----        -----
<S>                                                 <C>          <C>          <C>           <C>          <C>
Ratio of earnings to fixed charges................          5.3          4.0           (1)          4.9          4.0
<FN>
------------------

(1)  Earnings were inadequate to cover fixed charges for the year ended June 30,
     1993,  primarily due to restructuring charges recorded during the year. The
     coverage deficiency was approximately $140 million.
</TABLE>

    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

                                       4
<PAGE>
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

                                       5
<PAGE>
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

                                       6
<PAGE>
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)

                                       7
<PAGE>
    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

                                       8
<PAGE>
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

                                       9
<PAGE>
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

                                       10
<PAGE>
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.

                                       11
<PAGE>
    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 September 1,  1995, Mr.  Moskin
beneficially owned 7,353 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  and appearing  in its
Current Report on Form 8-K dated September  8, 1995 for the year ended June  30,
1995  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.

                                       12
<PAGE>
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    NO  PERSON  HAS BEEN  AUTHORIZED  TO GIVE  ANY  INFORMATION OR  TO  MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR  THE
PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON  AS HAVING BEEN  AUTHORIZED. THIS PROSPECTUS  SUPPLEMENT AND  THE
PROSPECTUS DO NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO
BUY  ANY  SECURITIES  OTHER THAN  THE  SECURITIES DESCRIBED  IN  THIS PROSPECTUS
SUPPLEMENT OR AN  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 PROSPECTUS  SUPPLEMENT OR THE  PROSPECTUS NOR ANY
SALE MADE HEREUNDER  OR THEREUNDER  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 OR THEREIN IS  CORRECT
AS OF ANY TIME SUBSEQUENT TO THE DATE OF SUCH INFORMATION.

                            ------------------------

                               TABLE OF CONTENTS

                             PROSPECTUS SUPPLEMENT

<TABLE>
<CAPTION>
                                                  PAGE
                                                ---------
<S>                                             <C>
The Company...................................        S-2
Use of Proceeds...............................        S-2
Selected Consolidated Financial Data..........        S-3
Description of the Notes......................        S-4
Underwriting..................................        S-7

                       PROSPECTUS
Available Information.........................          2
Incorporation of Certain Documents by
 Reference....................................          2
The Company...................................          3
Use of Proceeds...............................          4
Ratio of Earnings to Fixed Charges............          4
Description of the Securities.................          4
Plan of Distribution..........................         11
Legal Matters.................................         12
Experts.......................................         12
</TABLE>

                                  $100,000,000

                            MALLINCKRODT GROUP INC.

                                  6.75% NOTES
                             DUE SEPTEMBER 15, 2005

                             ---------------------
                                     [LOGO]

                             ---------------------

                              GOLDMAN, SACHS & CO.
                          J.P. MORGAN SECURITIES INC.
                             CHASE SECURITIES, INC.
                           CITICORP SECURITIES, INC.
                                 FIRST CHICAGO
                             CAPITAL MARKETS, INC.

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