LIFE TECHNOLOGIES INC
SC 13D/A, 1999-05-11
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934

                                (Amendment No. 5)

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

                             LIFE TECHNOLOGIES, INC.
                                (Name of Issuer)

COMMON STOCK, $.01 PAR VALUE PER SHARE                              532177201
   (Title of class of securities)                                (CUSIP number)

                            RICHARD A. WEINBERG, ESQ.
                        C/O ISP MANAGEMENT COMPANY, INC.
                                 1361 ALPS ROAD
                             WAYNE, NEW JERSEY 07470
                                 (973) 628-3000
            (Name, address and telephone number of person authorized
                     to receive notices and communications)

                                 WITH A COPY TO:

                             STEPHEN E. JACOBS, ESQ.
                           WEIL, GOTSHAL & MANGES LLP
                                767 FIFTH AVENUE
                          NEW YORK, NEW YORK 10153-0119
                                 (212) 310-8000

                                  MAY 10, 1999
             (Date of event which requires filing of this statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-(g), check the
following box. [ ]

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See ss. 240.13d-7 for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purposes of Section 18 of the Securities Exchange Act of
1934 (the "Act") or otherwise subject to the liabilities of that section of the
Act but shall be subject to all other provisions of the Act. (However, see the
Notes.)

                         (Continued on following pages)

                              (Page 1 of 38 Pages)

================================================================================



NY2:\457989\03\9TDX03!.DOC\47201.0001
<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 2 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON              ISP OPCO HOLDINGS INC.
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            OO
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                            0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                  3,384,600
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                       0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:             3,384,600
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                          3,384,600
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):    13.57%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------




<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 3 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             ISP INVESTMENTS INC.
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC, OO
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:              2,932,600
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:              452,000
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:         2,932,600
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:         452,000
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    3,384,600
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):    13.57%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 4 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             ISP IRELAND
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC, OO
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Ireland
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:              452,000
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                  0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:         452,000
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:             0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    452,000
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):    1.81%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 5 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON            INTERNATIONAL SPECIALTY
                   S.S. OR I.R.S. IDENTIFICATION NO.   PRODUCTS INC.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            OO
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    121,670
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                3,384,600
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               121,670
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:           3,384,600
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                        3,506,270
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):    14.06%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 6 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             BEAR, STEARNS & CO. INC.
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC, PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            DELAWARE
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                 335,405
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                92,000
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:            335,405
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:           92,000
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                       427,405
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     1.71%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 7 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             FREDERICK R. ADLER
                   S.S. OR I.R.S. IDENTIFICATION NO.    INTANGIBLE ASSET
                   OF ABOVE PERSON                      MANAGEMENT TRUST

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            NEW YORK
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    713,395
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                        0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               713,395
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:                   0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                          713,395
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     2.86%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------

<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 8 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON           THE COHEN REVOCABLE TRUST
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            California
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:               397,100
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                   0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:          397,100
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:              0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                     397,100
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):    1.59%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 9 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             A. CHANG
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            USA
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:              135,500
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                  0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:         135,500
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:             0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    135,500
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.54%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            IN
- ------------------ -------------------------------------------------------------




<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 10 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON            YORK CAPITAL MANAGEMENT,
                   S.S. OR I.R.S. IDENTIFICATION NO.     L.P.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:              78,700
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                 0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:         78,700
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:            0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    78,700
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.32%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            PN
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 11 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             DINAN MANAGEMENT, L.L.C.
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            New York
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:             78,700
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:        78,700
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                     78,700
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.32%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------

<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 12 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON            JGD MANAGEMENT CORP.
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            AF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                 23,100
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                    0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:            23,100
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:               0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                       23,100
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.09%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 13 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             YORK INVESTMENT LIMITED
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Bahamas
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                129,600
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                    0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:           129,600
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:               0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                      129,600
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.52%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 14 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             DINAN MANAGEMENT
                   S.S. OR I.R.S. IDENTIFICATION NO.    CORPORATION
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            AF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:            129,600
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:       129,600
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    129,600
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.52%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            CO
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 15 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             JAMES G. DINAN
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            AF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            USA
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                      0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:              231,400
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                 0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:         231,400
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                      231,400
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.93%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            IN
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 16 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             IDOYA PARTNERS
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                           WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            New York
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:            405,000
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:       405,000
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                    405,000
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     1.62%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            PN
- ------------------ -------------------------------------------------------------



<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 17 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON            PRESCOTT ASSOCIATES
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                           WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            New York
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                      0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:              331,650
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                 0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:         331,650
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                      331,650
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     1.33%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            PN
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 18 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             PRESCOTT INTERNATIONAL
                   S.S. OR I.R.S. IDENTIFICATION NO.    PARTNERS, L.P.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                           WC
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            Delaware
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                           0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                    19,950
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                      0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:               19,950
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                            19,950
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     0.08%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            PN
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 19 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON           THOMAS W. SMITH AS TRUSTEE
                   S.S. OR I.R.S. IDENTIFICATION NO.  FOR THE JACK McKENZIE
                   OF ABOVE PERSON                    TRUST UNDER AGREEMENT
                                                      DATED APRIL 12, 1992
- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            New York
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                        150
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                        0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                   150
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:                   0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                              150
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):   0.0006%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 20 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON           THOMAS W. SMITH AS TRUSTEE
                   S.S. OR I.R.S. IDENTIFICATION NO.  FOR THE LEO CARROLL
                   OF ABOVE PERSON                    WOLFENSOHN TRUST UNDER
                                                      AGREEMENT DATED
                                                      MARCH 9, 1994

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            New York
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                    150
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                    0
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:               150
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:               0
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                          150
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):   0.0006%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            OO
- ------------------ -------------------------------------------------------------

<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 21 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             THOMAS W. SMITH
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            PF, AF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            USA
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                     70,300
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:                  756,600
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                70,300
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:             756,600
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                          826,900
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     3.31%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            IN
- ------------------ -------------------------------------------------------------


<PAGE>
- -----------------------------------           ----------------------------------
CUSIP No. 532177201                    13D               Page 22 of 38 Pages
- -----------------------------------           ----------------------------------

- ------------------ -------------------------------------------------------------
        1          NAME OF REPORTING PERSON             THOMAS N. TRYFOROS
                   S.S. OR I.R.S. IDENTIFICATION NO.
                   OF ABOVE PERSON

- ------------------ -------------------------------------------------------------
        2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:     (a) [X]
                                                                         (b) [ ]
- ------------------ -------------------------------------------------------------
        3          SEC USE ONLY
- ------------------ -------------------------------------------------------------
        4          SOURCE OF FUNDS:                            AF
- ------------------ -------------------------------------------------------------
        5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                   PURSUANT TO ITEM 2(d) OR 2(e):                            [_]
- ------------------ -------------------------------------------------------------
        6          CITIZENSHIP OR PLACE OF ORGANIZATION:            USA
- --------------------------------------------------------------------------------
    NUMBER OF           7     SOLE VOTING POWER:                      0
      SHARES
                      ------- --------------------------------------------------
   BENEFICIALLY         8     SHARED VOTING POWER:              756,600
     OWNED BY
                      ------- --------------------------------------------------
       EACH             9     SOLE DISPOSITIVE POWER:                 0
    REPORTING
                      ------- --------------------------------------------------
   PERSON WITH          10    SHARED DISPOSITIVE POWER:         756,600
- ------------------ -------------------------------------------------------------
       11          AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING
                   PERSON:                                      756,600
- ------------------ -------------------------------------------------------------
       12          CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                   CERTAIN SHARES:                                           [_]
- ------------------ -------------------------------------------------------------
       13          PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):     3.03%
- ------------------ -------------------------------------------------------------
       14          TYPE OF REPORTING PERSON:            IN
- ------------------ -------------------------------------------------------------

<PAGE>
                  This Amendment No. 5 ("Amendment No. 5") amends the Statement
on Schedule 13D (the "Schedule 13D") filed on November 20, 1998, as amended by
Amendment No. 1 filed on November 30, 1998 ("Amendment No. 1"), Amendment No. 2
filed on December 2, 1998 ("Amendment No. 2"), Amendment No. 3 filed on December
21, 1998 ("Amendment No. 3"), and Amendment No. 4 filed on December 24, 1998
("Amendment No. 4"), by and on behalf of ISP Opco Holdings Inc. ("ISP Opco"),
ISP Investments Inc. ("ISP Investments"), International Specialty Products Inc.
("ISP"), ISP Ireland ("ISP Ireland" and, together with ISP Opco, ISP Investments
and ISP, the "ISP Group"), Bear, Stearns & Co. Inc. ("Bear, Stearns"), Frederick
R. Adler Intangible Asset Management Trust (the "Adler Trust"), The Cohen
Revocable Trust (the "Cohen Trust"), A. Chang ("Chang"), York Capital
Management, L.P. ("York Capital"), Dinan Management, L.L.C. ("Dinan
Management"), JGD Management Corp. ("JGD Management"), York Investment Limited
("York Investment"), Dinan Management Corporation ("DMC"), James G. Dinan
("JGD"), Idoya Partners ("Idoya"), Prescott Associates ("Prescott"), Prescott
International Partners, L.P. ("Prescott International"), Thomas W. Smith as
Trustee for the Jack McKenzie Trust Under Agreement Dated April 12, 1992 (the
"McKenzie Trust"), Thomas W. Smith as Trustee for the Leo Carroll Wolfensohn
Trust Under Agreement Dated March 9, 1994 (the "Wolfensohn Trust"), Thomas W.
Smith ("Smith") and Thomas N. Tryforos (collectively, the "Reporting Persons")
with respect to their ownership of common stock, par value $.01 per share (the
"Common Stock"), of Life Technologies, Inc. (the "Company"). Capitalized terms
used herein and not defined herein have the meanings ascribed thereto in the
Schedule 13D, as previously amended.

ITEM 3.           SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

                  Since the filing of Amendment No. 4, Bear, Stearns purchased
an aggregate of 9,790 Shares in its market-making account for total
consideration (including brokerage commissions) of $372,165.24 derived from
working capital of Bear, Stearns.

ITEM 5.           INTEREST IN SECURITIES OF THE ISSUER

                  As of the close of business on May 10, 1999, the Reporting
Persons beneficially owned (or are deemed, solely for purposes of Rule 13d-3, to
beneficially own), directly or indirectly, an aggregate of 6,237,970 Shares,
representing approximately 25.01% of the Common Stock outstanding (based on
24,944,867 shares of Common Stock believed by the Reporting Persons to be
outstanding as of March 5, 1999).

                  Bear, Stearns has the sole power to vote, direct the voting
of, dispose of and direct the disposition of 335,405 Shares. Bear, Stearns has
shared power to vote, direct the voting of, dispose of and direct the
disposition of 92,000 Shares held in discretionary accounts. Of the 427,405
Shares beneficially owned by Bear, Stearns, only 300,000 Shares that are owned
by Bear, Stearns are subject to the Group Agreement (as defined below in Item 6)
between Bear, Stearns and certain of the Reporting Persons. The remaining 35,405
Shares owned by Bear, Stearns are held in its market-making account and are not
subject to the Group Agreement. The 92,000 Shares beneficially owned by Bear,
Stearns in discretionary accounts are also not subject to the Group Agreement.

                  In the past 60 days, the Reporting Persons effected
transactions in Shares in open market transactions as set forth in Schedule A
hereto.


                                       23
<PAGE>
ITEM 6.           CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
                  RESPECT TO SECURITIES OF THE ISSUER

                  On May 10, 1999, certain of the Reporting Persons entered into
a letter agreement (the "Extension Agreement") pursuant to which such Reporting
Person agreed to extend through December 31, 1999 the provisions of the
respective Group Agreement(s) to which such Reporting Person is a party relating
to (i) selling or otherwise disposing of any Shares and (ii) entering into any
other contract, arrangement, understanding or relationship with any other
persons with respect to equity securities of the Company.

                  Except as set forth above, the response of the Reporting
Persons to this Item 6 as previously disclosed in Amendment No. 4 has not
changed.

ITEM 7.           MATERIAL TO BE FILED AS EXHIBITS

                  Form of Extension Agreement among the Reporting Persons with
respect to the filing of this Amendment No. 5.




             [The remainder of this page intentionally left blank.]









                                       24
<PAGE>
                                   SIGNATURES

                  After reasonable inquiry and to the best of their knowledge
and belief, the undersigned certify that the information set forth in this
Statement is true, complete and correct.

Dated:   May 11, 1999

                               ISP OPCO HOLDINGS INC.
                               ISP INVESTMENTS INC.
                               INTERNATIONAL SPECIALTY PRODUCTS INC.

                               By:  /s/ Susan B. Yoss
                                    --------------------------------------------
                                    Susan B. Yoss
                                    Vice President and Treasurer


                               ISP IRELAND

                               By:  /s/ Michael Greaves
                                    --------------------------------------------
                                    Michael Greaves
                                    Director


                               BEAR, STEARNS & CO. INC.

                               By:  /s/ Barry Cohen
                                    --------------------------------------------
                                    Barry Cohen
                                    Senior Managing Director

     
                               YORK CAPITAL MANAGEMENT, L.P.

                               By: DINAN MANAGEMENT, L.L.C., its General Partner

                                    By: /s/ James G. Dinan
                                        ----------------------------------------
                                        James G. Dinan
                                        President


                               DINAN MANAGEMENT, L.L.C.

                               By:  /s/ James G. Dinan
                                    --------------------------------------------
                                    James G. Dinan
                                    President


                                       25
<PAGE>
                               JGD MANAGEMENT CORP.
                               DINAN MANAGEMENT CORPORATION

                               By:  /s/ James G. Dinan
                                    --------------------------------------------
                                    James G. Dinan
                                    President


                               YORK INVESTMENT LIMITED

                               By:  /s/ Anthony L.M. Inder Reiden
                                    --------------------------------------------
                                    Anthony L.M. Inder Reiden
                                    Director


                               /s/ James G. Dinan
                               -------------------------------------------------
                               James G. Dinan


                               FREDERICK R. ADLER INTANGIBLE ASSET
                               MANAGEMENT TRUST

                               By:  /s/ Susan R. Chapman
                                    --------------------------------------------
                                    Susan R. Chapman
                                    Trustee


                               THE COHEN REVOCABLE TRUST

                               By:  /s/ S. Cohen
                                    --------------------------------------------
                                    S. Cohen
                                    Trustee


                               /s/ A. Chang
                               -------------------------------------------------
                               A. Chang


                               /s/ Thomas W. Smith
                               -------------------------------------------------
                               Thomas W. Smith


                               /s/ Thomas N. Tryforos
                               -------------------------------------------------
                               Thomas N. Tryforos


                                       26
<PAGE>
                               PRESCOTT INTERNATIONAL PARTNERS, L.P.

                               By:  /s/ Thomas W. Smith
                                    --------------------------------------------
                                    Thomas W. Smith
                                    General Partner


                               By:  /s/ Thomas N. Tryforos
                                    --------------------------------------------
                                    Thomas N. Tryforos
                                    General Partner


                               PRESCOTT ASSOCIATES

                               By:  /s/ Thomas W. Smith
                                    --------------------------------------------
                                    Thomas W. Smith
                                    General Partner


                               By:  /s/ Thomas N. Tryforos
                                    --------------------------------------------
                                    Thomas N. Tryforos
                                    General Partner


                               IDOYA PARTNERS

                               By:  /s/ Thomas W. Smith
                                    --------------------------------------------
                                    Thomas W. Smith
                                    General Partner


                               By:  /s/ Thomas N. Tryforos
                                    --------------------------------------------
                                    Thomas N. Tryforos
                                    General Partner


                               JACK MCKENZIE TRUST U/A DATED
                               APRIL 12, 1992

                               By:  /s/ Thomas W. Smith
                                    --------------------------------------------
                                    Thomas W. Smith
                                    Trustee


                                       27
<PAGE>
                               LEO CARROLL WOLFENSOHN TRUST U/A
                               DATED MARCH 9, 1994

                               By:  /s/ Thomas W. Smith
                                    --------------------------------------------
                                    Thomas W. Smith
                                    Trustee












                                       28
<PAGE>
                                   SCHEDULE A

                  The following schedule sets forth information with respect to
each purchase of Shares which was effectuated by the Reporting Persons during
the past 60 days. All transactions were effectuated in the open market through a
broker.

<TABLE>
<CAPTION>
                                      ISP INVESTMENTS INC. (directly and through
                                             ISP Investment Grantor Trust)
                                             -----------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------
<S>                                  <C>                                                       <C>
                                                           None


                                         INTERNATIONAL SPECIALTY PRODUCTS INC.
                                         -------------------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                      ISP IRELAND
                                                      -----------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                BEAR, STEARNS & CO. INC.
                                                ------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

        3/12/99                                             150                                       34-1/4
        3/12/99                                             150                                       34-1/4
        3/31/99                                          12,590                                       38.3971
        3/31/99                                            (600)                                      38
        3/31/99                                          (2,000)                                      38
        3/31/99                                          (2,500)                                      38-3/8
        3/31/99                                          (2,500)                                      38-5/8
        3/31/99                                          (5,000)                                      38-5/8
        4/13/99                                              30                                       36
        4/13/99                                             100                                       36



                                       29
<PAGE>
                                FREDERICK R. ADLER INTANGIBLE ASSET MANAGEMENT TRUST
                                ----------------------------------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                               THE COHEN REVOCABLE TRUST
                                               -------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                        A. CHANG
                                                        --------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                             YORK CAPITAL MANAGEMENT, L.P.
                                             -----------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                YORK INVESTMENT LIMITED
                                                -----------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                  JGD MANAGEMENT CORP.
                                                  --------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None



                                       30
<PAGE>
                                                    IDOYA PARTNERS
                                                    --------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                  PRESCOTT ASSOCIATES
                                                  -------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                         PRESCOTT INTERNATIONAL PARTNERS, L.P.
                                         -------------------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                        THOMAS W. SMITH AS TRUSTEE FOR THE JACK
                                             McKENZIE TRUST UNDER AGREEMENT
                                                  DATED APRIL 12, 1992
                                                  --------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                         THOMAS W. SMITH AS TRUSTEE FOR THE LEO
                                             CARROLL WOLFENSOHN TRUST UNDER
                                            AGREEMENT DATED APRIL 12, 1992
                                            ------------------------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None


                                                    THOMAS W. SMITH
                                                    ---------------

                                                       Number of
          Date                                  Shares Purchased (Sold)                            Price Per Share
          ----                                  -----------------------                            ---------------

                                                           None

</TABLE>
                                       31
<PAGE>
                                  EXHIBIT INDEX

Exhibit No.                           Document                          Page No.
- -----------                           --------                          --------

    1                Form of Extension Agreement among the
                     Reporting Persons with respect to the filing
                     of this Amendment No. 5








                                       32

                                                                     Exhibit 1


                                   AGREEMENT

                  THIS AGREEMENT ("Agreement"), dated as of May 10, 1999, is
among International Specialty Products Inc. and the other parties signatory
hereto (collectively, the "Investors") with respect to shares of common stock
(the "Shares") of Life Technologies, Inc., a Delaware corporation (the
"Company).

                                    RECITALS:

                  WHEREAS, as of the date hereof, each of the parties hereto
owns or controls, directly or indirectly, that number of Shares set forth after
its name on the signature pages to this Agreement;

                  WHEREAS, each of the parties hereto is party to one or more
agreements with certain of the Investors with respect to Shares of the Company,
which agreements have been described in certain Schedule 13D filings previously
made by the applicable Investors (collectively, the "Previous Agreements"); and

                  WHEREAS, the parties hereto desire to extend the term of each
of the Previous Agreements.

                  NOW, THEREFORE, for good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, the parties hereto,
intending to be legally bound hereby, agree as follows:

1. Each of the Previous Agreements is hereby amended such that each of the
covenants and agreements contained therein subject to expiration shall remain in
effect and be binding on the parties thereto through and until December 31,
1999.

2. Each of the Previous Agreements, as amended hereby, shall remain in full
force and effect.

3. This Agreement sets forth the entire understanding of the parties hereto with
respect to the subject matter hereof. This Agreement may be executed in
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

                           [signature pages to follow]




                                       33
<PAGE>
                  IN WITNESS WHEREOF, the undersigned have duly executed this 
Agreement as of the date written above.


                               ------------------------------------------------
                               Thomas W. Smith
     
                               Shares owned: 70,000
                               Shares controlled: 826,900



                               PRESCOTT INTERNATIONAL PARTNERS, L.P.

                               By:
                                   --------------------------------------------
                                        Thomas W. Smith, General Partner



                               By:
                                   --------------------------------------------
                                        Thomas N. Tryforos, General Partner

                               Shares owned: 19, 950



                               PRESCOTT ASSOCIATES

                               By:
                                   --------------------------------------------
                                        Thomas W. Smith, General Partner



                               By:
                                   --------------------------------------------
                                        Thomas N. Tryforos, General Partner

                               Shares owned: 331,650



                                       34
<PAGE>
                               IDOYA PARTNERS

                               By:
                                   --------------------------------------------
                                        Thomas W. Smith, General Partner



                               By:
                                   --------------------------------------------
                                        Thomas N. Tryforos, General Partner

                               Shares owned: 405,000



                               JACK MCKENZIE TRUST UNDER AGREEMENT DATED 
                               APRIL 12, 1992

                               By:
                                   --------------------------------------------
                                        Thomas W. Smith, as Trustee

                               Shares owned: 150
     


                               LEO CARROLL WOLFENSOHN TRUST UNDER AGREEMENT 
                               DATED MARCH 9, 1994

                               By:
                                   --------------------------------------------
                                        Thomas W. Smith, as Trustee

                               Shares owned: 150



                                       35
<PAGE>
                               THE COHEN REVOCABLE TRUST

                               By:
                                   --------------------------------------------
                                    Name:
                                    Title:

                               Shares owned: 397,100



                               BEAR, STEARNS & CO. INC.

                               By:
                                   --------------------------------------------
                                    Name:
                                    Title:

                               Shares owned:  No less than 300,000

                               Notwithstanding the third paragraph of this
                               Agreement, Bear, Stearns & Co. Inc. shall be 
                               permitted to make sales of Shares pursuant to its
                               market-making activities so long as Bear, Stearns
                               continues to own at all times during the term of
                               such paragraph no less than 300,000 Shares.



                               INTERNATIONAL SPECIALTY PRODUCTS INC.

                               By:
                                   --------------------------------------------
                                    Name:
                                    Title:

                               Shares owned: 3,506,270
                    


                                       36
<PAGE>
                               FREDERICK R. ADLER INTANGIBLE ASSET MANAGEMENT 
                               TRUST

                               By:
                                   --------------------------------------------
                                        Susan R. Chapman
                                        Trustee
          
                               Shares owned: 713,395




                               ------------------------------------------------
                               A. Chang

                               Shares owned: 135,500



                               YORK CAPITAL MANAGEMENT, L.P., 
                               by Dinan Management, L.L.C.,
                               its General Partner

                               By:
                                   --------------------------------------------
                                        James G. Dinan
                                        Senior Managing Member

                               Shares owned: 78,700



                               JGD MANAGEMENT CORP.

                               By:
                                   --------------------------------------------
                                        James G. Dinan
                                        President

                               Shares controlled: 23,100



                                       37
<PAGE>
                               YORK INVESTMENT, LTD.

                               By:
                                   --------------------------------------------
                                        Anthony L.M. Inder Reiden
                                        Director

                               Shares owned: 129,600



















                                       38



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