<TABLE>
FORM 13F INFORMATION TABLE
VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE
- ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
ABBOTT LABORATORIES COM 002824100 489 13900 SH SOLE 13900
AMERICAN EXPRESS CO. COM 025816109 4537 30460 SH SOLE 30460
AMERICAN HOME PRODUCTS CORP. COM 026609107 1383 25731 SH SOLE 25731
AMERICAN INTERNATIONAL GROUP COM 026874107 5329 48663 SH SOLE 48663
ANALOG DEVICES, INC. COM 032654105 4783 59416 SH SOLE 59416
BELL ATLANTIC CORP. COM 077853109 518 8468 SH SOLE 8468
BERKSHIRE HATHAWAY CL A COM 084670108 1430 25 SH SOLE 25
BERKSHIRE HATHAWAY CL B COM 084670207 4934 2711 SH SOLE 2711
BIOTECH HLDRS DEP RCPTS COM 09067d201 203 1200 SH SOLE 1200
BOSTON PROPERTIES INC. COM 101121101 1601 50325 SH SOLE 50325
BP AMOCO PLC SPONS ADR COM 055622104 1009 18951 SH SOLE 18951
BRISTOL MYERS SQUIBB CO. COM 110122108 5480 94490 SH SOLE 94490
CISCO SYSTEMS, INC. COM 17275R102 13322 172310 SH SOLE 172310
CNF TRANSPORTATION INC. COM 12612W104 521 18790 SH SOLE 18790
COCA COLA CO. COM 191216100 423 9009 SH SOLE 9009
CORNING INC. COM 219350105 219 1128 SH SOLE 1128
DUKE-WEEKS REALTY CORP. COM 264411505 1607 84022 SH SOLE 84022
EASTMAN KODAK CO. COM 277461109 428 7885 SH SOLE 7885
EMC CORPORATION COM 268648102 3465 27500 SH SOLE 27500
EMERSON ELECTRIC CO. COM 291011104 1604 30190 SH SOLE 30190
EQUITY OFFICE PROPERTIES TR COM 294741103 3864 153809 SH SOLE 153809
ERICSSON LM TEL SEK 10B ADR COM 294821400 12009 128015 SH SOLE 128015
EXXON MOBIL CORP. COM 30231G102 1030 13214 SH SOLE 13214
FIRST YEARS INC. COM 337610109 178 25600 SH SOLE 25600
FLEETBOSTON FINANCIAL CORP. COM 33901A108 663 18177 SH SOLE 18177
GANNETT CO. COM 364730101 650 9231 SH SOLE 9231
GENERAL ELECTRIC CO. COM 369604103 6227 40012 SH SOLE 40012
GILLETTE CO. COM 375766102 5481 145438 SH SOLE 145438
GTE CORP. COM 362320103 2819 39700 SH SOLE 39700
HEWLETT PACKARD CO. COM 428236103 204 1535 SH SOLE 1535
INTEL CORP. COM 458140100 17484 132519 SH SOLE 132519
INTERNATIONAL BUSINESS MACHINE COM 459200101 2994 25373 SH SOLE 25373
J. P. MORGAN & CO. COM 616880100 380 2887 SH SOLE 2887
JOHNSON & JOHNSON COM 478160104 5914 84185 SH SOLE 84185
KIMBERLY CLARK CORP. COM 494368103 2303 41082 SH SOLE 41082
LUCENT TECHNOLOGIES COM COM 549463107 4286 69969 SH SOLE 69969
MCDONALDS CORP. COM 580135101 4396 117610 SH SOLE 117610
MERCK & CO. INC. COM 589331107 5597 90087 SH SOLE 90087
MERRILL LYNCH & CO. COM 590188108 2730 26000 SH SOLE 26000
MICROSOFT CORP. COM 594918104 13409 126205 SH SOLE 126205
MINNESOTA MINING & MANUF. CO. COM 604059105 446 5031 SH SOLE 5031
MOTOROLA INC. COM 620076109 1518 10395 SH SOLE 10395
NESTLE SPON ADR REPSTG REG SH COM 641069406 528 5890 SH SOLE 5890
NEXTEL COMMUNICATIONS COM 65332V103 783 5280 SH SOLE 5280
NOVARTIS ADR COM 66987V109 493 7205 SH SOLE 7205
ORACLE SYSTEMS CORPORATION COM 68389X105 5878 75302 SH SOLE 75302
PARAMETRIC TECHNOLOGY CP COM 699173100 4508 214025 SH SOLE 214025
PFIZER, INC. COM 717081103 274 7495 SH SOLE 7495
PROCTOR AND GAMBLE COM 742718109 2357 41720 SH SOLE 41720
REUTERS GROUP PLC SPON ADR COM 76132M102 1037 8684 SH SOLE 8684
SCHERING PLOUGH CORP COM 806605101 6716 180913 SH SOLE 180913
STATE STREET CORP. COM 857477103 243 2510 SH SOLE 2510
STERIS CORPORATION COM 859152100 1116 108860 SH SOLE 108860
STMICROELECTRONICS N.V. COM 861012102 7053 37681 SH SOLE 37681
SUN MICROSYSTEMS INC. COM 866810104 423 4510 SH SOLE 4510
TANDY CORP. COM 875382103 645 12700 SH SOLE 12700
TELEFONICA SA SPAIN ADR COM 879382208 3117 41914 SH SOLE 41914
UNUMPROVIDENT CORP. COM 91529Y106 218 12860 SH SOLE 12860
WALT DISNEY CO. COM 254687106 3626 87912 SH SOLE 87912
WARNER LAMBERT CO. COM 934488107 5169 52914 SH SOLE 52914
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