<TABLE>
<CAPTION>
<S>
ISSUE CLASS CUSIP VALUE SHRS/PRN AMT SH/PRN PT/CL INVST DSCRET OTHR MGR SOLE SHRD NONE
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Cohen & Steers Realty MF 294710512 47 " 56,730 " SH SOLE " 56,730 "
EV Marathon MD Tax Fund MF 27826L827 245 " 22,800 " SH SOLE " 22,800 "
"Merrill Lynch & Co., Mitts 06/14/02" MF 590188710 93 " 10,000 " SH SOLE " 10,000 "
AlliedSignal COM 019512102 " 1,170 " " 23,795 " SH SOLE " 23,795 "
AlliedSignal COM 019512102 649 " 13,200 " SH OTHER " 13,200 "
Broken Hill Proprietary ADR 112169206 325 " 18,816 " SH OTHER " 18,816 "
Corning COM 219327103 492 " 8,200 " SH SOLE " 8,200 "
Dow Chemical COM 260543103 205 " 2,200 " SH SOLE " 2,200 "
Du Pont COM 263534109 " 1,850 " " 31,870 " SH SOLE " 31,870 "
Du Pont COM 263534109 569 " 9,800 " SH OTHER " 9,800 "
Emerson Electric Co. COM 291011104 222 " 4,200 " SH SOLE " 4,200 "
General Electric COM 369604103 " 14,277 " " 129,055 " SH SOLE " 129,055 "
General Electric COM 369604103 " 4,166 " " 37,655 " SH OTHER " 37,655 "
Honeywell COM 438506107 269 " 3,550 " SH OTHER " 3,550 "
Ionics COM 462218108 988 " 32,800 " SH SOLE " 32,800 "
Pioneer Hi Bred COM 723686101 " 14,466 " " 384,477 " SH OTHER " 384,477 "
Raytheon Class B COM 755111101 889 " 15,164 " SH SOLE " 15,164 "
AT & T Corp. COM 001957109 " 1,207 " " 15,121 " SH SOLE " 15,121 "
AT & T Corp. COM 001957109 64 799 SH OTHER 799
Airtouch Communications COM 00949T100 255 " 2,640 " SH SOLE " 2,640 "
Airtouch Communications COM 00949T100 18 185 SH OTHER 185
Ameritech Corp. COM 030954101 115 " 2,000 " SH SOLE " 2,000 "
Ameritech Corp. COM 030954101 103 " 1,784 " SH OTHER " 1,784 "
Bell Atlantic COM 077853109 760 " 14,696 " SH SOLE " 14,696 "
Bell Atlantic COM 077853109 543 " 10,498 " SH OTHER " 10,498 "
BellSouth COM 079860102 738 " 18,428 " SH SOLE " 18,428 "
BellSouth COM 079860102 108 " 2,692 " SH OTHER " 2,692 "
GTE Corp. COM 362320103 267 " 4,414 " SH SOLE " 4,414 "
GTE Corp. COM 362320103 24 400 SH OTHER 400
MCI WorldCom COM 55268B106 530 " 5,982 " SH SOLE " 5,982 "
MCI WorldCom COM 55268B106 346 " 3,908 " SH OTHER " 3,908 "
SBC Communications COM 78378G103 679 " 14,386 " SH SOLE " 14,386 "
SBC Communications COM 78378G103 123 " 2,604 " SH OTHER " 2,604 "
Best Foods COM 126149103 747 " 15,900 " SH SOLE " 15,900 "
Campbell COM 134429109 407 " 10,000 " SH SOLE " 10,000 "
Coca Cola COM 191216100 " 2,025 " " 33,000 " SH SOLE " 33,000 "
Colgate-Palmolive Company COM 194162103 368 " 4,000 " SH SOLE " 4,000 "
General Mills COM 370334104 362 " 4,785 " SH OTHER " 4,785 "
Gillette COM 375766102 " 1,909 " " 32,114 " SH SOLE " 32,114 "
Harley Davidson COM 412822108 230 " 4,000 " SH SOLE " 4,000 "
Hershey Foods COM 427866108 " 2,634 " " 46,975 " SH SOLE " 46,975 "
Hershey Foods COM 427866108 11 200 SH OTHER 200
Minnesota Mining & Manufacturing COM 604059105 212 " 3,000 " SH SOLE " 3,000 "
Minnesota Mining & Manufacturing COM 604059105 7 100 SH OTHER 100
Newell Rubbermaid COM 651229106 374 " 7,883 " SH SOLE " 7,883 "
Pepsico COM 713448108 " 3,150 " " 80,392 " SH SOLE " 80,392 "
Pepsico COM 713448108 270 " 6,900 " SH OTHER " 6,900 "
Procter & Gamble COM 742716109 " 6,699 " " 68,400 " SH SOLE " 68,400 "
Procter & Gamble COM 742716109 " 3,215 " " 32,830 " SH OTHER " 32,830 "
WM Wrigley COM 982526105 687 " 7,600 " SH SOLE " 7,600 "
Gannett Co. Inc. COM 364730101 581 " 9,230 " SH SOLE " 9,230 "
Lowes Cos. COM 548661107 61 " 1,000 " SH SOLE " 1,000 "
Lowes Cos. COM 548661107 303 " 5,000 " SH OTHER " 5,000 "
May Department Stores COM 577778103 235 " 6,000 " SH SOLE " 6,000 "
McDonalds Corp. COM 580135101 " 4,100 " " 90,474 " SH SOLE " 90,474 "
McDonalds Corp. COM 580135101 82 " 1,800 " SH OTHER " 1,800 "
Sysco COM 871829107 " 1,318 " " 50,100 " SH SOLE " 50,100 "
Time Warner Inc. COM 887315109 283 " 4,000 " SH SOLE " 4,000 "
Time Warner Inc. COM 887315109 110 " 1,550 " SH OTHER " 1,550 "
Walgreen Co. COM 931422109 " 1,551 " " 54,900 " SH SOLE " 54,900 "
Walt Disney COM 254687106 " 4,393 " " 141,150 " SH SOLE " 141,150 "
Walt Disney COM 254687106 134 " 4,300 " SH OTHER " 4,300 "
Weis Markets COM 948849104 277 " 7,593 " SH SOLE " 7,593 "
BP Amoco PLC COM 055622104 175 " 1,730 " SH SOLE " 1,730 "
BP Amoco PLC COM 055622104 785 " 7,770 " SH OTHER " 7,770 "
Chevron Corporation COM 166751107 498 " 5,610 " SH SOLE " 5,610 "
Exxon COM 302290101 " 2,858 " " 40,499 " SH SOLE " 40,499 "
Exxon COM 302290101 " 1,129 " " 16,000 " SH OTHER " 16,000 "
Halliburton COM 406216101 71 " 1,834 " SH SOLE " 1,834 "
Halliburton COM 406216101 565 " 14,682 " SH OTHER " 14,682 "
Mobil COM 607080108 " 1,250 " " 14,201 " SH SOLE " 14,201 "
Mobil COM 607080108 " 1,373 " " 15,600 " SH OTHER " 15,600 "
Schlumberger COM 806857108 897 " 14,906 " SH SOLE " 14,906 "
American Express COM 025816109 210 " 1,780 " SH SOLE " 1,780 "
American Express COM 025816109 571 " 4,850 " SH OTHER " 4,850 "
American International Group COM 026874107 " 4,483 " " 37,165 " SH SOLE " 37,165 "
American International Group COM 026874107 339 " 2,810 " SH OTHER " 2,810 "
Banc One COM 06423A103 747 " 13,560 " SH SOLE " 13,560 "
Bank of New York COM 064057102 " 3,308 " " 92,042 " SH SOLE " 92,042 "
Bank of New York COM 064057102 211 " 5,880 " SH OTHER " 5,880 "
Berkshire Hathaway Class A COM 084670108 214 3 SH SOLE 3
Berkshire Hathaway Class B COM 084670207 245 104 SH SOLE 104
Citigroup COM 172967101 246 " 3,850 " SH SOLE " 3,850 "
Citigroup COM 172967101 32 500 SH OTHER 500
Fiduciary Trust COM 316495100 270 " 6,040 " SH SOLE " 6,040 "
Keycorp COM 493263107 472 " 15,566 " SH SOLE " 15,566 "
Merrill Lynch & Co. COM 590188108 319 " 3,600 " SH SOLE " 3,600 "
Merrill Lynch & Co. COM 590188108 9 100 SH OTHER 100
Reliastar Financial Corp COM 7595ZU103 " 1,792 " " 42,030 " SH OTHER " 42,030 "
T. Rowe Price COM 741477103 " 5,230 " " 152,150 " SH SOLE " 152,150 "
T. Rowe Price COM 741477103 7 200 SH OTHER 200
Wells Fargo & Co. COM 949746101 " 1,573 " " 44,850 " SH SOLE " 44,850 "
Abbott Labs COM 002824100 " 3,376 " " 72,120 " SH SOLE " 72,120 "
Abbott Labs COM 002824100 183 " 3,900 " SH OTHER " 3,900 "
American Home Products COM 026609107 " 1,481 " " 22,700 " SH SOLE " 22,700 "
American Home Products COM 026609107 692 " 10,600 " SH OTHER " 10,600 "
Bristol Myers Squibb COM 110097102 " 3,828 " " 59,696 " SH SOLE " 59,696 "
Bristol Myers Squibb COM 110097102 " 1,141 " " 17,800 " SH OTHER " 17,800 "
Elan COM 284131208 279 " 4,000 " SH SOLE " 4,000 "
Johnson & Johnson COM 478160104 " 3,829 " " 40,950 " SH SOLE " 40,950 "
Johnson & Johnson COM 478160104 37 400 SH OTHER 400
Lifetech COM 531938108 - " 10,285 " SH SOLE " 10,285 "
Merck COM 589331107 " 7,243 " " 90,400 " SH SOLE " 90,400 "
Merck COM 589331107 216 " 2,700 " SH OTHER " 2,700 "
Pfizer COM 717081103 " 5,211 " " 37,557 " SH SOLE " 37,557 "
Charles E. Smith Residential Realty COM 832197107 319 " 10,355 " SH OTHER " 10,355 "
Washington Real Estate Investment Trust COM 939653101 817 " 50,100 " SH SOLE " 50,100 "
Washington Real Estate Investment Trust COM 939653101 39 " 2,400 " SH OTHER " 2,400 "
Cisco Systems COM 17275R102 " 6,128 " " 55,928 " SH SOLE " 55,928 "
Cisco Systems COM 17275R102 90 825 SH OTHER 825
Compaq Computer Corp. COM 204493100 133 " 4,200 " SH SOLE " 4,200 "
Compaq Computer Corp. COM 204493100 152 " 4,800 " SH OTHER " 4,800 "
Computer Sciences COM 205363104 " 1,970 " " 35,700 " SH SOLE " 35,700 "
EMC Corp. COM 268648102 " 5,825 " " 45,600 " SH SOLE " 45,600 "
Hewlett Packard COM 428236103 " 2,429 " " 35,825 " SH SOLE " 35,825 "
Hewlett Packard COM 428236103 468 " 6,900 " SH OTHER " 6,900 "
Intel COM 458140100 " 1,075 " " 9,040 " SH SOLE " 9,040 "
Intel COM 458140100 279 " 2,350 " SH OTHER " 2,350 "
IBM COM 459200101 692 " 3,906 " SH SOLE " 3,906 "
IBM COM 459200101 9 50 SH OTHER 50
Lucent Technologies COM 549463107 " 4,373 " " 40,489 " SH SOLE " 40,489 "
Lucent Technologies COM 549463107 " 1,157 " " 10,716 " SH OTHER " 10,716 "
Microsoft COM 594918104 " 16,709 " " 186,428 " SH SOLE " 186,428 "
Microsoft COM 594918104 968 " 10,800 " SH OTHER " 10,800 "
Motorola COM 620076109 544 " 7,430 " SH SOLE " 7,430 "
Motorola COM 620076109 44 600 SH OTHER 600
CSX Corp. COM 126408103 339 " 8,700 " SH SOLE " 8,700 "
Philadelphia Suburban COM 718009608 237 " 10,463 " SH SOLE " 10,463 "
Washington Gas Light Company COM 938837101 286 " 12,620 " SH SOLE " 12,620 "
Japan Fund MF 471070102 378 " 49,185 " SH OTHER " 49,185 "
Morgan Stanley Asia Pacific Fund MF 61744U106 86 " 10,750 " SH OTHER " 10,750 "
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