<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>
ADC Telecommunication COM 000886101 238 3285 SH OTHER 01 3285
AT&T Corp. COM 001957109 3235 63656 SH OTHER 01 62606 1050
Abbott Laboratories COM 002824100 8401 231347 SH OTHER 01 217067 14280
Air Products & Chemicals Inc. COM 009158106 1499 44677 SH OTHER 01 43477 1200
Alcoa COM 022249106 480 5778 SH OTHER 01 5778
Allied Irish Banks ADR COM 019228402 265 12558 SH OTHER 01 12558
Alltel Corp. COM 020039103 318 3849 SH OTHER 01 3849
American Home Products Corp. COM 026609107 4448 113327 SH OTHER 01 107927 5400
American Int'l Group COM 026874107 16352 151230 SH OTHER 01 141122 10108
Amgen Inc. COM 031162100 2215 36878 SH OTHER 01 35518 1360
Anheuser-Busch Companies Inc. COM 035229103 276 3900 SH OTHER 01 3900
Atlantic Richfield Company COM 048825103 932 10780 SH OTHER 01 9980 800
Automatic Data Processing Inc. COM 053015103 5864 108836 SH OTHER 01 99936 8900
BP Amoco PLC ADR COM 055622104 6452 108786 SH OTHER 01 101120 7666
Banc One Corp Del COM 06423A103 840 26258 SH OTHER 01 26258
Bank of America Corp. COM 06605F102 618 12321 SH OTHER 01 12321
Bank of New York Company Inc. COM 064057102 612 15300 SH OTHER 01 15300
Bell Atlantic Corp. COM 077853109 5086 82616 SH OTHER 01 76616 6000
BellSouth Corp. COM 079860102 3308 70657 SH OTHER 01 67857 2800
Best Foods Corp. COM 08658U101 810 15418 SH OTHER 01 10818 4600
Boeing Company COM 097023105 358 8632 SH OTHER 01 8632
Bristol Myers Squibb Co. COM 110122108 10525 163977 SH OTHER 01 157777 6200
Cambridge Technologies COM 132524109 27538 1049070 SH OTHER 01 958770 90300
Cardinal Health Inc. COM 14149y108 450 9393 SH OTHER 01 8893 500
Caterpillar Inc. COM 149123101 207 4400 SH OTHER 01 400 4000
Cendant Corp. COM 151313103 230 8655 SH OTHER 01 8655
Chase Manhattan Corp. COM 16161A108 1925 24774 SH OTHER 01 22874 1900
Chevron Corp. COM 166751107 1179 13610 SH OTHER 01 13610
Chromavision Medical Systems I COM 17111P104 3571 234155 SH OTHER 01 137220 96935
Chubb Corp. COM 171232101 481 8533 SH OTHER 01 6933 1600
Cigna Corp. COM 125509109 1250 15517 SH OTHER 01 15517
Cintas Corp. COM 172908105 689 12965 SH OTHER 01 12765 200
Cisco Systems Inc. COM 17275R102 52901 493822 SH OTHER 01 466531 27291
Citigroup Inc. COM 172967101 3069 55103 SH OTHER 01 53103 2000
Clorox Company COM 189054109 2966 58870 SH OTHER 01 56670 2200
Coca Cola Company COM 191216100 6994 120075 SH OTHER 01 114950 5125
Colgate-Palmolive Company COM 194162103 1430 22000 SH OTHER 01 22000
Compucom Systems Inc. COM 204780100 674 163300 SH OTHER 01 163300
Core Technologies Inc. COM 218911105 1 32066 SH OTHER 01 32066
Dell Computer Corp. COM 247025109 1872 36710 SH OTHER 01 35910 800
Diamond Tech. Partners Cl A COM 252762109 14901 173390 SH OTHER 01 100297 73093
Disney (Walt) Company COM 254687106 2276 77804 SH OTHER 01 72629 5175
Docucorp International Inc. COM 255911109 1652 234985 SH OTHER 01 137450 97535
Dover Corp. COM 260003108 413 9098 SH OTHER 01 7098 2000
Dow Chemical Company COM 260543103 401 3001 SH OTHER 01 2301 700
Duke Power Company COM 264399106 283 5646 SH OTHER 01 5274 372
Dupont (E.I.) De Nemours & Com COM 263534109 9051 137404 SH OTHER 01 121236 16168
EMC Corp. COM 268648102 5089 46581 SH OTHER 01 45131 1450
Electronic Arts Inc. COM 285512109 1473 17530 SH OTHER 01 15530 2000
Eli Lilly and Company COM 532457108 2687 40413 SH OTHER 01 35413 5000
Emerson Electric Company COM 291011104 2704 47123 SH OTHER 01 45793 1330
Enron Corp. COM 293561106 218 4906 SH OTHER 01 4306 600
Ericsson L. M. Tel Co ADR Cl B COM 294821400 1485 22600 SH OTHER 01 9800 12800
Exxon Mobil Corp. COM 30231g102 20337 252440 SH OTHER 01 245524 6916
Fannie Mae COM 313586109 5381 86180 SH OTHER 01 82180 4000
Finance Co PA COM 317369106 352 340 SH OTHER 01 340
First Consulting Group Com COM 31986R103 313 20171 SH OTHER 01 17500 2671
First Data Corp. COM 319963104 549 11142 SH OTHER 01 6942 4200
First Security Corp. COM 336294103 1772 69405 SH OTHER 01 19380 50025
First Union Corp. COM 337358105 5778 175421 SH OTHER 01 167348 8073
Firstar Corp. COM 33763V109 220 10391 SH OTHER 01 10391
FleetBoston Finl. Corp. COM 339030108 271 7772 SH OTHER 01 7772
Freddie Mac COM 313400301 1111 23615 SH OTHER 01 23115 500
Fulton Financial Corp. COM 360271100 785 43632 SH OTHER 01 43632
GAP Inc. COM 364760108 578 12555 SH OTHER 01 10855 1700
GTE Corp. COM 362320103 2001 28357 SH OTHER 01 27087 1270
Gannett Company Inc. COM 364730101 807 9898 SH OTHER 01 8898 1000
General Electric Co. COM 369604103 43629 281931 SH OTHER 01 260804 21127
Gilat Satellite Network COM M51474100 356 3000 SH OTHER 01 3000
Gillette Company COM 375766102 4455 108156 SH OTHER 01 104406 3750
H. J. Heinz Company COM 423074103 1929 48458 SH OTHER 01 45971 2487
Harley-Davidson Inc. COM 412822108 224 3500 SH OTHER 01 3500
Healthsouth Corp. COM 421924101 135 25025 SH OTHER 01 23825 1200
Hershey Foods Corp. COM 427866108 605 12756 SH OTHER 01 12056 700
Hewlett-Packard Company COM 428236103 11250 98900 SH OTHER 01 93450 5450
Home Depot Inc. COM 437076102 20592 299515 SH OTHER 01 282268 17247
IBM Corp. COM 459200101 7939 73594 SH OTHER 01 65156 8438
Illinois Tool Works COM 452308109 6201 91778 SH OTHER 01 87178 4600
Intel Corp. COM 458140100 16860 204824 SH OTHER 01 198184 6640
Internet Capital Group Inc. COM 46059C106 38336 225508 SH OTHER 01 126638 98870
Interpublic Group COM 460690100 574 9950 SH OTHER 01 9550 400
Johnson & Johnson COM 478160104 16221 173957 SH OTHER 01 161595 12362
Justi Group Inc COM 999999999 2492 15775 SH OTHER 01 15775
Kimberly Clark Corp. COM 494368103 1876 28667 SH OTHER 01 27067 1600
Kohls Corp. COM 500255104 3282 45470 SH OTHER 01 44170 1300
Lauder Estee Cosmetics Inc. COM 518439104 526 10430 SH OTHER 01 8430 2000
Lincoln Electric Hldgs. COM 533900106 774 37550 SH OTHER 01 37550
Lucent Technologies Inc. COM 549463107 12384 165125 SH OTHER 01 152029 13096
MBNA Corp. COM 55262L100 481 17640 SH OTHER 01 17140 500
MCI Worldcom Inc COM 55268B106 2982 56197 SH OTHER 01 52897 3300
Marsh & McLennan Companies Inc COM 571748102 627 6549 SH OTHER 01 6549
May Department Stores Company COM 577778103 478 14830 SH OTHER 01 13630 1200
McDonalds Corp. COM 580135101 2005 49726 SH OTHER 01 44726 5000
Medtronic Inc. COM 585055106 787 21590 SH OTHER 01 18990 2600
Mellon Financial Corp. COM 585509102 1706 50076 SH OTHER 01 45676 4400
Merck & Company Inc. COM 589331107 20888 310888 SH OTHER 01 292079 18809
Microsoft Corp. COM 594918104 34736 297526 SH OTHER 01 283776 13750
Minnesota Mng & Mfg Co. COM 604059105 2169 22159 SH OTHER 01 19272 2887
Morgan J.P. & Co. COM 616880100 1979 15628 SH OTHER 01 11828 3800
Motorola Inc. COM 620076109 934 6340 SH OTHER 01 2340 4000
Network Associates Inc. COM 640938106 310 11604 SH OTHER 01 6492 5112
Neuromedical Systems Inc. COM 64124H109 1 10000 SH OTHER 01 10000
Newell Rubbermaid Company COM 651229106 491 16925 SH OTHER 01 13925 3000
Nextera Enterprises Inc. COM 65332E101 644 50000 SH OTHER 01 50000
Nokia Corp. COM 654902204 1595 8350 SH OTHER 01 7700 650
Norsk Hydro ADR COM 656531605 1159 27100 SH OTHER 01 1800 25300
Northern Tr Corp Com COM 665859104 676 12750 SH OTHER 01 11550 1200
OAO Technologies Inc. COM 67082B105 1844 237995 SH OTHER 01 141060 96935
Oracle Corp. COM 68389X105 22866 204044 SH OTHER 01 194408 9636
PNC Bank Corp. COM 693475105 1733 38955 SH OTHER 01 37555 1400
PPG Industries Inc. COM 693506107 1494 23879 SH OTHER 01 21911 1968
Pac-West Telecom. Inc. COM 69371Y101 3518 132769 SH OTHER 01 82704 50065
Paychex Inc. COM 704326107 10014 250357 SH OTHER 01 240419 9938
Penn Treaty American Corp. COM 707874103 11195 710771 SH OTHER 01 416005 294766
Pepsico Inc. COM 713448108 4637 131540 SH OTHER 01 112340 19200
Pfizer Inc. COM 717081103 7238 223144 SH OTHER 01 216044 7100
Philadelphia Suburban Corp. COM 718009608 449 21697 SH OTHER 01 20697 1000
Philip Morris Cos. Inc. COM 718154107 627 27250 SH OTHER 01 27250
Price T. Rowe Assoc. Inc. COM 741477103 3247 87917 SH OTHER 01 77117 10800
Procter & Gamble Co. COM 742718109 16013 146158 SH OTHER 01 140557 5601
Qualcomm COM 747525103 576 3272 SH OTHER 01 372 2900
RCN Corp. COM 749361101 469 9676 SH OTHER 01 9676
Rohm & Haas Co. COM 775371107 716 17589 SH OTHER 01 17589
Royal Dutch Petroleum Company COM 780257804 2650 43756 SH OTHER 01 42756 1000
SBC Communications Corp. COM 78387G103 5911 121260 SH OTHER 01 117571 3689
Safeco Corp. COM 786429100 274 11000 SH OTHER 01 3600 7400
Safeguard Scientifics Inc. COM 786449108 218219 1338764 SH OTHER 01 843130 495634
Sanchez Computer Assoc. COM 799702105 7413 179976 SH OTHER 01 82756 97220
Sara Lee Inc. COM 803111103 1188 53840 SH OTHER 01 51040 2800
Schering-Plough Corp. COM 806605101 2157 50893 SH OTHER 01 49893 1000
Schlumberger Ltd. COM 806857108 841 14991 SH OTHER 01 14018 973
Schwab (Charles) Corp. COM 808513105 3300 86280 SH OTHER 01 82630 3650
ServiceMaster Company COM 81760N109 709 57572 SH OTHER 01 49242 8330
SmithKline Beecham Holding ADR COM 832378301 1191 18567 SH OTHER 01 13567 5000
Solectron Corp. COM 834182107 780 8200 SH OTHER 01 7450 750
SouthTrust Corp. COM 844730101 1065 28175 SH OTHER 01 27575 600
Southwest Airlines Company COM 844741108 208 12880 SH OTHER 01 12880
Sovereign Bancorp Inc. COM 845905108 565 75802 SH OTHER 01 45082 30720
Sprint Corp PCS Group COM 852061506 267 2603 SH OTHER 01 1823 780
Sprint Corp. COM 852061100 2792 41485 SH OTHER 01 36965 4520
Staples Inc. COM 855030102 3283 158229 SH OTHER 01 145054 13175
Starbucks Corp. COM 855244109 1027 42350 SH OTHER 01 40500 1850
State Street Corp. COM 857477103 3340 45721 SH OTHER 01 42021 3700
Sterling Commerce Inc. COM 859205106 258 7600 SH OTHER 01 6600 1000
Stryker Corp. COM 863667101 4229 60740 SH OTHER 01 57540 3200
Student Advantage Inc. COM 86386q105 227 10250 SH OTHER 01 10250
Summit Bancorp COM 866005101 816 26654 SH OTHER 01 24729 1925
Sun Microsystems Inc. COM 866810104 1025 13236 SH OTHER 01 11736 1500
SunTrust Banks Inc. COM 867914103 633 9201 SH OTHER 01 1361 7840
Tangram Enterprise Solutions COM 875924102 83 10497 SH OTHER 01 10497
Telecomonicacoe Brasil ADR COM 879287308 441 3425 SH OTHER 01 525 2900
Teleflex Inc. COM 879369106 1918 61269 SH OTHER 01 56269 5000
Telefonica de Espana Sponsored COM 879382208 237 3013 SH OTHER 01 3013
Tellabs Inc Com COM 879664100 48933 762348 SH OTHER 01 679260 83088
Texaco Inc. COM 881694103 297 5468 SH OTHER 01 5468
Thermo Electron Corp. COM 883556102 533 35520 SH OTHER 01 10470 25050
Thoratec Labs Corporation COM 885175307 205 21000 SH OTHER 01 21000
Tyco Int'l Ltd. COM 902124106 1201 30791 SH OTHER 01 30391 400
US Data Corp. COM 917294100 1420 102336 SH OTHER 01 62036 40300
US Interactive Inc. COM 90334M109 2770 64426 SH OTHER 01 38618 25808
US West Inc New Com COM 91273H101 418 5806 SH OTHER 01 5806
United Technologies Corp. COM 913017109 622 9572 SH OTHER 01 8872 700
UnumProvident Corp COM 903192102 204 6350 SH OTHER 01 6350
Vodafone Airtouch ADR COM 92857t107 1941 39220 SH OTHER 01 37620 1600
Wachovia Corp. COM 929771103 1460 21465 SH OTHER 01 18865 2600
Wal-Mart Stores COM 931142103 13190 190807 SH OTHER 01 185643 5164
Walgreen Company COM 931422109 776 26520 SH OTHER 01 26520
Warner-Lambert Co. COM 934488107 3088 37690 SH OTHER 01 36790 900
Wells Fargo & Co. New COM 949746101 3946 97578 SH OTHER 01 90478 7100
Wrigley Jr. (Wm.) Co. COM 982526105 2293 27649 SH OTHER 01 25749 1900
Merrill Lynch Basic Fd. Cl. A 261 6853.0140SH OTHER 6853.0140
Vanguard Growth & Income Fund 921913109 454 12239.9360SH OTHER 01 12239.9360
Vanguard Index Trust 500 922908108 365 2696.8160SH OTHER 01 2696.8160
Vanguard US Growth 921910105 495 11379.4300SH OTHER 01 11379.4300
Vanguard/Windsor Fd Com 922018106 174 11462.7510SH OTHER 01 11462.7510
Saranac Software 12/31/00 120002605 80 20000 SH OTHER 01 20000
</TABLE>
