<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>
A T & T CORP. COM 001957109 3059 104149 SH SOLE 104149
ABBOTT LABORATORIES COM 002824100 1106 23250 SH SOLE 23250
AIR PRODUCTS & CHEMICALS INC COM 009158106 425 11800 SH SOLE 11800
AIRGAS INC COM 009363102 280 41165 SH SOLE 41165
ALLERGAN, INC COM 018490102 557 6600 SH SOLE 6600
ALLSTATE CORPORATION COM 020002101 252 7260 SH SOLE 7260
ALLTEL CORP COM 020039103 4721 90455 SH SOLE 90455
AMERICAN EXPRESS COM 025816109 2629 43277 SH SOLE 43277
AMERICAN GENERAL COM 026351106 9945 127494 SH SOLE 127494
AMERICAN GREETINGS CORP CL A COM 026375105 1389 79400 SH SOLE 79400
AMERICAN HOME PRODUCTS COM 026609107 9520 168303 SH SOLE 168303
AMERICAN INT'L GROUP COM 026874107 217 2267 SH SOLE 2267
AMSOUTH BANCORP COM 032165102 5287 422945 SH SOLE 422945
ANHEUSER-BUSCH COS INC COM 035229103 618 14596 SH SOLE 14596
AON CORPORATION COM 037389103 8191 208695 SH SOLE 208695
APARTMENT INVT & MGMT CO COM 03748r101 235 5095 SH SOLE 5095
ARMSTRONG HOLDINGS INC COM 042384107 178 14910 SH SOLE 14910
AVON PRODUCTS COM 054303102 278 6800 SH SOLE 6800
BANK OF AMERICA CORP COM 060505104 6770 129253 SH SOLE 129253
BANK ONE CORP COM 06423A103 228 5914 SH SOLE 5914
BAUSCH & LOMB, INC. COM 071707103 304 7800 SH SOLE 7800
BAXTER INT'L COM 071813109 7039 88192 SH SOLE 88192
BEL FUSE CLASS B COM 077347300 1446 37550 SH SOLE 37550
BELLSOUTH CORP. COM 079860102 7034 174768 SH SOLE 174768
BLOCK, H&R INC. COM 093671105 7745 208965 SH SOLE 208965
BP AMOCO LP COM 055622104 15880 299620 SH SOLE 299620
BRISTOL-MYERS SQUIBB COM 110122108 14317 250620 SH SOLE 250620
C&D TECHNOLOGIES INC COM COM 124661109 2032 35800 SH SOLE 35800
CABOT CORP. COM 127055101 1123 35438 SH SOLE 35438
CAMPBELL SOUP COM 134429109 2514 97164 SH SOLE 97164
CARPENTER TECHNOLOGY COM 144285103 1585 54426 SH SOLE 54426
CH ENERGY GROUP INC COM 12541M102 694 17400 SH SOLE 17400
CHASE MANHATTAN CORP COM 16161A108 232 5032 SH SOLE 5032
CHEVRON CORP COM 166751107 727 8531 SH SOLE 8531
CHURCH & DWIGHT INC COM 171340102 2848 155000 SH SOLE 155000
CIGNA CORP. COM 125509109 1698 16269 SH SOLE 16269
CISCO SYSTEMS INC COM 17275R102 784 14186 SH SOLE 14186
CITIGROUP INC COM 172967101 530 9800 SH SOLE 9800
COASTAL CORP COM 190441105 430 5800 SH SOLE 5800
COCA-COLA COM 191216100 508 9211 SH SOLE 9211
COLONIAL PROPERTIES TRUST COM 195872106 2802 109067 SH SOLE 109067
COMERICA INC. COM 200340107 11158 190943 SH SOLE 190943
COMMERCE BANCORP COM 200519106 940 16162 SH SOLE 16162
COMPASS BANCSHARES, INC COM 20449H109 226 11569 SH SOLE 11569
COMPUTER ASSOCIATES INTL INC COM 204912109 305 12100 SH SOLE 12100
COMPUTER SCIENCES CORP COM 205363104 275 3700 SH SOLE 3700
COMPUWARE CORP COM 205638109 126 15000 SH SOLE 15000
CONAGRA FOODS INC. COM 205887102 7974 397481 SH SOLE 397481
CONESTOGA ENTERPRISES COM 207015108 260 13500 SH SOLE 13500
CONOCO INC CL A COM 208251306 9895 378761 SH SOLE 378761
CONOCO INC CL B COM 208251405 536 19896 SH SOLE 19896
CVS CORP COM 126650100 1538 33200 SH SOLE 33200
DAIMLERCHRYSLER AG COM D1668R123 248 5598 SH SOLE 5598
DELPHI AUTOMOTIVE SYSTEMS COM 247126105 1304 86218 SH SOLE 86218
DELTA AIRLINES INC COM 247361108 2746 61871 SH SOLE 61871
DIEBOLD INCORPORATED COM 253651103 999 37595 SH SOLE 37595
DONEGAL GROUP INC COM 257701102 852 117527 SH SOLE 117527
DU PONT EI DE NEMOURS COM 263534109 5427 130962 SH SOLE 130962
DUKE-WEEKS REALTY CORP COM 264411505 410 17000 SH SOLE 17000
EASTMAN KODAK COM 277461109 5703 139525 SH SOLE 139525
EL PASO ENERGY CORP COM 283905107 7618 123620 SH SOLE 123620
ELAN CORP PLC COM 284131208 487 8900 SH SOLE 8900
ELECTRONIC DATA SYSTEMS CORP COM 285661104 5897 142107 SH SOLE 142107
ELI LILLY CO COM 532457108 9206 113482 SH SOLE 113482
EMERSON ELECTRIC COM 291011104 6801 101514 SH SOLE 101514
EQUITABLE RESOURCES INC COM 294549100 713 11250 SH SOLE 11250
EXXON MOBIL CORPORATION COM 30231G102 13971 156760 SH SOLE 156760
FAIRFIELD COMMUNITIES INC COM 304231301 212 20900 SH SOLE 20900
FANNIE MAE COM 313586109 226 3158 SH SOLE 3158
FEDERATED DEPT STORES INC COM 31410H101 4721 180710 SH SOLE 180710
FELCOR LODGING TRUST INC COM 31430F101 668 28900 SH SOLE 28900
FIRST DATA CORP COM 319963104 3097 79285 SH SOLE 79285
FIRST INDUSTRIAL REALTY TRUST COM 32054K103 603 19600 SH SOLE 19600
FIRST UNION CORP COM 337358105 5428 168637 SH SOLE 168637
FORD MOTOR COMPANY COM 345370860 1827 72163 SH SOLE 72163
GAP STORES COM 364760108 259 12883 SH SOLE 12883
GENERAL ELECTRIC COM 369604103 20255 351110 SH SOLE 351110
GENERAL MOTORS COM 370442105 1354 20830 SH SOLE 20830
GENUINE PARTS CO COM 372460105 1710 89700 SH SOLE 89700
GEORGIA PACIFIC CORP COM 373298108 5133 218431 SH SOLE 218431
GLATFELTER, P.H. CO. COM 377316104 1029 84850 SH SOLE 84850
GPU INC. COM 36225X100 250 7700 SH SOLE 7700
GRADCO SYSTEMS, INC COM 384111100 25 17100 SH SOLE 17100
HARRIS CORP COM 413875105 1451 51012 SH SOLE 51012
HEALTH CARE PROPERTY INVESTORS COM 421915109 360 12141 SH SOLE 12141
HEALTH CARE REIT COM 42217K106 456 25700 SH SOLE 25700
HEALTH MGMT ASSOCIATES INC-A COM 421933102 246 11800 SH SOLE 11800
HEINZ HJ CO COM 423074103 3231 87175 SH SOLE 87175
HERTZ CORP COM 428040109 5545 174645 SH SOLE 174645
HEWLETT-PACKARD CO COM 428236103 509 5250 SH SOLE 5250
HILLENBRAND IND COM 431573104 2148 48000 SH SOLE 48000
HOME DEPOT INC COM 437076102 343 6469 SH SOLE 6469
HONEYWELL, INC. COM 438516106 3953 110975 SH SOLE 110975
HORMEL FOODS CORP COM 440452100 197 11800 SH SOLE 11800
HOUSEHOLD INTERNATIONAL, INC. COM 441815107 1011 17854 SH SOLE 17854
HUBBELL INC CL "B" COM 443510201 589 23510 SH SOLE 23510
HUGHES ELECTRONICS COM 370442832 265 7120 SH SOLE 7120
HUNT CORP COM 445591100 953 133774 SH SOLE 133774
IKON OFFICE SOLUTIONS, INC COM 451713101 1343 341000 SH SOLE 341000
INSITUFORM TECHNOLOGIES, INC. COM 457667103 1676 49850 SH SOLE 49850
INT'L BUSINESS MACHINES CORP. COM 459200101 7758 68959 SH SOLE 68959
INT'L FLAVORS & FRAGRANCES INC COM 459506101 184 10078 SH SOLE 10078
INTEL CORP. COM 458140100 2085 50168 SH SOLE 50168
IRON MOUNTAIN INC COM 462846106 2392 64655 SH SOLE 64655
JEFFERSON PILOT CORP. COM 475070108 8813 129835 SH SOLE 129835
JOHNSON & JOHNSON COM 478160104 2278 24250 SH SOLE 24250
KIMBERLY-CLARK CORP. COM 494368103 11896 213145 SH SOLE 213145
KIMCO REALTY CORP COM 49446R109 334 7900 SH SOLE 7900
KROGER CO COM 501044101 226 10000 SH SOLE 10000
LIBERTY PROPERTY TRUST COM 531172104 3455 125640 SH SOLE 125640
LINCOLN NATIONAL COM 534187109 11471 238358 SH SOLE 238358
LOWES COMPANIES, INC. COM 548661107 314 7000 SH SOLE 7000
LUCENT COM 549463107 3344 109407 SH SOLE 109407
MALLINCKRODT GROUP INC. COM 561232109 776 17000 SH SOLE 17000
MARSH & McLENNAN COM 571748102 2974 22400 SH SOLE 22400
MAYTAG CORP COM 578592107 499 16050 SH SOLE 16050
MCGRAW-HILL COM 580645109 420 6600 SH SOLE 6600
MEDTRONIC INC. COM 585055106 228 4400 SH SOLE 4400
MELLON FINANCIAL CORP COM 58551A108 972 20950 SH SOLE 20950
MERCK & CO. COM 589331107 15783 212024 SH SOLE 212024
MET PRO CORP COM 590876306 310 30600 SH SOLE 30600
MICROSOFT CORP COM 594918104 1381 22900 SH SOLE 22900
MILLIPORE CORP COM 601073109 3342 69000 SH SOLE 69000
MINNESOTA MINING & MFG CO COM 604059105 5009 54964 SH SOLE 54964
MORGAN JP CO COM 616880100 320 1961 SH SOLE 1961
MORGAN STANLEY, DEAN WITTER, D COM 617446448 1088 11900 SH SOLE 11900
NATIONAL CITY CORP COM 635405103 1237 55900 SH SOLE 55900
NORFOLK SOUTHERN CORP COM 655844108 681 46575 SH SOLE 46575
NOVO-NORDISK ADR COM 670100205 5550 50000 SH SOLE 50000
OMNICOM GROUP, INC. COM 681919106 1516 20783 SH SOLE 20783
PALL CORP COM COM 696429307 611 30650 SH SOLE 30650
PENN VIRGINIA CORP COM 707882106 1135 43640 SH SOLE 43640
PEPSICO INC COM 713448108 1179 25620 SH SOLE 25620
PERKIN ELMER INC COM 714046109 2140 20500 SH SOLE 20500
PFIZER INC. COM 717081103 2442 54341 SH SOLE 54341
PHARMACIA CORPORATION COM 71713U102 1251 20788 SH SOLE 20788
PHILIP MORRIS COM 718154107 449 15242 SH SOLE 15242
PHILLIPS PETROLEUM COM 718507106 213 3400 SH SOLE 3400
PITNEY BOWES INC. COM 724479100 12667 321181 SH SOLE 321181
PNC FINANCIAL SERVICES GROUP COM 693475105 6568 101052 SH SOLE 101052
PPG IND INC COM 693506107 1992 50200 SH SOLE 50200
PROCTER & GAMBLE COM 742718109 1241 18517 SH SOLE 18517
PROVIDENT BANKSHARES CORP COM 743859100 338 20160 SH SOLE 20160
PUBLIC STORAGE INC COM COM 74460D109 254 10600 SH SOLE 10600
QWEST COMMUNICATIONS COM COM 749121109 6237 129777 SH SOLE 129777
ROUSE CORP COM 779273101 287 11500 SH SOLE 11500
SAFEGUARD SCIENTIFICS COM 786449108 257 12900 SH SOLE 12900
SBC COMMUNICATIONS CORP TEXAS COM 78387G103 12288 245761 SH SOLE 245761
SCHLUMBERGER LTD COM 806857108 2478 30100 SH SOLE 30100
SEARS ROEBUCK & CO COM 812387108 468 14426 SH SOLE 14426
SIMON PROPERTY GROUP INC COM 828806109 764 32600 SH SOLE 32600
SMITHKLINE BEECHAM SPONS ADR COM 832378301 1619 23590 SH SOLE 23590
SMUCKER, J.M. COM COM 832696306 323 13300 SH SOLE 13300
SOUTHTRUST CORP COM 844730101 7232 230040 SH SOLE 230040
STAPLES, INC COM 855030102 160 11250 SH SOLE 11250
SUMMIT BANCORP COM 866005101 1309 37950 SH SOLE 37950
SUN MICROSYSTEMS INC COM 866810104 385 3300 SH SOLE 3300
SUNGARD DATA SYSTEMS INC COM 867363103 432 10100 SH SOLE 10100
SUNTRUST BANKS COM 867914103 323 6478 SH SOLE 6478
TB WOODS CORP COM 872226105 159 14000 SH SOLE 14000
TELEFLEX INC COM 879369106 398 11584 SH SOLE 11584
TEXACO, INC. COM 881694103 9062 172604 SH SOLE 172604
TORCHMARK CORP COM 891027104 417 15000 SH SOLE 15000
TRANSOCEAN SEDCO FOREX INC COM 893817106 219 3729 SH SOLE 3729
TXU CORP COM 873168108 868 21900 SH SOLE 21900
TYCO INTERNATIONAL LTD COM 902124106 462 8900 SH SOLE 8900
U.S. BANCORP DEL COM 902973106 301 13231 SH SOLE 13231
UNION PACIFIC CORP COM 907818108 5141 132240 SH SOLE 132240
UNION PLANTERS COM 908068109 506 15300 SH SOLE 15300
UNISYS CORP. COM 909214108 200 17800 SH SOLE 17800
UNITED DOMINION REALTY TRUST COM 910197102 453 41700 SH SOLE 41700
UNITED PARCEL SERVICE INC COM 911312106 21578 382755 SH SOLE 382755
UNITED TECHNOLOGIES CORP COM 913017109 8450 122016 SH SOLE 122016
UNITRIN, INC COM 913275103 941 29700 SH SOLE 29700
UNIVERSAL FOODS CORP COM 913538104 355 17400 SH SOLE 17400
USX-MARATHON GROUP COM 902905827 7746 272988 SH SOLE 272988
VALASSIS COMMUNICATIONS INC COM 918866104 343 15400 SH SOLE 15400
VELCRO INDUSTRIES COM 922571104 3056 284300 SH SOLE 284300
VERIZON COMMUNICATIONS COM 92343V104 8315 171675 SH SOLE 171675
WAL-MART STORES COM 931142103 397 8254 SH SOLE 8254
WALT DISNEY COMPANY COM 254687106 1660 43400 SH SOLE 43400
WASHINGTON MUTUAL COM 939322103 7088 178035 SH SOLE 178035
WASTE MANAGEMENT INC COM 94106L109 647 37100 SH SOLE 37100
WD-40 CO COM 929236107 2753 129550 SH SOLE 129550
WEYERHAEUSER CO COM 962166104 4233 104840 SH SOLE 104840
WHIRLPOOL CORP COM 963320106 6258 160979 SH SOLE 160979
WILLIAMS COMPANY COM 969457100 769 18201 SH SOLE 18201
WILMINGTON TRUST CORP COM 971807102 465 8664 SH SOLE 8664
WORLDCOM INC. COM 98157D106 345 11350 SH SOLE 11350
XEROX CORP. COM 984121103 1014 67310 SH SOLE 67310
FIDELITY OVERSEAS FD SH BEN IN MF 316343102 360 8493 SH SOLE 8493
FIDELITY SECS FD OTC PORTFOLIO MF 316389105 560 9542 SH SOLE 9542
SEI S&P 500 INDEX FD CL E MF 783924103 229 5139 SH SOLE 5139
STRATTON GROWTH FUND INC MF 863144101 1201 36758 SH SOLE 36758
STRATTON MONTHLY DIVIDEND REIT MF 863147104 1089 45738 SH SOLE 45738
STRATTON SMALL-CAP VALUE FUND MF 863137105 5712 257773 SH SOLE 257773
T ROWE PRICE INT'L STOCK MF 77956h203 365 21743 SH SOLE 21743
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