The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
AMERICAN FUNDS WASHINGTON MUTU MF 939330825 692 16,866 SH   SOLE   0 0 16,866
FIDELITY 500 INDEX FUND MF 315911750 1,050 12,057 SH   SOLE   0 0 12,057
FIDELITY CONTRAFUND MF 316071109 847 76,959 SH   SOLE   0 0 76,959
FRANKLIN INCOME ADV CL AD MF 353496847 71 33,257 SH   SOLE   0 0 33,257
INVESCO GLOBAL CORE EQUITY CL MF 00141L798 183 14,415 SH   SOLE   0 0 14,415
MFS MASSACHUSETTS INV TRUST CL MF 575736400 580 22,345 SH   SOLE   0 0 22,345
NUVEEN INSD DIV ADV MUNI FD CO MF 67071L106 600 42,948 SH   SOLE   0 0 42,948
NUVEEN MD PREMIUM INC MUNICIPA MF 67061Q107 270 23,025 SH   SOLE   0 0 23,025
PUTNAM MUNI OPPORTUNITIES TR S MF 746922103 138 12,262 SH   SOLE   0 0 12,262
T ROWE PRICE ST TAX FREE INCOM MF 77957R101 253 23,997 SH   SOLE   0 0 23,997
T. ROWE PRICE HIGH-YIELD MF 741481105 69 11,268 SH   SOLE   0 0 11,268
T. ROWE PRICE SMALL-CAP VALUE MF 77957Q103 353 8,846 SH   SOLE   0 0 8,846
VANGUARD WINDSOR FUND ADMIRAL MF 922018304 441 7,988 SH   SOLE   0 0 7,988
3M CO. COM 88579Y101 3,500 18,367 SH   SOLE   0 0 18,367
ABBOTT LABORATORIES COM 002824100 7,098 98,137 SH   SOLE   0 0 98,137
ABBVIE INC COM 00287Y109 1,706 18,502 SH   SOLE   0 0 18,502
ADOBE SYSTEMS INCORPORATED COM 00724F101 3,199 14,140 SH   SOLE   0 0 14,140
AIR PRODUCTS & CHEMICALS COM 009158106 216 1,351 SH   SOLE   0 0 1,351
ALLSTATE CORPORATION COM 020002101 666 8,058 SH   SOLE   0 0 8,058
ALPHABET INC NON-VOTING CL C COM 02079K107 5,184 5,006 SH   SOLE   0 0 5,006
ALPHABET INC VOTING CL A COM 02079K305 510 488 SH   SOLE   0 0 488
ALTRIA GROUP COM 02209S103 217 4,400 SH   SOLE   0 0 4,400
AMAZON.COM INC COM 023135106 5,976 3,979 SH   SOLE   0 0 3,979
AMERICAN EXPRESS INC COM 025816109 2,434 25,530 SH   SOLE   0 0 25,530
AMGEN INC COM 031162100 1,008 5,176 SH   SOLE   0 0 5,176
ANADARKO PETROLEUM CORP COM 032511107 393 8,974 SH   SOLE   0 0 8,974
APPLE INC COM 037833100 6,533 41,417 SH   SOLE   0 0 41,417
AQUA AMERICA COM 03836W103 5,474 160,120 SH   SOLE   0 0 160,120
ARCHER DANIELS MIDLAND CO COM 039483102 1,152 28,111 SH   SOLE   0 0 28,111
AT&T CORP NEW COM 00206R102 2,306 80,800 SH   SOLE   0 0 80,800
ATMOS ENERGY CORP COM 049560105 1,550 16,720 SH   SOLE   0 0 16,720
BANK OF AMERICA COM 060505104 952 38,628 SH   SOLE   0 0 38,628
BANK OF NEW YORK MELLON CORP COM 064058100 982 20,864 SH   SOLE   0 0 20,864
BECTON DICKINSON COM 075887109 9,813 43,550 SH   SOLE   0 0 43,550
BERKSHIRE HATHAWAY INC DEL CLA COM 084670108 4,284 14 SH   SOLE   0 0 14
BERKSHIRE HATHAWAY INC DEL CLA COM 084670702 713 3,494 SH   SOLE   0 0 3,494
BOEING COM 097023105 3,192 9,898 SH   SOLE   0 0 9,898
BP PLC SPONS ADR COM 055622104 310 8,164 SH   SOLE   0 0 8,164
BRISTOL-MYERS SQUIBB COMPANY COM 110122108 833 16,023 SH   SOLE   0 0 16,023
C S X CORPORATION COM 126408103 447 7,200 SH   SOLE   0 0 7,200
CABLE ONE INC COM 12685J105 309 377 SH   SOLE   0 0 377
CATERPILLAR INCORPORATED COM 149123101 4,664 36,701 SH   SOLE   0 0 36,701
CHEMOURS CO COM 163851108 20,484 725,884 SH   SOLE   0 0 725,884
CHEVRON CORP COM 166764100 6,693 61,524 SH   SOLE   0 0 61,524
CHURCH & DWIGHT CO INC COM 171340102 10,172 154,683 SH   SOLE   0 0 154,683
CIMAREX ENERGY CO. COM 171798101 247 4,000 SH   SOLE   0 0 4,000
CISCO SYSTEMS INC COM 17275R102 6,060 139,849 SH   SOLE   0 0 139,849
COASTAL CARIBBEAN OILS & MINER COM 190432203 0 69,910 SH   SOLE   0 0 69,910
COCA-COLA COMPANY COM 191216100 1,993 42,100 SH   SOLE   0 0 42,100
COLGATE-PALMOLIVE COMPANY COM 194162103 372 6,257 SH   SOLE   0 0 6,257
COMCAST CORP NEW CL A COM 20030N101 285 8,380 SH   SOLE   0 0 8,380
CONOCOPHILLIPS COM 20825C104 345 5,534 SH   SOLE   0 0 5,534
CORNING INC. COM 219350105 734 24,300 SH   SOLE   0 0 24,300
CVS CAREMARK CORPORATION COM 126650100 560 8,550 SH   SOLE   0 0 8,550
DANAHER CORP COM 235851102 447 4,336 SH   SOLE   0 0 4,336
DENTSPLY SIRONA INC COM 24906P109 1,792 48,162 SH   SOLE   0 0 48,162
DISCOVER FINANCIAL SERVICES COM 254709108 512 8,677 SH   SOLE   0 0 8,677
DOMINION RESOURCES INC OF VA COM 25746U109 3,730 52,201 SH   SOLE   0 0 52,201
DOWDUPONT INC. COM 26078J100 177,401 3,317,146 SH   SOLE   0 0 3,317,146
DTE ENERGY COM 233331107 332 3,011 SH   SOLE   0 0 3,011
DUKE ENERGY CORP COM 26441C204 1,415 16,397 SH   SOLE   0 0 16,397
ELI LILLY & CO COM 532457108 558 4,822 SH   SOLE   0 0 4,822
EMERSON ELECTRIC CO. COM 291011104 856 14,331 SH   SOLE   0 0 14,331
ENBRIDGE INC. COM 29250N105 845 27,175 SH   SOLE   0 0 27,175
EXELON CORP COM 30161N101 220 4,876 SH   SOLE   0 0 4,876
EXXON MOBIL CORPORATION COM 30231G102 10,618 155,715 SH   SOLE   0 0 155,715
FEDERAL REALTY INV TR S B I COM 313747206 1,304 11,044 SH   SOLE   0 0 11,044
FEDEX CORP COM 31428X106 4,846 30,040 SH   SOLE   0 0 30,040
FISERV INC COM 337738108 220 3,000 SH   SOLE   0 0 3,000
FORTIVE CORP COM 34959J108 237 3,505 SH   SOLE   0 0 3,505
FRANKLIN RESOURCES INC COM 354613101 675 22,769 SH   SOLE   0 0 22,769
GENERAL ELECTRIC COMPANY COM 369604103 1,811 239,222 SH   SOLE   0 0 239,222
GENERAL MILLS INC COM 370334104 548 14,079 SH   SOLE   0 0 14,079
GRAHAM HOLDINGS CO. COM 384637104 224 349 SH   SOLE   0 0 349
HERSHEY COMPANY COM 427866108 1,301 12,137 SH   SOLE   0 0 12,137
HOME DEPOT COM 437076102 847 4,930 SH   SOLE   0 0 4,930
HONEYWELL INTERNATIONAL INC COM 438516106 2,250 17,028 SH   SOLE   0 0 17,028
ILLINOIS TOOL WORKS INC. COM 452308109 8,474 66,887 SH   SOLE   0 0 66,887
INTEL CORP COM COM 458140100 5,860 124,858 SH   SOLE   0 0 124,858
INTERNATIONAL BUSINESS MACHINE COM 459200101 2,591 22,792 SH   SOLE   0 0 22,792
INTERNATIONAL FLAVORS & FRAGRA COM 459506101 201 1,500 SH   SOLE   0 0 1,500
INTERNATIONAL PAPER CO COM 460146103 230 5,709 SH   SOLE   0 0 5,709
INTUIT INC COM 461202103 709 3,600 SH   SOLE   0 0 3,600
ISHARES MSCI EAFE INDEX COM 464287465 384 6,539 SH   SOLE   0 0 6,539
ISHARES NASDAQ BIOTECH INDEX COM 464287556 4,756 49,321 SH   SOLE   0 0 49,321
ISHARES RUSSELL 2000 IDX COM 464287655 4,392 32,799 SH   SOLE   0 0 32,799
ISHARES RUSSELL MIDCAP INDEX COM 464287499 5,863 126,143 SH   SOLE   0 0 126,143
JOHNSON & JOHNSON COM 478160104 14,769 114,447 SH   SOLE   0 0 114,447
JPMORGAN CHASE & CO. COM 46625H100 9,010 92,293 SH   SOLE   0 0 92,293
KELLOGG COMPANY COM 487836108 2,472 43,356 SH   SOLE   0 0 43,356
KEYCORP COM 493267108 186 12,600 SH   SOLE   0 0 12,600
KIMBERLY-CLARK CORP COM 494368103 2,560 22,472 SH   SOLE   0 0 22,472
LABORATORY CORP OF AMERICA COM 50540R409 643 5,092 SH   SOLE   0 0 5,092
LINDE PLC COM G5494J103 359 2,300 SH   SOLE   0 0 2,300
LOCKHEED MARTIN COM 539830109 511 1,950 SH   SOLE   0 0 1,950
LOWES COS COM 548661107 10,267 111,158 SH   SOLE   0 0 111,158
M & T BANK CORP COM 55261F104 1,939 13,550 SH   SOLE   0 0 13,550
MANPOWER INC WISCONSIN COM 56418H100 306 4,724 SH   SOLE   0 0 4,724
MARRIOTT INTERNATIONAL, NEW IN COM 571903202 5,799 53,421 SH   SOLE   0 0 53,421
MC DONALD'S CORPORATION COM 580135101 10,309 58,054 SH   SOLE   0 0 58,054
MEDTRONIC INC COM G5960L103 421 4,632 SH   SOLE   0 0 4,632
MERCK & COMPANY INCORPORATED N COM 58933Y105 5,553 72,669 SH   SOLE   0 0 72,669
MICROSOFT CORPORATION COM 594918104 13,202 129,978 SH   SOLE   0 0 129,978
MORGAN STANLEY & CO COM 617446448 591 14,908 SH   SOLE   0 0 14,908
MOTOROLA SOLUTIONS, INC COM 620076307 596 5,184 SH   SOLE   0 0 5,184
NEXTERA ENERGY COM 65339F101 3,797 21,842 SH   SOLE   0 0 21,842
NORFOLK SOUTHERN CORP COM 655844108 265 1,775 SH   SOLE   0 0 1,775
NORTHERN TRUST CORP COM 665859104 869 10,400 SH   SOLE   0 0 10,400
ORACLE CORP COM 68389X105 355 7,868 SH   SOLE   0 0 7,868
PEPSICO INCORPORATED COM 713448108 10,339 93,581 SH   SOLE   0 0 93,581
PFIZER INCORPORATED COM 717081103 1,643 37,645 SH   SOLE   0 0 37,645
PHILIP MORRIS INTERNATIONAL COM 718172109 335 5,025 SH   SOLE   0 0 5,025
PHILLIPS 66 COM 718546104 399 4,626 SH   SOLE   0 0 4,626
PNC FINANCIAL SERVICES GROUP COM 693475105 428 3,664 SH   SOLE   0 0 3,664
POWERSHARES QQQ TR ETF SERIES COM 73935A104 958 6,211 SH   SOLE   0 0 6,211
PROCTER & GAMBLE COMPANY COM 742718109 12,497 135,956 SH   SOLE   0 0 135,956
PUBLIC SERVICE ENTERPRISE GROU COM 744573106 255 4,900 SH   SOLE   0 0 4,900
SAUL CENTERS INC. COM 804395101 330 6,978 SH   SOLE   0 0 6,978
SELECT SECTOR SPDR TR UTILITIE COM 81369Y886 254 4,800 SH   SOLE   0 0 4,800
SMUCKER J.M. CO COM 832696405 468 5,006 SH   SOLE   0 0 5,006
SOUTHERN COMPANY (THE) COM 842587107 2,447 55,711 SH   SOLE   0 0 55,711
SPDR S&P 500 ETF COM 78462F103 282 1,128 SH   SOLE   0 0 1,128
SYSCO CORPORATION COM 871829107 1,093 17,450 SH   SOLE   0 0 17,450
T ROWE PRICE GROUP INC. COM 74144T108 9,401 101,834 SH   SOLE   0 0 101,834
TARGET CORP COM 87612E106 411 6,220 SH   SOLE   0 0 6,220
TEXAS INSTRUMENTS COM 882508104 611 6,465 SH   SOLE   0 0 6,465
THE TRAVELERS COS INC COM 89417E109 495 4,137 SH   SOLE   0 0 4,137
THERMO FISHER SCIENTIFIC COM 883556102 368 1,645 SH   SOLE   0 0 1,645
UDR INC COM 902653104 814 20,549 SH   SOLE   0 0 20,549
UNILEVER COM 904784709 258 4,800 SH   SOLE   0 0 4,800
UNION PACIFIC CORP COM 907818108 5,074 36,708 SH   SOLE   0 0 36,708
UNITED HEALTHCARE CORP COM 91324P102 6,166 24,751 SH   SOLE   0 0 24,751
UNITED TECHNOLOGIES CORP COM COM 913017109 6,383 59,950 SH   SOLE   0 0 59,950
US BANCORP DEL (NEW) COM 902973304 219 4,781 SH   SOLE   0 0 4,781
VANGUARD EMERGING MARKETS ETF COM 922042858 711 18,654 SH   SOLE   0 0 18,654
VANGUARD FTSE DEVELOPED MARKET COM 921943858 1,169 31,519 SH   SOLE   0 0 31,519
VANGUARD INFORMATION TECHNOLOG COM 92204A702 36,647 219,669 SH   SOLE   0 0 219,669
VANGUARD MID CAP ETF COM 922908629 4,634 33,533 SH   SOLE   0 0 33,533
VANGUARD REIT ETF COM 922908553 434 5,815 SH   SOLE   0 0 5,815
VANGUARD S&P ETF COM 922908363 917 3,992 SH   SOLE   0 0 3,992
VANGUARD SMALL CAP ETF COM 922908751 3,586 27,170 SH   SOLE   0 0 27,170
VANGUARD TOTAL STOCK MARKET COM 922908769 2,091 16,380 SH   SOLE   0 0 16,380
VERIZON COMMUNICATIONS COM 92343V104 3,288 58,491 SH   SOLE   0 0 58,491
VISA INC CLASS A COM 92826C839 9,241 70,040 SH   SOLE   0 0 70,040
VULCAN MATERIALS CO COM 929160109 237 2,400 SH   SOLE   0 0 2,400
WAL-MART STORES INC COM 931142103 297 3,192 SH   SOLE   0 0 3,192
WALGREENS BOOTS ALLIANCE, INC. COM 931427108 5,581 81,677 SH   SOLE   0 0 81,677
WALT DISNEY COMPANY COM 254687106 6,443 58,761 SH   SOLE   0 0 58,761
WASH REAL ESTATE INV TRUST S B COM 939653101 2,054 89,325 SH   SOLE   0 0 89,325
WASTE CONNECTIONS INC COM 94106B101 297 4,000 SH   SOLE   0 0 4,000
WEINGARTEN REALTY INVS S B I COM 948741103 2,016 81,244 SH   SOLE   0 0 81,244
WELLS FARGO & CO. NEW COM 949746101 6,023 130,699 SH   SOLE   0 0 130,699
WEYERHAEUSER CO COM 962166104 299 13,661 SH   SOLE   0 0 13,661
ZIMMER BIOMET HOLDINGS INC. COM 98956P102 357 3,440 SH   SOLE   0 0 3,440