Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
ADP	Automatic Data Processing	254,981	$21.67M	4.3%	$45.45	+52.1%	COMM	053015103
MA	MasterCard	190,352	$18.46M	3.6%	$70.99	+29.9%	COMM	57636Q104
ECL	Ecolab	155,660	$17.75M	3.5%	$74.34	+41.5%	COMM	278865100
TJX	TJX Companies	242,165	$17.19M	3.4%	$21.34	+44.8%	COMM	872540109
NKE	NIKE 'B'	262,874	$16.56M	3.3%	$42.01	+34.9%	COMM	654106103
CL	Colgate-Palmolive	230,925	$15.47M	3.1%	$44.45	+18.2%	COMM	194162103
KO	Coca-Cola	336,615	$14.47M	2.9%	$27.85	+10.7%	COMM	191216100
XOM	ExxonMobil	185,039	$14.43M	2.8%	$53.77	-4.4%	COMM	30231G102
JNJ	Johnson & Johnson	138,438	$14.26M	2.8%	$60.16	+26.2%	COMM	478160104
AAPL	Apple, Inc.	119,450	$12.54M	2.5%	$18.28	+40.7%	COMM	037833100
SYK	Stryker	134,707	$12.53M	2.5%	$60.46	+41.0%	COMM	863667101
CHD	Church & Dwight	136,560	$11.61M	2.3%	$26.53	+41.4%	COMM	171340102
MKC	McCormick & Co.	128,890	$11.09M	2.2%	$28.25	+23.2%	COMM	579780206
—	Celgene	92,315	$11.08M	2.2%	$101.18	—	COMM	151020104
MCD	McDonald's	93,225	$11M	2.2%	$71.80	+21.5%	COMM	580135101
ABT	Abbott Labs	243,104	$10.94M	2.2%	$29.43	+24.2%	COMM	002824100
—	Stericycle	82,952	$10.04M	2.0%	$112.40	—	COMM	858912108
FISV	Fiserv	103,800	$9.446M	1.9%	$25.30	+85.6%	COMM	337738108
ABBV	AbbVie	148,842	$8.782M	1.7%	$26.55	+43.0%	COMM	00287Y109
PG	Procter & Gamble	110,745	$8.749M	1.7%	$55.00	+5.3%	COMM	742718109
PEP	PepsiCo	83,916	$8.392M	1.7%	$56.34	+30.4%	COMM	713448108
—	United Technologies	86,641	$8.318M	1.6%	$94.07	—	COMM	913017109
—	Walgreens Boots Alliance	96,078	$8.167M	1.6%	$76.00	—	COMM	931427108
MSFT	Microsoft	137,600	$7.568M	1.5%	$26.70	+72.0%	COMM	594918104
FDS	FactSet Research Systems	37,290	$6.078M	1.2%	$86.99	+73.7%	COMM	303075105
BF/B	Brown-Forman 'B'	60,172	$5.957M	1.2%	$23.35	+49.2%	COMM	115637209
INTU	Intuit	59,966	$5.817M	1.1%	$55.80	+60.1%	COMM	461202103
GILD	Gilead Sciences	56,538	$5.71M	1.1%	$55.67	+31.0%	COMM	375558103
RHHBY	Roche Holding Ltd ADR	167,730	$5.703M	1.1%	$49.05	—	COMM	771195104
DHR	Danaher	57,089	$5.309M	1.0%	$25.44	+50.3%	COMM	235851102
ACN	Accenture Ltd. 'A'	49,910	$5.241M	1.0%	$80.68	+11.5%	COMM	G1151C101
NVO	Novo Nordisk ADR	80,420	$4.664M	0.9%	$68.55	—	COMM	670100205
—	Praxair	45,609	$4.652M	0.9%	$116.25	—	COMM	74005P104
EOG	EOG Resources	57,860	$4.108M	0.8%	$58.89	+1.6%	COMM	26875P101
SYY	Sysco Corp.	99,788	$4.091M	0.8%	$24.40	+29.0%	COMM	871829107
IDXX	IDEXX Labs	55,924	$4.082M	0.8%	$61.57	+15.9%	COMM	45168D104
USB	US Bancorp	93,474	$4.019M	0.8%	$22.53	+31.4%	COMM	902973304
NEE	NextEra Energy	38,474	$4.001M	0.8%	$19.29	+1.1%	COMM	65339F101
QCOM	QUALCOMM	77,751	$3.888M	0.8%	$46.43	-13.9%	COMM	747525103
SBUX	Starbucks	61,154	$3.669M	0.7%	$36.54	+35.2%	COMM	855244109
—	General Electric	114,515	$3.55M	0.7%	$23.23	—	COMM	369604103
LLY	Lilly, Eli	41,750	$3.507M	0.7%	$42.21	+65.1%	COMM	532457108
ITW	Illinois Tool Works	37,604	$3.497M	0.7%	$50.16	+42.3%	COMM	452308109
VZ	Verizon Communications	70,383	$3.238M	0.6%	$27.13	-0.8%	COMM	92343V104
UNP	Union Pacific	40,191	$3.135M	0.6%	$74.05	-7.8%	COMM	907818108
CVS	CVS Health	29,960	$2.936M	0.6%	$52.87	+37.3%	COMM	126650100
PAYX	Paychex	54,005	$2.862M	0.6%	$25.43	+51.6%	COMM	704326107
TSCO	Tractor Supply Company	32,655	$2.808M	0.6%	$14.96	+1.6%	COMM	892356106
MRK	Merck	52,658	$2.791M	0.6%	$40.15	-8.4%	COMM	58933Y105
AMT	American Tower 'A'	26,315	$2.553M	0.5%	$73.08	+3.9%	COMM	03027X100
APD	Air Products	19,169	$2.492M	0.5%	$61.75	+58.6%	COMM	009158106
BR	Broadridge Financial Solutions	46,116	$2.49M	0.5%	$36.70	+28.2%	COMM	11133T103
BCPC	Balchem	39,685	$2.421M	0.5%	$48.33	+26.9%	COMM	057665200
T	AT&T	70,725	$2.405M	0.5%	$11.42	+8.8%	COMM	00206R102
—	CDK Global Inc.	48,843	$2.296M	0.5%	$53.99	—	COMM	12508E105
PM	Philip Morris Int'l	25,754	$2.266M	0.4%	$49.57	+5.5%	COMM	718172109
LOW	Lowe's	29,775	$2.263M	0.4%	$32.88	+87.7%	COMM	548661107
WMT	Wal-Mart Stores	36,894	$2.251M	0.4%	$19.98	-16.8%	COMM	931142103
INTC	Intel	64,405	$2.19M	0.4%	$17.46	+52.7%	COMM	458140100
MMM	3M Company	13,981	$2.111M	0.4%	$66.30	+38.9%	COMM	88579Y101
CSCO	Cisco Systems	78,045	$2.107M	0.4%	$15.28	+31.9%	COMM	17275R102
HP	Helmerich & Payne	38,772	$2.094M	0.4%	$62.73	-11.8%	COMM	423452101
EMR	Emerson Electric	42,902	$2.059M	0.4%	$39.72	-8.1%	COMM	291011104
GWW	Grainger, W.W.	10,082	$2.047M	0.4%	$204.51	-14.5%	COMM	384802104
AMGN	Amgen	12,465	$2.019M	0.4%	$73.61	+58.3%	COMM	031162100
JKHY	Jack Henry & Associates	25,485	$1.988M	0.4%	$55.86	+21.7%	COMM	426281101
IBM	IBM	13,859	$1.913M	0.4%	$118.94	-26.4%	COMM	459200101
PFE	Pfizer	59,505	$1.904M	0.4%	$16.45	+23.8%	COMM	717081103
HD	Home Depot	14,156	$1.869M	0.4%	$56.37	+77.4%	COMM	437076102
FLO	Flowers Foods	87,550	$1.839M	0.4%	$13.95	+17.6%	COMM	343498101
—	Dentsply Int'l	29,872	$1.822M	0.4%	$41.41	—	COMM	249030107
HAIN	Hain Celestial Group	42,855	$1.714M	0.3%	$60.37	-24.9%	COMM	405217100
HSIC	Henry Schein	10,775	$1.702M	0.3%	$38.13	+55.9%	COMM	806407102
MPC	Marathon Petroleum	32,409	$1.685M	0.3%	$32.14	+18.5%	COMM	56585A102
WEX	WEX	18,978	$1.67M	0.3%	$94.27	-3.8%	COMM	96208T104
FAST	Fastenal	40,346	$1.654M	0.3%	$8.79	-14.3%	COMM	311900104
BRK/B	Berkshire Hathaway 'B'	12,144	$1.603M	0.3%	$142.09	-5.6%	COMM	084670702
CTSH	Cognizant Technology	24,905	$1.494M	0.3%	$39.91	+43.2%	COMM	192446102
—	Weingarten Realty	42,298	$1.48M	0.3%	$32.07	—	COMM	948741103
AMZN	Amazon.com	2,050	$1.386M	0.3%	$13.43	+134.8%	COMM	023135106
BDX	Becton, Dickinson	8,591	$1.323M	0.3%	$78.41	+57.4%	COMM	075887109
—	PRA Group	34,970	$1.224M	0.2%	$71.10	—	COMM	73640Q105
SLB	Schlumberger	16,787	$1.175M	0.2%	$55.37	+1.3%	COMM	806857108
DIS	Disney, Walt	11,174	$1.173M	0.2%	$69.40	+47.3%	COMM	254687106
—	Tiffany	15,440	$1.173M	0.2%	$75.19	—	COMM	886547108
EXPD	Expeditors Int'l	25,350	$1.141M	0.2%	$31.69	+34.3%	COMM	302130109
—	Kellogg	15,700	$1.13M	0.2%	$38.92	+17.4%	COMM	487836108
PFF	iShares S&P US Pfd	28,525	$1.112M	0.2%	$39.50	—	DEBT	464288687
BMY	Bristol-Myers Squibb	15,609	$1.077M	0.2%	$46.06	+1.4%	COMM	110122108
DE	Deere & Company	13,417	$1.02M	0.2%	$68.04	-4.4%	COMM	244199105
D	Dominion Resources	14,850	$1.01M	0.2%	$34.53	+29.1%	COMM	25746U109
—	Dr. Pepper Snapple	10,675	$993K	0.2%	$47.32	—	COMM	26138E109
—	Johnson Controls	25,075	$978K	0.2%	$37.22	—	COMM	478366107
—	Panera Bread	4,985	$972K	0.2%	$184.71	—	COMM	69840W108
—	Welltower, Inc.	13,727	$933K	0.2%	$67.32	—	COMM	42217K106
—	Linear Technology	21,323	$896K	0.2%	$37.02	—	COMM	535678106
VFC	VF Corporation	14,185	$879K	0.2%	$63.70	-2.0%	COMM	918204108
EQR	Equity Residential Properties	10,720	$879K	0.2%	$31.42	+48.9%	COMM	29476L107
BFS	Saul Centers	14,500	$740K	0.1%	$45.35	—	COMM	804395101
—	HCP Inc.	19,200	$730K	0.1%	$43.98	—	COMM	40414L109
HSY	Hershey Company	7,975	$710K	0.1%	$71.65	-1.8%	COMM	427866108
CVX	Chevron	7,567	$681K	0.1%	$69.54	-16.0%	COMM	166764100
GIS	General Mills	11,414	$662K	0.1%	$32.23	+25.6%	COMM	370334104
GPC	Genuine Parts	7,560	$650K	0.1%	$62.69	+4.0%	COMM	372460105
ROST	Ross Stores	11,500	$621K	0.1%	$36.81	+25.6%	COMM	778296103
IRBTQ	iRobot	17,090	$598K	0.1%	$31.89	+1.4%	COMM	462726100
STT	State Street Corp.	8,954	$591K	0.1%	$57.63	-10.0%	COMM	857477103
ISRG	Intuitive Surgical	1,020	$557K	0.1%	$54.33	+3.4%	COMM	46120E602
—	Roche Holdings AG Genusschein	2,000	$548K	0.1%	$249.00	—	COMM	012875495
V	Visa	5,925	$462K	0.1%	$59.95	+20.4%	COMM	92826C839
KHC	Kraft Heinz	6,319	$461K	0.1%	$47.82	-1.6%	COMM	500754106
COP	ConocoPhillips	9,770	$459K	0.1%	$43.30	-11.4%	COMM	20825C104
WFC	Wells Fargo	8,460	$457K	0.1%	$29.24	+39.7%	COMM	949746101
—	Bank of America	26,494	$450K	0.1%	$16.00	—	COMM	060505105
CAT	Caterpillar	6,578	$447K	0.1%	$60.35	-9.6%	COMM	149123101
HCSG	Healthcare Services Group	12,700	$445K	0.1%	$24.06	+51.1%	COMM	421906108
MO	Altria	7,333	$425K	0.1%	$23.90	+23.3%	COMM	02209S103
HPE	Hewlett Packard Enterprise	27,791	$417K	0.1%	$6.50	0.0%	COMM	42824C109
JPM	JP Morgan Chase	6,134	$405K	0.1%	$41.72	+19.1%	COMM	46625H100
MDLZ	Mondelez Int'l	8,791	$396K	0.1%	$28.41	+24.9%	COMM	609207105
—	Noble Energy	11,400	$376K	0.1%	$60.00	—	COMM	655044105
DUK	Duke Energy	5,197	$369K	0.1%	$41.93	+10.6%	COMM	26441C204
SEIC	SEI Investments	7,000	$364K	0.1%	$26.47	+73.2%	COMM	784117103
MNST	Monster Beverage	2,400	$358K	0.1%	$24.14	0.0%	COMM	61174X109
KIM	Kimco Realty	13,500	$351K	0.1%	$12.61	+25.9%	COMM	49446R109
NOC	Northrop Grumman	1,850	$350K	0.1%	$114.24	+36.2%	COMM	666807102
—	HP Inc.	27,791	$333K	0.1%	$25.00	—	COMM	428236103
—	Royal Dutch Shell PLC 'A'	7,048	$324K	0.1%	$63.96	—	COMM	780259206
SU	Suncor Energy	12,150	$316K	0.1%	$20.73	-7.2%	COMM	867224107
CSX	CSX Corp.	12,000	$312K	0.1%	$6.66	+17.0%	COMM	126408103
TRMB	Trimble Navigation Limited	14,760	$310K	0.1%	$29.70	-30.0%	COMM	896239100
NSC	Norfolk Southern	3,640	$309K	0.1%	$64.91	+6.5%	COMM	655844108
EL	Estee Lauder	3,448	$303K	0.1%	$58.25	+28.4%	COMM	518439104
INGR	Ingredion	3,000	$288K	0.1%	$80.34	+18.0%	COMM	457187102
—	Marathon Oil	20,839	$271K	0.1%	$35.68	—	COMM	565849106
ULTA	Ulta Salon Cosmetics	1,455	$269K	0.1%	$165.12	+4.6%	COMM	90384S303
ORCL	Oracle Corp.	7,035	$260K	0.1%	$28.11	+16.7%	COMM	68389X105
—	DuPont	3,786	$254K	0.1%	$67.09	—	COMM	263534109
—	Bed Bath & Beyond	5,210	$250K	0.0%	$67.80	—	COMM	075896100
—	Sirona Dental Systems	2,250	$248K	0.0%	$87.06	—	COMM	82966C103
REGN	Regeneron Pharmaceuticals	455	$247K	0.0%	$422.88	+27.4%	COMM	75886F107
—	Plum Creek Timber	5,100	$245K	0.0%	$48.04	—	COMM	729251108
GOOGL	Alphabet Inc. Class A	305	$237K	0.0%	$36.73	0.0%	COMM	02079K305
—	Time Warner New	3,610	$235K	0.0%	$86.98	—	COMM	887317303
CMI	Cummins Inc.	2,655	$234K	0.0%	$84.55	-10.3%	COMM	231021106
GOOG	Alphabet Inc. Class C	305	$231K	0.0%	$35.61	0.0%	COMM	02079K107
—	WGL Holdings	3,650	$230K	0.0%	$54.94	—	COMM	92924F106
—	Aetna	2,000	$216K	0.0%	$127.00	—	COMM	00817Y108
—	Kayne Anderson	10,929	$186K	0.0%	$38.92	—	COMM	486606106