Ticker	Issuer	Shares	Value	%	Est. Cost	Unrealized	Class	CUSIP
ADP	Automatic Data Processing	256,756	$22.65M	4.5%	$45.45	+63.0%	COMM	053015103
MA	Mastercard	186,867	$19.02M	3.8%	$70.99	+28.0%	COMM	57636Q104
ECL	Ecolab	145,468	$17.71M	3.5%	$74.34	+46.6%	COMM	278865100
TJX	TJX Companies	233,550	$17.46M	3.4%	$21.34	+60.7%	COMM	872540109
CL	Colgate-Palmolive	217,936	$16.16M	3.2%	$44.45	+33.6%	COMM	194162103
SYK	Stryker	131,259	$15.28M	3.0%	$60.46	+73.5%	COMM	863667101
JNJ	Johnson & Johnson	118,958	$14.05M	2.8%	$60.16	+55.6%	COMM	478160104
NKE	NIKE 'B'	265,519	$13.98M	2.8%	$42.01	+19.0%	COMM	654106103
KO	Coca-Cola	321,566	$13.61M	2.7%	$27.85	+16.9%	COMM	191216100
XOM	ExxonMobil	154,785	$13.51M	2.7%	$53.77	+8.9%	COMM	30231G102
AAPL	Apple	116,573	$13.18M	2.6%	$18.35	+32.0%	COMM	037833100
MKC	McCormick & Co.	124,090	$12.4M	2.4%	$28.25	+50.0%	COMM	579780206
CHD	Church & Dwight	248,229	$11.89M	2.3%	$35.05	+24.7%	COMM	171340102
MCD	McDonald's	89,117	$10.28M	2.0%	$71.80	+31.7%	COMM	580135101
FISV	Fiserv	98,435	$9.791M	1.9%	$25.30	+107.3%	COMM	337738108
ABT	Abbott Labs	229,058	$9.687M	1.9%	$29.43	+22.8%	COMM	002824100
—	Celgene	91,715	$9.587M	1.9%	$101.18	—	COMM	151020104
PG	Procter & Gamble	105,674	$9.484M	1.9%	$55.00	+22.8%	COMM	742718109
PEP	PepsiCo	81,481	$8.863M	1.7%	$56.34	+43.9%	COMM	713448108
ABBV	AbbVie	136,803	$8.628M	1.7%	$26.55	+65.4%	COMM	00287Y109
MSFT	Microsoft	131,370	$7.567M	1.5%	$26.70	+88.3%	COMM	594918104
—	Walgreens Boots Alliance	93,628	$7.548M	1.5%	$76.00	—	COMM	931427108
FDS	FactSet Research Systems	42,626	$6.91M	1.4%	$93.65	+67.1%	COMM	303075105
—	United Technologies	67,127	$6.82M	1.3%	$94.07	—	COMM	913017109
INTU	Intuit	57,426	$6.317M	1.2%	$56.67	+84.0%	COMM	461202103
IDXX	IDEXX Labs	53,306	$6.009M	1.2%	$61.57	+71.2%	COMM	45168D104
ACN	Accenture Ltd. 'A'	45,325	$5.537M	1.1%	$80.68	+21.7%	COMM	G1151C101
BF/B	Brown-Forman 'B'	114,933	$5.452M	1.1%	$28.10	+16.6%	COMM	115637209
QCOM	QUALCOMM	74,526	$5.105M	1.0%	$46.43	+1.0%	COMM	747525103
DHR	Danaher	64,040	$5.02M	1.0%	$29.69	+126.6%	COMM	235851102
—	Praxair	38,929	$4.704M	0.9%	$116.25	—	COMM	74005P104
GILD	Gilead Sciences	58,568	$4.634M	0.9%	$55.92	+3.3%	COMM	375558103
ITW	Illinois Tool Works	38,104	$4.566M	0.9%	$50.91	+82.4%	COMM	452308109
SYY	Sysco Corp.	92,057	$4.512M	0.9%	$24.40	+64.9%	COMM	871829107
SBUX	Starbucks	83,019	$4.495M	0.9%	$39.09	+17.3%	COMM	855244109
BR	Broadridge Financial Solutions	62,748	$4.254M	0.8%	$40.15	+44.8%	COMM	11133T103
NEE	NextEra Energy	34,538	$4.225M	0.8%	$19.29	+28.7%	COMM	65339F101
PFF	iShares S&P US Pfd	105,875	$4.182M	0.8%	$39.46	—	DEBT	464288687
DIS	Disney, Walt	44,594	$4.141M	0.8%	$85.58	+3.8%	COMM	254687106
USB	US Bancorp	90,424	$3.878M	0.8%	$22.74	+31.8%	COMM	902973304
RHHBY	Roche Holding Ltd ADR	122,000	$3.778M	0.7%	$49.05	—	COMM	771195104
VZ	Verizon Communications	67,091	$3.487M	0.7%	$27.25	+20.7%	COMM	92343V104
CVS	CVS Health	38,200	$3.399M	0.7%	$57.13	+24.1%	COMM	126650100
—	Stericycle	41,647	$3.338M	0.7%	$112.40	—	COMM	858912108
LLY	Lilly, Eli	41,350	$3.319M	0.7%	$42.21	+62.5%	COMM	532457108
PAYX	Paychex	54,675	$3.164M	0.6%	$25.79	+75.8%	COMM	704326107
AMT	American Tower 'A'	27,715	$3.141M	0.6%	$73.74	+22.6%	COMM	03027X100
MRK	Merck	50,028	$3.122M	0.6%	$40.15	+8.9%	COMM	58933Y105
NVO	Novo Nordisk ADR	71,131	$2.958M	0.6%	$68.55	—	COMM	670100205
BCPC	Balchem	37,835	$2.933M	0.6%	$48.33	+30.4%	COMM	057665200
—	Weingarten Realty	74,723	$2.913M	0.6%	$35.25	—	COMM	948741103
APD	Air Products & Chemicals	19,007	$2.858M	0.6%	$61.75	+78.0%	COMM	009158106
T	AT&T	69,834	$2.836M	0.6%	$11.56	+40.9%	COMM	00206R102
TSCO	Tractor Supply Company	41,185	$2.774M	0.5%	$15.06	-4.5%	COMM	892356106
—	CDK Global Inc.	44,879	$2.574M	0.5%	$53.99	—	COMM	12508E105
WMT	Wal-Mart Stores	35,279	$2.544M	0.5%	$19.98	+3.1%	COMM	931142103
HP	Helmerich & Payne	37,622	$2.532M	0.5%	$62.73	+0.0%	COMM	423452101
CSCO	Cisco Systems	76,269	$2.419M	0.5%	$15.33	+50.4%	COMM	17275R102
EMR	Emerson Electric	43,661	$2.38M	0.5%	$39.77	+6.3%	COMM	291011104
—	General Electric	79,077	$2.342M	0.5%	$23.23	—	COMM	369604103
MMM	3M Company	12,521	$2.207M	0.4%	$66.30	+64.7%	COMM	88579Y101
UNP	Union Pacific	22,048	$2.15M	0.4%	$74.05	+2.6%	COMM	907818108
LOW	Lowe's	29,775	$2.15M	0.4%	$32.88	+99.0%	COMM	548661107
INTC	Intel	56,755	$2.143M	0.4%	$17.46	+64.0%	COMM	458140100
JKHY	Jack Henry & Associates	24,970	$2.136M	0.4%	$56.11	+39.7%	COMM	426281101
AMGN	Amgen	12,500	$2.085M	0.4%	$73.61	+73.5%	COMM	031162100
PM	Philip Morris Int'l	21,179	$2.059M	0.4%	$49.57	+25.6%	COMM	718172109
GWW	Grainger, W.W.	8,842	$1.988M	0.4%	$204.51	-4.9%	COMM	384802104
WEX	WEX	18,335	$1.982M	0.4%	$94.37	+3.8%	COMM	96208T104
BRK/B	Berkshire Hathaway 'B'	12,350	$1.784M	0.4%	$142.10	+2.9%	COMM	084670702
IBM	IBM	11,141	$1.77M	0.3%	$118.94	-14.4%	COMM	459200101
PFE	Pfizer	52,166	$1.767M	0.3%	$16.45	+35.3%	COMM	717081103
—	Dentsply Sirona	28,667	$1.704M	0.3%	$43.28	—	COMM	249030107
HD	Home Depot	13,134	$1.69M	0.3%	$56.37	+88.6%	COMM	437076102
HSIC	Henry Schein	10,071	$1.641M	0.3%	$38.13	+74.1%	COMM	806407102
AMZN	Amazon.com	1,950	$1.633M	0.3%	$13.43	+185.0%	COMM	023135106
FAST	Fastenal	38,500	$1.609M	0.3%	$8.79	-5.4%	COMM	311900104
BDX	Becton, Dickinson	8,666	$1.558M	0.3%	$78.41	+89.4%	COMM	075887109
EOG	EOG Resources	15,760	$1.524M	0.3%	$58.89	+10.6%	COMM	26875P101
WELL	Welltower, Inc.	20,200	$1.51M	0.3%	$54.00	0.0%	COMM	95040Q104
GOOGL	Alphabet Inc. Class A	1,867	$1.501M	0.3%	$38.48	+0.9%	COMM	02079K305
CTSH	Cognizant Technology	31,356	$1.496M	0.3%	$42.33	+19.2%	COMM	192446102
MPC	Marathon Petroleum	34,838	$1.414M	0.3%	$32.00	-5.2%	COMM	56585A102
VFC	VF Corporation	23,605	$1.323M	0.3%	$61.34	-5.9%	COMM	918204108
EXPD	Expeditors Int'l	25,350	$1.306M	0.3%	$31.69	+42.0%	COMM	302130109
SLB	Schlumberger	16,568	$1.303M	0.3%	$55.37	+9.6%	COMM	806857108
—	Linear Technology	20,623	$1.223M	0.2%	$37.02	—	COMM	535678106
—	Kellogg	15,700	$1.216M	0.2%	$38.92	+40.5%	COMM	487836108
EL	Estee Lauder	13,348	$1.182M	0.2%	$75.02	+7.8%	COMM	518439104
FLO	Flowers Foods	76,100	$1.151M	0.2%	$13.95	-18.0%	COMM	343498101
—	Tiffany	15,640	$1.136M	0.2%	$75.16	—	COMM	886547108
D	Dominion Resources	14,850	$1.103M	0.2%	$34.53	+46.6%	COMM	25746U109
DE	Deere & Company	11,350	$969K	0.2%	$68.04	+3.4%	COMM	244199105
BFS	Saul Centers	14,250	$949K	0.2%	$45.35	—	COMM	804395101
—	Panera Bread	4,577	$891K	0.2%	$184.71	—	COMM	69840W108
—	Dr. Pepper Snapple	9,675	$883K	0.2%	$47.32	—	COMM	26138E109
BMY	Bristol-Myers Squibb	16,276	$878K	0.2%	$45.92	+0.5%	COMM	110122108
ROST	Ross Stores	11,670	$750K	0.1%	$37.48	+49.5%	COMM	778296103
GPC	Genuine Parts	7,460	$749K	0.1%	$62.69	+23.2%	COMM	372460105
ISRG	Intuitive Surgical	1,020	$739K	0.1%	$54.33	+40.9%	COMM	46120E602
—	HCP Inc.	19,200	$729K	0.1%	$43.98	—	COMM	40414L109
FTV	Fortive	14,215	$724K	0.1%	$30.87	0.0%	COMM	34959J108
—	PRA Group	20,415	$705K	0.1%	$71.10	—	COMM	73640Q105
HSY	Hershey Company	7,295	$697K	0.1%	$71.62	+18.2%	COMM	427866108
EQR	Equity Residential Properties	10,720	$690K	0.1%	$31.42	+44.9%	COMM	29476L107
HAIN	Hain Celestial Group	18,475	$657K	0.1%	$60.37	-27.4%	COMM	405217100
CVX	Chevron	6,246	$643K	0.1%	$69.46	-1.4%	COMM	166764100
HPE	Hewlett Packard Enterprise	27,791	$632K	0.1%	$6.50	+45.2%	COMM	42824C109
HCSG	Healthcare Services Group	12,200	$483K	0.1%	$24.06	+62.9%	COMM	421906108
KHC	Kraft Heinz	5,208	$466K	0.1%	$47.82	+21.4%	COMM	500754106
—	HP Inc.	27,700	$430K	0.1%	$25.00	—	COMM	428236103
KIM	Kimco Realty	14,050	$407K	0.1%	$12.78	+49.2%	COMM	49446R109
TRMB	Trimble Navigation Limited	14,160	$404K	0.1%	$29.70	-10.0%	COMM	896239100
DUK	Duke Energy	5,030	$403K	0.1%	$42.21	+33.6%	COMM	26441C204
INGR	Ingredion	3,000	$399K	0.1%	$80.34	+66.3%	COMM	457187102
MO	Altria	5,900	$373K	0.1%	$24.45	+42.1%	COMM	02209S103
CSX	CSX Corp.	12,000	$366K	0.1%	$6.66	+24.4%	COMM	126408103
COP	ConocoPhillips	8,235	$358K	0.1%	$42.95	-27.5%	COMM	20825C104
STT	State Street Corp.	5,104	$355K	0.1%	$57.63	-13.8%	COMM	857477103
—	Noble Energy	9,900	$354K	0.1%	$60.00	—	COMM	655044105
MDLZ	Mondelez Int'l	8,011	$352K	0.1%	$28.45	+23.8%	COMM	609207105
MNST	Monster Beverage	2,400	$352K	0.1%	$24.14	+7.5%	COMM	61174X109
V	Visa	4,250	$351K	0.1%	$60.17	+24.6%	COMM	92826C839
JPM	JP Morgan Chase	5,084	$339K	0.1%	$41.72	+21.9%	COMM	46625H100
ULTA	Ulta Salon Cosmetics	1,405	$334K	0.1%	$165.12	+53.0%	COMM	90384S303
CAT	Caterpillar	3,703	$329K	0.1%	$60.35	+9.4%	COMM	149123101
SEIC	SEI Investments	7,000	$319K	0.1%	$26.47	+57.4%	COMM	784117103
WY	Weyerhaeuser	9,648	$308K	0.1%	$18.42	+19.1%	COMM	962166104
—	Time Warner New	3,610	$287K	0.1%	$86.98	—	COMM	887317303
NOC	Northrop Grumman	1,282	$274K	0.1%	$114.24	+63.0%	COMM	666807102
GIS	General Mills	3,882	$248K	0.0%	$32.23	+55.2%	COMM	370334104
SU	Suncor Energy	8,750	$243K	0.0%	$20.73	-5.9%	COMM	867224107
GOOG	Alphabet Inc. Class C	305	$237K	0.0%	$35.61	+5.8%	COMM	02079K107
—	Aetna	2,000	$231K	0.0%	$127.00	—	COMM	00817Y108
—	L-3 Communications	1,525	$230K	0.0%	$146.89	—	COMM	502424104
—	WGL Holdings	3,650	$229K	0.0%	$54.94	—	COMM	92924F106
CMI	Cummins Inc.	1,750	$224K	0.0%	$84.55	+12.0%	COMM	231021106
BRK/A	Berkshire Hathaway 'A'	1	$216K	0.0%	$199512.94	+9.9%	COMM	084670108
PSX	Phillips 66	2,637	$212K	0.0%	$56.03	-2.9%	COMM	718546104
—	Kayne Anderson	9,987	$206K	0.0%	$38.92	—	COMM	486606106