POTOMAC EIVEE WATEE SUPPLY EELATIVE TO TYPHOID FE^T:E. 265 
Summary of the bacteriological examinations of tap water. 
No. 
Location. 
Date. 
Number 
of bac- 
teria per 
cubic 
centi- 
meter. 
Fermentation 
tose broth 
in lac- 
B.coh 
in — 
0.1 cc. 
1 cc. 
10 cc. 
1906. 
cc. 
9 
ill2 Tenth street NW 
July 16 
200 



4 
3 F street NW . 
do ... 
60 
1 
7 
1523 Seventh street NW 
July 17 
23 
10 
811 Thirteenth street NW 
do ... 
90 
-1- 
10 
12 
25 Defrees street NW 
July 18 
74 
— 
— 
+ 
10 
16 
1706 Twelfth street NW 
do . . . 
40 


-j_ 
10 
19 
Facing 442 N street NW. (hvdrant) 
July 19 
54 
— 
+ 
-1- 
20 
448 0 street NW. (alleyl 
do ... 
75 


-t- 
22 
2 Thomas circle NW 
do . . . 
40 
-1- 
olO 
25 
643i Third street NE . . .... 
July 20 
22 
27 
516 D street NE 
do . . . 
72 
+ 
31 
909 Fourth street SE 
July 23 
189 
— 
+ 
a 10 
33 
607 E street SE 
do 
64 


+ 
39 
115 Eleventh street NE 
July 24 
33 
41 
235 C street SW 
do 
58 
43 
1521 Thirtv-fifth street NW 
July 25 
42 
-t- 
47 
2900 P street NW 
do ... 
42 
4- 
10 
49 
20 Seventh street SE 
July 26 
33 
50 
808 East Capitol street 
do 
23 
51 
537 Kentuckv avenue SE 
do . . . 
21 
52 
415 Delaware avenue SW 
do ... 
16 
-f- 
10 
54 
1003 E street SW 
do . . . 
50 
-t- 
10 
55 
1215 Potomac street NW 
July 27 . 
25 
— 
— 
-i 
10 
56 
1302 Thirty-sixth street NW 
do 
31 



59 
1522 Twenty-sixth street NW 
do 
30 
60 
2814 Pennsylvania avenue NW 
do ... 
34 
66 
1432 Thirty-sixth street NW 
July 31 
684 
-t- 
+ 
-(* 
1 
68 
1301 Thirtieth street NW 
do 
24 



69 
1243 Thirtieth street NW 
....do... 
37 
70 
1023 Twenty-sixth street NW 
do 
38 
73 
412 L street NW 
Aug. 1 
49 
74 
1906 Eleventh street NW 
do 
55 
+ 
75 
1118 Union court NW. (hydrant) 
do . . . 
125 
+ 
10 
-76 
2125 L street NW 
do ... 
34 
78 
1667 Euclid street NW 
Aug. 2 
36 
79 
1872 V street NW 
. do 
22 
80 
2148 Florida avenue NW 
do 
57 
81 
21 42 K street NiV 
....do ... 
39 
82 
1249 Twenty-ninth street NW 
Aug. 3 
51 
-f- 
83 
3267 N street NW 
. . do 
18 
84 
3616 P street NW 
. do 
41 
+ 
85 
1511 Thirty-fourth street NW 
do . . . 
237 
-1- 
4- 
1 
86 
' 2820 P street NW 
do 
32 
_ 
4- 
87 
1432 Thirty-sixth street NW. (hydrant) . . . 
do . . . 
88 
— 
-i 
4- 
10 
90 
1621 Minnesota avenue, Anacostia 
Aug. 6 
24 
— 
— 
— 
98 
3284 N street NW 
Aug. 7 
9 
- 
- 
— 
99 
3207 P .street NW 
do . . . 
•) 


— 
100 
2812 Pensvlvania avenue NW 
do ... 
? 
— 
— 
- 
118 
732 Eighth street NW 
Aug. 10 
28 
- 
- 
— 
119 
. 414 Twenty-first street NW 
do . . . 
54 
— 
— 
4- 
a No indol. 
