150 
TYPHOID FEVEE m DISTEICT OF COLUMBIA. 
Bacteriology of the shallow wells in the District of Columbia — Continued. 
No. 
Location. 
Date. 
Number 
of bac- 
teria per 
cubic 
centi- 
meter. 
Ferment in lac- 
bouiUon. 
B. coli present. 
0.1 cc. 
1 cc. 
10 cc. 
0.1 cc. 
1 cc. 
10 cc. 
Southeast — Continued. 
1906. 
390 
Stanton and Pomeroy streets 
Oct. 8 
68 
L 
do 
July 26 
’ 
208 
Stanton School 
Aug. 29 
19 
_ 
— 
— 
— 
_ 
391 
do 
Oct. 8 
500 
L 
do 
July 26 
620 
209 
Twentieth and Joliet streets 
Aug. 29 
26,250 
-h 
-t- 
-i 
— 
— 
300 
do 
Sept. 19 
241 
-1- 
+ 
392 
do 
Oct. 8 
110 
L 
do 
July 26 
270 
385 
T Street hill 
Oct. 8 
97 
422 
Ninth and E streets 
Oct. 11 
20 
+ 
+ 
L 
do 
J uly 10 
Note. — In these tables the number in the first column refers to our laboratory number. The analyses 
marked “I/’ were made by Mr. F. F. Longley, chief chemist and assistant superintendent of the filtra- 
tion plant. The latter data are included for completeness and comparison, and have been furnished 
through the kindness of Capt. Spencer Cosby, U. S. Army. 
For miscellaneous water supplies, such as Soldiers’ Home, St. 
Elizabeth’s, Ghevy Chase, etc., and for details of chemical analyses of 
all these well waters, see Section XII, pages 360 and 328. 
