Table 9. — Results of analyses of the waters of shallow wells in the District of Columbia, northeast section — Continued. 
332 
TYPHOID FEVER IX 
DISTRICT OF COLUMBIA. 
p c S 
C ^ u s 
OQ 
cc 
Ter 
cent of 
satu- 
ration. 
o 
Tom- 
por- 
aturc. 
C 
o 
Dis- 
solved 
oxy- 
go?.. 
, , 
d 
