104 TYPHOID FEVEK IN DISTRICT OF COLUMBIA. 
Results of hacteriological and chemical examination of wells and springs used by the ice 
factories — Continued . 
Total solids. 
No.- 
of 
sam- 
ple. 
Albu- 
minoid 
ammo- 
nia. 
Dis- 
solved 
oxv- 
gen. 
Oxy- 
gen 
con- 
sumed. 
Location. 
Total 
resi- 
due. 
Min- 
eral 
mat- 
ter. 
Vola- 
tile 
mat- 
ter. 
Chlo- 
rine. 
Free 
am- 
monia. 
Ni- 
trites. 
Ni- 
trates. 
Home lee Co., Twelfth 
and V streets NW.: 
238 
Drinking well 
280 
184 
96 
43.5 
0.008 
0. 020 
0. 0001 
5.00 
9. 89 
2.2 
239 
Condensing well 
228 
162 
66 
38.0 
.328 
.016 
.0600 
.75 
6.11 
2.7 
240 
Boiler room 
. 220 
144 
76 
27.5 
.008 
None. 
.0005 
6. 25 
10. 23 
2.7 
241 
U nder engine room . 
176 
126 
50 
21.5 
None. 
None. 
None. 
5.00 
9. 81 
1.2 
Hygienic Ice Co., Fif- 
teenth and E streets 
NE.; 
251 
Under shed 
90 
74 
16 
4.9 
.032 
.010 
.0005 
None. 
1.45 
252 
Gr. I, well 2 
138 
114 
24 
5.9 
.040 
.010 
.0005 
.05 
1.3 
253 
Gr.. I, well 3 
268 
214 
54 
20.0 
.040 
.018 
.0008 
.10 
1.2 
254 
Gr. II, well 1 
204 
182 
22 
20.0 
.016 
.018 
.0008 
. 10 
3.2 
255 
Gr. II, well 2 
106 
92 
14 
4. 1 
.022 
None. 
.0005 
.10 
1. 1 
256 
Gr. II, well 3 
90 
84 
6 
2.8 
.014 
None. 
.0008 
.05 
9.91 
.8 
257 
Gr. II, well 4 
144 
110 
34 
3.3 
.002 
.010 
.0006 
.05 
9. 86 
1.3 
258 
Spring 
266 
170 
96 
32.5 
.002 
.012 
.0016 
12.00 
9. 28 
1.7 
227 
Spring 
295 
Corby Co., Langdon, 
D. C 
182 
166 
16 
5.3 
.011 
.020 
None. 
.08 
.3 
Purity Ice Co., Fifth 
Street Market NW.: 
271 
Well 1 
384 
226 
158 
70.0 
.012 
.006 
.0090 
.50 
.19 
1.4 
272 
Well 2 
142 
118 
24 
13.8 
None. 
None. 
None. 
None. 
2. 26 
.8 
273 
Well 3 
4.7 
.008 
.004 
Tr. 
.50 
None. 
1.5 
Auth Provision Co., 
Seventh street and 
Virginia avenue S W.: 
265 
Well 1, 60 feet 
228 
160 
68 
32.3 
.118 
.002 
.0017 
None. 
2.94 
.9 
266 
Well 2, 39 feet 
610 
458 
152 
144.5 
None. 
None. 
.0002 
30.00 
5. 81 
1.0 
268 
Chas. Javins & Sons, 
930 C street N W 
218 
160 
58 
3.4 
.084 
None. 
.0031 
1.00 
.3 
1.3 
267 
Center Market, Seventh 
street N W 
304 
226 
78 
48.0 
.246 
.016 
.0002 
None. 
1.9 
