TYPHOID FEVER IH DISTRICT OF COLUMBIA 
109 
No. 
of 
sam- 
ple. 
1 
2 
5 
8 
27 
3 
4 
6 
7 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
28 
29 
30 
31 
32 
33 
34 
Bacteriological and chemical examination of ice — Continued. 
Dealer or manufacturer. 
Nitrites. 
Nitrates. 
Number 
of bac- 
teria per 
cubic cen- 
timeter. 
Fermentation in lactose 1 
bouillon. 
0.1 cc. 
1 cc. 
10 cc. 
C. L. Balderson 
0. 0005 
0.30 
144 
+ 
American Ice Co 
None. 
.10 
192 
+ 
— 
do 
.0005 
.08 
(?) 
— 
— 
+ 
do 
.0003 
.50 
28 
— 
— 
+ 
American Ice Co. 
.0008 
.03 
650 
— 
— 
— 
(Georgetown) . 
W. E. Young 
None. 
Tr. 
68 
— 
— 
1 
+ j 
John T. Smith 
None. 
.08 
47 
— 
— 
_ 1 
S. Nally 
.0005 
.05 
157 
— 
+ 
W. H. Sanford 
None. 
.10 
161 
— 
+ 
+ 
M. M. Roper 
.0015 
.10 
330 

- 
+ 
tv. A. Sharswood 
.0003 
.50 
(?) 
— 
— 
+ 
Chas. H. Purcell 
.0008 
.20 
(?) 
— 
— 
— 
W. Greenfield 
.0143 
13.5 
17 
— 
— 
— 
W. M. Weaver 
Tr. 
Tr. 
40 
— 
+ 
— 
A. C. Minns 
None. 
. 05 
65 
— 
— 
-1- 
H. H. Warner 
.0008 
.10 
168 
— 
+ 
+ 
W. L. Bishop 
.0020 
.65 
72 
— 
- 
- 
Chapin-Sacks 
112 
+ 
__ 
Hygienic Ice Co 
3 
— 
— 
do 
50 
_ 

4- 
Purity Ice Co 
9 
do 
8 
Home Ice Co 
65 
4- 
do 

7 
Crystal Plate Co 
.0006 
.03 
455 
— 
— 
— 
do 
.0007 
.04 
20 
— 
— 
— 
Georgetown Ice Co 
.0007 
.04 
230 
- 
— 
Home Ice Co 
.0014 
.08 
32 
- 
- 
+ 
do 
,0005 
.08 
5,000 
+ 
+ 
+ 
Hygienic Ice Co 
.0025 
.04 
59 
- 
- 
— 
do 
.0010 
.08 
8 
— 
— 
— 
Chapin-Sacks 
.0071 
.05 
470 
— 
- 
+ 
Purity Ice Co 
.0020 
.04 
4 
- 
- 
- 
do 
■ 
.0008 
.05 
8 
— 
+ 
B. coli 
found 
in. 
cc. 
10 
1 
10 
10 
1 
10 
1 
10 
10 
1 
1 
