492 
SEDGWICK AND WINSLOW- 
BACILLUS OF TYPHOID FEVER, 
Race A. 
Series I. 
Eace a. 
Series II. 
of Tul>«. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
n 
12 
11 
itf 
17 
IS 
19 
20 
N h*»r I ^"^^^^S^- Number Bacteria per c.c. 
Unfrozen Water. 
8750 
910 
4910 
14G5 
900 
2475 
1260 
13G0 
1535 
1030 
35210 
22575 
530G0 
8575 
94580 
1 1 0235 
140175 
95725 
4002 
229050 
Thawed Ice. 
21 
4 
1 
1 
4 
3 
10 
1 
7 

3 
1 
1 
4 
3 
2 
Keductiou 
per cent. 
99.8 
99.5 
99. 9 -f 
99.9 
99.8 
99.8 
99.2 
99.9+ 
99.3 
100.0 
99.9 -(- 
99.9+ 
99.9+ 
99.9+ 
99.9 
99.9+ 
■ivcrar/e 99.8 
Tubes 1-10, frozen Marcli 2, 1898, in 1| liours; thawed 
May 25, after lH ii-eeks. 
Tiil.es 11-20, frozLii March 4, 1898, in 2 liours; thawed 
May 27, after 12 weeks. 
r 
Average Number Bacteria per c.c. 
Number 
of Tube. 
21 
22 
23 
21 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
Unfrozen "Water 
10655 
7695 
3170 
4265 
90825 
79625 
5920 
275 
5400 
2085 
11480 
24637 
214200 
2760 
10430 
32110 
12757 
26547 
15155 
19890 
Thawed Ice. 
17 
42 
2 
2 
1 
2 
6 
1 
1 
3 
2 
12 
9 
7 
113 
4 
7 
4 
8 
1 
Reduction 
per cent. 
99.8 
99.4 
99.9 
99.9 
99.9+ 
99.9+ 
99.9 
99.6 
99.9+ 
99.9 
99.9+ 
99.9 
99.9+ 
99.7 
98.9 
99.9+ 
99.9 
99.9+ 
99.9 
99.9+ 
Average 99.8 
Tubes 21-30, frozen March 7, 1808, in 1\ liours; thawed 
May 2, after 8 weeks. 
Tubes 31-40, frozen March 12, 1898, in 2^ hours ; tliawed 
May 7, after 8 weeks. 
Eace A. 
Series III. 
Eace A. 
Series IV. 
N\nii1)er 
of Tube. 
Average Number Bacteria per c.c 
Unfrozen Water. 
Thavredl 
3730 
6 
7880 
5 
2810 
6 
710 
7 
4470 
4 
9026 
3 
10482 
2 
3035 
12 
2085 
5710 
136710 
41 230 
82215 
26285 
22225 
19145 
Control 
1 2320 
10850 
10920 
11 
6 
5 
3 
1 
5 
1 
3 
Control 
2 
4 
3 
Reduction 
per cent. 
99.8 
99.9 
99.8 
99.0 
99.9 
99.9+ 
99.9+ 
99.6 
99.5 
99.9 
99.9+ 
99.9+ 
99.9+ 
99.9 
99.9+ 
99.9+ 
99.9+ 
99.9+ 
99.9+ 
Average gg^g 
A^^O'I^'!:^:'-'^ ''' ^^««> n '.ours ; thawed 
Number of 
Tube. 
51 
52 
53 
54 
55 
56 
57 
58 
59 
60 
71 
72 
73 
74 
75 
76 
77 
78 
79 
80 
Average Number Bacteria per c.c, 
Unfrozen Water. 
24640 
49000 
48930 
40450 
29340 
282240 
44380 
132300 
24185 
93555 
55650 
Control 
52395 
9230 
86870 
46025 
1740 
41825 
S3 1 55 
23250 
Thawed Ice. 
3 
25 
10 

GO 
SO 
65 
110 
50 
25 
75 
Control 
35 
70 
60 
25 
25 
6 
35 
30 
Reduction 
per cent. 
99.9 
99.9+ 
99.9 
99.8 
99.9 
99.9+ 
99.7 
99.9+ 
99.9 
99.9 
99.9 
99.2 
99.9 
99.9 
98.6 
99.9+ 
99.9 
99.9 
~Z '■ t)9 8 
Average *' 
Tubes 51-60, frozen March 18, 1898, in 
April 1, after 2 weeks. 
Tubes 71-80, frozen March 21,1 898, in 
April 4, after 2 weeks. 
\\ hours ; thawed 
oUionrs; thawed 
'2t 
