673 
Experiment No. 11. 
Quart mixed market milk. 
Bottle immersed in water 5 inclies, 4 inches out. 
No distinct cream line. 
Water 
temper- 
ature. 
Milk temperature. 
Time. 
Colonies, 
per loop 
in agar. 
Remarks. 
Top. 
Bottom. 
°C. 
°C. 
°c. 
Minutes. 
28 
■ 23 
16 
7,100 
40 
23.5 
20 
2| 
50 
24 
23 
4 * 
60 
24.5 
28 
6£ 
70 
25 
32 
8} 
80 
30 
40 
101 
12,000 
85 
Simmering. 
90 
38 
51 
131 
97 
41 
56 
15 
Boiling. 
50 
64 
16 
9, 500 
55 
67 
18 
7,400 
58 
71 
191 
5, 400 
60 
72 
20 
61 
74 
201 
2, 200 
65 
75 
21 
68 
77 
211 
3,600 
70 
78 
22 
1,700 
Experiment No. 12. 
Quart mixed market milk. 
Bottle immersed in water 5 inches, 4 inches out. 
Distinct cream line. 
Water 
temper- 
ature. 
Milk temperature. 
Time. 
' 
Colonies 
per loop 
in agar. 
Remarks. 
Top. 
Bottom. 
°C. 
°a 
°C. 
Minutes. 
. 24 
18 
14 
26, 000 
30 
18. 2 
21 
40 
19 1 
20 
3| 
30, 0C0 
50 
20 
26 
51 
60 
23.5 
30 
71 
70 
31 
35 
91 
80 
37 
41 
111 
84 
39 
44 
12 
Simmering. 
90 
45 
50 
14 
95 
15 
Boiling. 

58 
59 
16 
30, 000 
61 
60 
161 
21, 000 
65 
62 
161 
25, 000 
68 
62.5 
17 
33,000 
70 
63 
171 
18,000 
72 
64 
171 
12,000 
' 74 
65 
IS 
9,000 
75 
66.5 
181 
9,000 
80 
72 ' 
201 
-43 
1414— Bull. 56-09- 
