670 
Experiment No. 5. 
Pint mixed market milk. 
Bottle immersed in water 4 inches, 3 inches out. 
Recently mixed, no distinct cream line. 
Water 
temper- 
ature. 
Milk temperature. 
Time. 
Colonies 
per loop 
in agar. 
Remarks. 
Top. 
Bottom. 
°C. 
°a 
°C. 
Minutes. 
30 
23 
16 
480 
40 
22 
20 
I 5 
50 
24 
23 i 
3f 
60 
25 
27 
5 
70 
! 27 
33 
6j 
80 
29 
37 
8 
812 
86 
32 
46 
9 
Simmering. 
90 
33 
48 
91 
! 36 
64 
lOA 
98 
40 
bl 
lOJ 
Boiling. 
50 
65 
12i 
760 
65 
70 
13i 
150 
68 
74 
14i 
58 
60 
75 
16 
35 
63 
80 
16i 
0 
66 
81 1 
17 
1 
70 
19i 
1 
Experiment No. 6. 
Pint mixed market milk. 
Bottle immersed in water 3 inches, 4 inches out. 
No cream line. 
Water 
temper- 
ature. 
Milk temperature. 
Time. 
Colonies 
per loop 
in agar. 
Remarks. 
Top. 
Bottom. 
°C. 
°C. 
°C. 
Minutes. 
24 
13 
1,500 
At start. 
40 
17 
3 
50 
20 
4 
60 
24 
20 
5i 
70 
29 
24 
6i 
80 
36 
30 
8 
87 
9 
Water simmering. 
90 
44 
38 
91 
96 
101 
100 
65 
49 
111 
1,800 
Water boiling. 
100 
60 
64 
121 
1,700 
100 
65 
61 
131 
230 
100 
68 
64 
141 
Scum 1,300. 
100 
70 
67 
151 
55 
100 
72 
69 
16 
Scum 1,500. 
100 
76 
73 
17 
6 
73 
Scum 2,000. 
