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. 
30 
°C. 
23 
°C. 
16 
Minutes. 
4S0 
40 
22 
20 
1* 
50 
24 
23 
3f 
60 
25 
27 
5 
70 
27 
33 
6* 
80 
29 
37 
8 ; 
812 
86 
32 
45 
9 
Simmering. 
90 
33 
48 
9* 
91 
36 
54 ; 
104 
98 
40 
57 ! 
101 
Boiling. 
50 
65 ; 
12* : 
760 
55 ; 
70 : 
13* 
150 
58 
74 
14* 
58 
60 
75 
15 
35 
63 
80 
161 
0 
65 | 
81 
17 
1 
70 
85 
19* 
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 
40 
17 ! 
3 ! 
j At start. 
50 
20 
4 

60 
24 
20 
5| 1 
70 
29 
24 
6* 
80 
35 
30 
8 . 
87 
9 i 
Water simmering. 

90 
44 | 
j 38 
9* 
95 
10* ' 
100 
55 
49 
n* ! 
1,800 
Water boiling. 
100 
60 | 
^ 54 
12 * ; 
1,700 
100 
65 | 
61 
13 * ; 
230 
100 
68 | 
64 
14* ; 
Scum 1,300. 
100 
70 
67 
15* j 
55 
100 
72 
69 
16 
Scum 1,500. 
100 
75 
73 
17 
6 
73 
Scum 2,000. 
| 
