THE ALCOHOL TEST IN RELATION TO MILK. 27 
Table 21. — Alcohol titrations of pasteurized market milk. 
Alcohol til ra- 
Alcohol titra- 
Sam- 
Bacteria 
tion. 
Sam- 
Bacteria 
tion. 
ple 
No. 
Acid- 
ity. 
per cubic 
centimeter. 
ple 
No. 
Acid- 
ity. 
per cubic 
centimeter. 
90 per 
SO per 
90 per 
80 per 
cent. 
cent. 
cent. 
cent. 
c. c. 
c. c. 
c. c. 
c. c. 
1 
1.77 
1,200 
2.20 
5.71 
13 
1.70 
65,000 
2.88 
5.04 
2 
1.70 
11,000 
2.84 
6.76 
14 
1.75 
6S,000 
2.40 
5.50 
3 
1 . 65 
12,000 
3.08 
8. SO 
15 
1.80 
71,000 
2.50 
4.49 
4 
1.85 
13, 000 
1.56 
4.43 
16 
1.85 
104,000 
2.43 
3.96 

1.7.3 
14,000 
1.65 
3.10 
17 
1.70 
120, 000 
2.10 
5.96 
6 
1.75 
15,000 
2.22 
3.42 
18 
1.75 
194, 000 
3.05 
6.01 
7 
1.70 
16,000 
2.76 
4.10 
19 
1.73 
264, 000 
2.24 
3.00 
8 
1.78 
21,000 
2.33 
5.91 
20 
1.70 
284,000 
2.86 
5.48 
9 
1.80 
24,000 
1.69 
6.10 
21 
1.76 
446, 000 
1.82 
5.34 
10 
1.90 
59, 000 
2.57 
3.68 
22 
1.60 
1,600,000 
2.10 
4.78 
11 
1.85 
62,000 
2.23 
5.47 
23 
1.97 
2,460,000 
2.08 
3.66 
12 
1.60 
63,000 
2.53 
3. 24 
24 
1.60 
3,100,000 
3.53 
7.07 
Table 22. — Average alcohol titrations of samples of raiv and pasteurized market milk in 
tables 20 and 21. 
Milk. 
Number 
of 
samples. 
Bacteria per cubic 
centimeter. 
Average alcohol 
titration. 
90 per 
cent. 
80 per 
cent. 
46 
46 
3 
21 
More than 500,000 . 
Less than 500,000.. 
More than 500,000.. 
Less than 500,000.. 
c. c. 
1.95 
2.39 
2.57 
2.28 
c. c. 
4.61 
5.61 
5.17 
5.02 
Pasteurized . . 
Table 23. — Range in alcohol titrations of market milk shown in detail in tables 20 and21. 
Bacteria per cubic centimeter. 
Alcohol titration. 
90 per cent. 
80 per cent. 
Lowest. 
Highest. 
Lowest. 
Highest. 
26 samples with less than 100,000 
30 samples with from 100,000 to 1,000,000 
36 samples with over 1 ,000,000 
c. c. 
0.51 
1.24 
.52 
c. c. 
3.64 
3.54 
3.04 
c. c. 
0.93 
1.80 
.60 
c. c. 
11.73 
10.45 
10.83 
For the sake of clearness we have plotted in figure 1 the bacterial 
counts and the 90 per cent alcohol titration. In this figure the 
titrations of 116 samples of milk were plotted as ordinates and the 
logarithms of the bacterial counts as abscissae. The numbers 3, 4, 
5, 6, 7, and 8 represent the mantissa of the logarithms of the bacterial 
counts. Consequently from 3 to 4 was plotted the logarithm of 
samples with a bacterial count of from 1,000 to 9,999, from 4 to 5 
counts from 10,000 to 99,999, and so on, as may be seen from the 
figure. By this method of plotting it is possible to plot bacterial 
counts ranging from low to high numbers, which would otherwise be 
