PRODUCTION OF MILK OF LOW BACTERIAL CONTENT. 11 
From the results it is possible to determine something of the value 
of the small-top as compared with that of the open pail. The average 
of the bacterial counts of milk from the small-top pail as given in 
Table 2 was about 5,500 bacteria per cubic centimeter lower than that 
of milk from the corresponding open pail. The true value of the 
small-top pail, however, is more definitely shown in figure 5, in which 
the bacterial count of each sample of milk is shown and plotted in 
columns. The comparative heights indicate the difference in the 
number of bacteria per cubic centimeter in milk from open and small- 
_top pails at the same milking. In 29 of the 36 samples the bacterial 
count of milk from the open pail was higher than that from the small- 
top. The results confirm the conclusions of previous investigators 
as to the value of the small-top pail. 
EXPERIMENT NO. 3. (COWS AND FLOOR DIRTY, MANURE REMOVED TWICE A 
WEEK, UDDERS AND TEATS OF THE COWS WASHED, UTENSILS STERILIZED). 
In Experiment No. 2 the use of sterilized utensils, as has been 
shown, resulted in a remarkable lowering of the bacterial count. In 
Experiment No. 3, where sterilized utensils were used, a second factor 
was introduced, which consisted in washing the udders and teats of 
the cows. 
The condition of the barn, as shown in figure 6, was the same as in 
the previous experiments except that the manure was removed twice 
Fig, 6,—Condition of barn during Experiment No. 3. 
