
144. REPORT OF THE DIRECTOR OF THE 
as contrasted with the opposite character of the Jersey and 
Guernsey milks, is very remarkable. | 
The bearing of these facts upon the deportment of milk in the 
process of creaming is obvious, but the matter will be discussed 
further on. Another table gives the actual average diameter in 
fractions of an inch of the milk globules of each cow during each 
month of lactation, and it will be seen that while the average 
diameters of the globules of the milk of the different animals » 
differ very widely, there is, in every case, a gradual diminution in 
the size of the globules during the successive months of lactation. 
Another table gives the average number and sizes of the milk 
globules, the average number counted at each examination, the 
average size and diameter and the number of microscopic analyses 
made of the milk of each animal during the entire period of ~ 
lactation. 
It comprises the results of an actual count and measurement of 
44.836 globules from the milk of fifteen cows of the six breeds 
under investigation. There were in all 454 examinations, with an 
average of ninety-nine globules measured and counted at each 
examination, and averaging thirty examinations for each cow. 
These details are given in order that the proper degree of 
confidence in the recorded results may be determined. 
Still another table gives the average size of milk globules of 
each animal and for each breed during the entire period of lacta- 
tion, and this table also shows the general grouping of the several 
breeds as is more plainly seen when we compare the number of 
globules of each size, as is shown upon page 161. 

