96 STORRS AGRICULTURAL EXPERIMENT STATION 

Fic. 34—Photograph of the ‘“‘North’” covered milk pail used in ex- 
periments given in table 23. 
The series of experiments given in Table 23 show the results 
obtained by using the pail with and without the strainer 
cloth. The samples were obtained in the same manner as 
those for the preceding series of tests, that is, samples were 
taken from the mixed milk of two lots of five cows each, the 
two groups being alternated from day to day in order to 
avoid any difference due to the bacterial content of the milk 
of the different cows. In this series of experiments half of 
the individual tests are in favor of using the strainer cloth 
while the other half are in favor of omitting the cloth from 
the pail. While there is apparently no difference in favor 
of either method as shown by the relative numbers of bacteria 
in the individual tests there is on the whole a difference in 
favor of using the strainer as shown by the averages for the 
two series of samples. The milk drawn into the pail with the 
strainer contained an average of 890 bacteria or 77 per cent. 
