New York Agricultural Experiment Station, 



95 



Since the milk from Farms B, C and D all had a low bacterial 

 content, the counts are combined in a general summary (Table VII) 

 which has been drawn up in the same way that the summary for Farm 

 A was drawn up in Table III. 



Table VII. — Combined Summary of Bacterial Counts of Milk from Farms 



B, C and D. 

 Numbers computed for a cubic centimeter. 



Table VIII. — Combined Summary of Bacterial Counts of Milk from Farms 



. A, B, C and D. 

 Numbers computed for a cubic centimeter. 



*Each clump and each isolated bacterium counted as one; individual bacteria in 

 clumps not counted. 



If a comparison is made between Table III and Table VII, it 

 will be seen that the ratios are markedly similar. The chief dif- 

 ference occurs where the plate count is between 10,000 and 100,000 

 in which case the ratios in Table III are somewhat higher than 

 the same ratios in Table VII. This is apparently due to the fact 



