Bactei'ia in Market Milk. 



Colostrum : 

 1. 2. 



77,000 82,900 

 71,000 76,400 



In order to furnish a few examples, several experimental 

 results will be cited from the work of Grimmer. 



Koning found in various samples of freshly drawn milk the 

 following numbers of bacteria per c. c. : 



Milk: 

 1 2. 3. 



immediately 107,000 143,000 18,510 



after 6 hours 96,000 142,000 16,000 



after 12 hours 74,000 



after 18 hours 120,000 155,000 14,700 56,000 



after 24 hours 13,200 115,000 



after 30 hours 145,000 470,000 13,800 115,000 



after 36 hours 2,050,000 



after 42 hours 490,000 800,000 106,000 > 596,000 



The slight diminution of the bacterial content of this experi- 

 mental series could of course not be attributed to the existence of 

 a specific germicidal action, but rather to errors in our methods, or 

 to the elective action of media, since the differences are relatively 

 slight. 



The results are more apparent in the tables of Eullmann and Trommsdorff : 

 Keeping at room temperature: 



In special samples with small bacterial count the comparison was still more striking: 



