192 



Milk and Its Products 



in the work done by the different machines of the 

 same style and manufacture. This variation is due 

 to slight peculiarities in the construction of the in- 

 dividual bowls, and which cannot be detected by 

 the ordinary senses, and only appear upon an ex- 

 amination of the skimmed milk after actual use. 

 These differences are well illustrated in a series of 

 trials made in different factories,* and shown in 

 detail in the following tables: 



ALEXANDRA JUMBO 



Rated capacity, 3,000 pounds per hour 



DE LAVAL, ALPHA NO. 1 



Bated capacity, 2,500 pounds per hour 



* Cornell University Agricultural Experiment Station, Bulletin No. 105. 



