WHY CREAM TESTS VARY 105 



ing a cream separator is to select one with a too 

 small capacity. Except for those people who only 

 keep one or two cows, I do not advocate the use of 

 any machines with a capacity of less than 45 

 gallons per hour. The life of small machines is far 

 shorter than that of larger-sized ones, owing to the 

 increased time required for separation and the exces- 

 sive speed at which they have to be driven ; neither 

 do they perform such good work, especially if 

 worked for any length of time, as the machine has 

 to be frequently stopped to enable the bowl to be 

 cleaned out, which owing to its small capacity easily 

 becomes clogged. 



To ensure good work being performed by any 

 separator, the first thing to attend to is to see that 

 the machine is firmly set up on a solid foundation, 

 care being taken to ensure that the latter is perfectly 

 level. These points are too frequently neglected, 

 with the result that the machine quickly gets out of 

 order, and clean skimming becomes almost im- 

 possible. In selecting a foundation for a machine, 

 it should be borne in mind that those types of 

 machines which have a suspended bowl can be 

 placed directly on a cement floor, a cement block, 

 or solid stone foundation. All other machines 

 which have not the suspended type of bowl can be 

 similarly fixed, but must have a wooden cushion 

 inserted between the base of the machine and the 

 solid block foundation. This latter precaution I 



