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The particular object of these tests was to determine which 

 of these methods could be specially recommended to the dairy- 

 men of this State, for accuracy, simplicity of the apparatus 

 required, and ease of manipulation. Since, as already shown, 

 they do not differ essentially in accuracy, the selection of the 

 method to be recommended must be based on the two other 

 points. All things considered, Cochran's method seems to be 

 clearly preferable to the others, in these two respects. A full 

 working description of that method is therefore given, essentially 

 as by the author himself in the original article, although in some 

 parts with much more fullness in detail, so that with proper care 

 in following directions no one need go amiss. 

 The apparatus required : 



i. The fat-measure, fig. i, a flask with a graduated tube, b e, 

 and a side tube a. 



•f 



