OF ARTS AND SCIENCES. 



109 



It appears from the average of these two series of analysis that in 

 this experiment the two breeds of cows gave milk that averaged 

 almost exactly the same composition, with the exception of the yield 

 of flit ; the Jersey giving on the average nearly one half more fat 

 than the Ayrshire. The average result of the thirty-four analyses of 

 pure milk, twenty-two of which were reported kst December, and 

 twelve now, is as follows : — 



Sp. Gr 1.030 



Cream vol. p. c 13.8 



Sugar 4.82 



Caseine 4-06 



Ash 65 



Solids not Fat 9.53 



Fat 4.62 



Total Solids 14.15 



Water 85.85 



100.00 



"With these analyses to judge from, it seems to me that an inspector 

 of milk is fully justified in asking a conviction from the courts, if, when 

 the theoretical milk containing 12.5 per cent of solids is taken as a 

 standard, each of the three proportions starting from total solids, solids 

 not fat, and sugar, show an addition of fifteen per cent or over of water. 



