V. The Milk ashes consist, according to Fleischmann, in the 

 average, of 



Phosphoric anhydride, (P2O5) 28.31 



Chlorine, (CI) 16.34 



Lime, (CaO) 27.00 



Potassa, (K2O) 17.34 



Soda, (Na,0) 10.00 



Magnesia, (MgO) 4.07 



Iron sesquioxide, (FejOs) ■ ■ 0.62 



103.68 

 Deduct for corresponding Ci, 3.68 



100.00 

 The quantity of salts in the milk ranges from 0.4 to 0.8 per 

 cent. They contain generally all those nutritive salts which have 

 been taken with the food. 



VI. The gases of milk are carbon-dioxide, nitrogen and 

 oxygen, the first predominating. They are of little importance. 



YII. The extractive substances: They have been found in 

 small quantities in the milk, and include the following substances : 

 urea, ki-eatinine, leucine, tyrosine and lecithine. 



YIII. In small quantities, coloring substances, and such which 

 give to milk its characteristic flavor. They vary with the season 

 and food, and are met with in larger quantities during the summer 

 season. 



Composition of Other Milks compared 

 Avith Cows' Milk. 



Milks from other animals differ from cows' milk in composition 

 according to the position occupied by the animals in the zoological 

 system, and according to their food (herbivora or carnivora). 



The following tabulated statement gives average values derived 

 fi"om a series of exact analyses of normal milks : 



Species. Sp. gr. Water. Salts. Albumen. Fat. Sugar 



of Milk. 



White woman 1.025-1.035 88-90 0.20-0.50 3.0-4.0 3.0-4.0 4.0-6.0 



Negro " 1.025-1.037 86-90 0.30-0.75 3.0-4.0 4.0-5.0 5.0-6.0 



Milkof single cows.. 1.025-1.038 86-89 0.50-0.75 3.5-5.0 3.0-4.5 3.5-5 



Mare 1.031-1.036 90-92.5 0.25-0.50 1.5-3.0 0.5-1.5 4.5-6.5 



Ass 1.030-1.036 89-93 0.25-0.50 1.5-3.0 1.0-3.5 4.5-6.0 



Goat 1.028-1.036 85-87 0.50-0.75 4.0-6.0 3.5-5.0 3.5-5.5 



Sheep 1.034-1.042 80-85.0.50-1.25 4.0-6.5 4.0-7.0 4.0-6.0 



Hog 83-85 0.75-1.25 5.0-7.0 5.5-7.0 2.0-5.0 



Camel 1.035-1.043 85-87 0.50-0.75 3.0-4.0 3.5-3.5 5.0-6.5 



Of the milk of other animals only a few, and then often incom- 

 plete analyses of doubtful value could be found ; their mention 

 has therefore been omitted. 



