THE GENERAL COMPOSITION OF MILK 13 



with the variations in the various constituents, and represented 

 the results graphically. One of these diagrams is given on p. 14. 

 It shows the drop in the total amount of milk towards the end 



Jersey Cows 



of lactation and the accompanying rise in certain of the con- 

 stituents. The ratio of the protein nitrogen to the total nitro- 

 gen was found to be fairly constant throughout. This final 

 tendency to a rise in the total nitrogen is the reverse of that found 



