New York Agricultural Experiment Station. 313 



Table III. — Amounts of Calcium and Magnesium in Insoluble Portion of 



Milk. 



The data in Table IV are derived by calculation from the figures 

 given in Tables II and III for the purpose of reducing them to a 

 uniform basis that permits us to make comparison more easily. 



Table IV. — Amounts of Acids and Bases Expressed as Gram Equivalents. 



Cow 

 No. 



(1) 



1 

 2 



3 



3 



4 



5 



5 



6 



7 



7 



8 



9 



10 



11 



12 



13 



Casein as 



gram 

 equiva- 

 lents of 

 octavalent 

 acid. 



(2) 



31.3x10 



24.5 



25.0 



36.8 



27.8 



25.9 



24.3 



26.3 



30.6 



32.0 



32.2 



31.1 



27.9 



30.2 



28.3 



44.7 



Insoluble 

 inorganic 

 phos- 

 phates 

 as gram 

 equiva- 

 lents of 

 di-basic 

 acid. 

 (3) 



13.1 xlO 

 23 . 1 

 20.5 



18.1 " 

 32.0 " 

 16.8 " 



22.2 " 

 28.7 " 



17.4 " 

 26.9 



22 . 3 



27 . 5 

 17.0 " 

 27 . " 

 35.5 " 

 32.9 



Sum of 

 gram 

 equiva- 

 lents 

 of 

 casein and 

 phos- 

 phates. 



(4) 



44 4 x 10 



47.6 



45.5 



54.9 



59.8 



42.7 



46.5 



55.0 



48.0 



58.9 



54.5 



58.6 



44.9 



57.2 



63.8 



77.6 



Insoluble 

 calcium 

 as gram 

 equiva- 

 lents. 



(5) 



43.6x10 



43.5 



40.9 



51.2 



57.0 



43.2 



40.1 



52.0 



46.9 



53 

 53 

 53 



43 



51 



62.3 



74.9 



Insoluble 



mag- 

 nesium as 

 gram 

 equiva- 

 lents. 



(6) 



Sum 

 of the 

 insoluble 

 calcium 

 and mag- 

 nesium 

 as gram 

 equivalents. 



(7) 



1.1 x 10 



1.0 

 2.7 

 1.9 

 4.2 



9 

 8 

 2 

 1 

 7 

 6.1 



44 

 45 

 44 

 52 

 61 

 45 

 41 

 54 

 48 

 57 

 56 

 57 

 45 

 55 

 68 

 81 



7x10 



1 







4 " 



6 



9 " 



1 



7 



8 " 



9 " 

 3 " 

 " 

 6 " 

 2 





 



Excess of 

 insoluble 

 base (+) 



or acid ( — ) 

 as gram 



equivalents. 



(8) 



+0.3 x 

 —2.5 

 —1.5 

 —2.5 

 + 1.8 

 +3.2 

 —5.4 

 —0.3 

 +0.8 

 —1.0 

 +1.8 

 —1.6 

 +0.7 

 —2.0 

 +4.2 

 +3.4 



10 



