TABLE 4 



PERCENTAGE OF CALCIUM OXID IN BONE ASH 



TABLE 5 



PERCENTAGE OF PHOSPHATE (P 2 O 5 ) IN DRIED BONE 



The phosphate content of the ash is rather variable. On comparing 

 Tables 5 and 6, it will be seen that although the amount of phosphate in 

 the dried bone is decreased to about two-thirds the normal, the amount in 

 the ash is nearly unchanged. In other words, the decrease in the amount 

 of calcium in the ash is partly made up by an increase in the relative 

 amount of phosphate. 



TABLE 6 



PERCENTAGE OF PHOSPHATE (P 2 O 3 ) IX BONE ASH 



The amount of magnesium is increased. This, taken in connection 

 with the changes in calcium and phosphate content, means that the ratio 

 of the magnesium phosphate to that of the calcium phosphate is increased 

 over the normal. This alone is sufficient evidence to reject the hypothesis 



