150 



CONDITION OF THE BONES. 



The bones of our skeleton differ from those of most others. In color they 

 are of a light brown, not being darkened as much as usual by the oxide of 

 iron. In specific gravity they are lighter than recent bones, being divested 

 of a portion of their gelatine, but still retaining not an inconsiderable part, 

 as appears by the following analysis of Dr. C. T. Jackson, who had the 

 goodness to undertake it at my request, and repeated his experiments a 

 number of times in order to be certain of their accuracy, viz. : — 

 Analysis "A portion of the epiphysis of a vertebral bone yielded, when dried 



bvDr. 



c. t. Jack- at 300° Fahrenheit, — 



son. 



Animal matter (bone cartilage) 27.73 



Bone earth (phosphate and carbonate of lime) and phosphate of iron .... 72.27 



100.00 



" A portion of the bone with cancelli yielded, by drying at a little 

 above 212°, Fahrenheit, — 



Water 6 



Bone earth, (phosphate and carbonate of lime) and phosphate of iron .... 64 

 Bone cartilage 30 



100 



