410 ANIMAL BODY: 



Nasal bone of a girl Lumbar vertebra 1 of a woman 



aged 15 years. aged 40 years. 



Phosphate of lime, with T 



fluoride of calcium .} 45 ' 77 44 ' 05 



Carbonate of lime . 3-77 3'45 



Phosphate of magnesia 1'45 1'02 



Salts . . 1-10 1-70 



Cartilage . . 38-62 41-42 



Fat 9-29 8-36 



Necrosis. The following analysis was made by Von Bibra : 



Phalanx of a man 

 aged 40-50 years. 



Phosphate of lime, with fluoride of calcium . 72-63 



Carbonate of lime . . . .4-03 



Phosphate of magnesia . . .1-93 



Salts ..... 0-61 



Cartilage ..... 19-58 

 Fat ..... 1-22 



This small amount of organic matter is not characteristic of 

 necrotic bone, for in two minute portions thrown off after frac- 

 tures Von Bibra found : 



1. 2. 



Organic matter . . 37 -8 7 31-58 



Inorganic matter . . 60-77 67-33 



Fat 1-36 1-09 



Osteoporosis. Ragsky has analysed a specimen of osteopo- 

 rosis growing on the cranium of an aged person. It yielded 

 gelatin when boiled. It contained : 



Phosphates of lime and magnesia . 55-80 



Carbonate of lime and salts . . 5-59 



Cartilage, vessels, and fat . . 38-61 



1 In the cavity of this bone, produced by the caries, there was a thick, reddish 

 yellow matter, like inspissated pus. It consisted of 81-3 parts of water and volatile 

 matter, and 18-7 of solid constituents. The latter contained in 100 parts : 



Albuminous matter . 19'7 



Alcohol-extract and lactates . 0'9 



Water-extract . . 2-4 



Shreds of cartilage . 51-0 



Fat . 7-2 



Fixed salts . . 18-8 containing 90g of phosphate of lime. 



