27 



v 



Tlie dry matter consisted of 28 lbs. of organic elements, 



10 " inorganic " 



So that there were altogether 144 lbs. of oxygen, carbon, 

 hydrogen, and nitrogen, to 10 of all others. 



If 100 lbs. of human blood be rendered perfectly dry, it 

 will be reduced in weight to something less than 22 lbs. ; 

 and this dry matter consists of essentially the same siil)- 

 stances as the several varieties of animal and vegetable 

 food. 



100 parts of blood contain 



93 per cent, of fibrine, albumen, etc., 

 2 " " fat, sugar, and starch, 



5 " " saline or mineral matter. 



100 parts of /?6n7ig contain 

 54.454 of carbon, 



7.069 '^ hydrogen, 

 15.762 " nitrogen, 

 22.715 " oxygen, sulplinr, phospliorus. 



100.000 



100 parts of albumen contain 

 55 of carbon, 



7 " h^^drogen, 

 15 " nitrogen, 

 23 " oxygen. 



100.000 



Sugar W O'' C* 



Starch R'' 0'« C'-' 



Fat H^^O^ C^"' 



It seems very singular that the solid matter of animals 

 should contain nearly the same quantity of water as the 

 liquid blood; but it is a still more striking fact, that the 

 dry animal matter that remains, when lean muscular fibre 

 and blood are fully dried, has the same composition : 



