ANIMAL CHEMISTRY. 



NOTE (1,) p. 14. 



CONSUMPTION OF OXYGEN BY AN ADULT. 



Jin adult man. 



, Carbon contained. 



According to 



cubic in. grains. 



Lavoisier and Seguin 46,037 15,661 

 Menzies .... 51,480 17,625 



Davy 45,504 15,751 



Allen and Pepys . . 39,600 13,464 



consumes of oxygen produces of carbonic in the 



in 24 hours. acid in 24 hours. carbonic acid. 



cubic in. 



14,930 



pams. 

 ,584 



31,680 17,811 

 39,600 18,612 



4,853 

 5,148 



French. 

 English 



do. 



do. 



NOTE (2,) p. 14. 



COMPOSITION OF DRY BLOOD (see Note 28.) 



In 100 parts. In 4-8 Ibs. Hessiam = 36,864 grains. 



Carbon. . . 51-96 . . . 19154-5 



Hydrogen. . 7-25 . . . 26727 



Nitrogen . . 15-07 . . . 5555-4 



Oxygen . . 21-30 . . " 7852-0 



Ashes . . 4-42 . . . 1629-4 



100-00 36864-0 



Grains. Grains. 



19154-5 carbon form, with 50539-5 oxygen, carbonic acid. 

 2672'7 hydrogen do. 21415-8 do. water. 



Sura = 71955-3 



Deduct oxygen present __ 7852-0 

 in blood . . . J 



do. 



Remain 64103-3 grains of oxygen, required for the 

 complete combustion of 4-8 Ibs. of dry blood. 



It is assumed in this calculation, that 24 Ibs. of blood yield 4-8 Ibs. (20 per cent.) of 

 dry residue. The remainder, 80 per cent., is water. 



NOTE (3,) p. 14. 

 DETERMINATION OF THE AMOUNT OF CARBON EXPIRED. 



1. ANALYSIS OF 



Fo&ces. 



2-356 dry faeces left 0-320 ashes (13-58 per cent.) 

 0-352 dry faeces yielded 0-576 carbonic acid, and 0-218 water. 



Lentils. 

 0-566 lentils, dried at 212, yielded 0-910 carbonic acid, and 0-366 water. 



Pease. 



1-060 pease, dried at 212, left 0-037 ashes. 

 0-416 do. do. yielded 0-642 carbonic acid, and 0-241 water. 



Potatoes. 

 0-443 dried potatoes yielded 0-704 carbonic acid, and 0-248 water. 



Black Bread (Schwarzbrod.} 



0-302 dried black bread yielded 0-496 carbonic acid, and 0-175 water. 

 0-241 do. 0-393 do. 0-142 do. 



From the above, which are the direct results of experiment, the composition in 100 

 parts is calculated as in the following table. 



2. COMPOSITION 



Of Faeces. Of Black Bread. Of Potatoes. Of Flesh. 



Water 



100-00 100-00 100-00 100-0 100-000 

 300-00 



400-00 



