ANALYTICAL EVIDENCE. 271 



NOTE I. P. 12. 



CONSUMPTION OF OXYGEN BY AN ADULT, a 

 JLn Mull Man 



~ * v Carbon contained 



consumes of oxygen produces of carbonic in the 



According to in 24 hours acid in 24 hours carbonic acid. 



cubic in. grains, cubic in. grains, grains. 



Lavoisier and Seguin 46,037 15,661 14,930 8,584 2,820 French. 

 Menzies .... 51,480 17,625 English. 



Davy .... 45,504 15,751 31,680 17,811 4,853 do. 



Allen and Pepys . 39,600 13,464 39,600 18,612 5,148 do. 

 a Gmelin, Brande's Manuel, p. 1198. 



NOTE II. P. 13. 

 COMPOSITION OF DRY BLOOD (SEE NOTE 28). 



In 100 parts. In 4'8.1bs. Hessian = 36,864 grains. 



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



Hydrogen . . 7-25 2672-7 



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. 



Sum = 71955-3 do. 

 Deduct oxygen present ) _ 

 in blood . . . . / 



Remain 64103-3 grains of oxygen, required 

 for the complete combustion of 4-8 Ibs. of dry blood.f 



It is assumed, in this calculation, that 24 Ibs. of blood 

 yield 4-8 Ibs. (20 per cent.) of dry residue. The remain- 

 der, 80 per cent., is water. 



t Or 63685-6, H = 12-478 and C = 76-437. 



