LECT. III.] GENERAL FLUID COMPONENTS. 123 



fonnity of distribution ; and although so nume- 

 rous and different from each other in their sen- 

 sible qualities and chemical properties., yet are they 

 all composed of different modifications of the same 

 principles, carbon, hydrogen, and oxygen. Thus 

 100 parts of gum, according to the experiments 

 of Gay Lussac and Thenard *, consist of 

 42.23 of carbon, 



6.93 of hydrogen, and 

 50.84 of oxygen, the oxygen and hydrogen 



being nearly in the same relative 



100.00 proportions as they are contained 



in water. 



100 parts of common resin consist of 

 75.944 of carbon, 



15.156 of a combination of oxygen and hy- 

 drogen in the same proportions as 

 they exist in water, and 

 8.900 of hydrogen in excess. 



100. 



100 parts of olive oil consist of 

 77.213 of carbon, 



10.712 oxygen and hydrogen, as in water, and 

 12.075 of hydrogen in excess. 



100. 



* Recherches physico-chimigues, t. ii. p. 290. 



