842 Index. 



Wood, amount of air in ii, 441. 



moisture attracted by various species of . ii, 455. 

 and charcoal, new experiments upon . . . ii, 362-369. 



dry, amount of water in ii, 452. 



heat developed in combustion of . . . . ii, 405, 468-481. 



lost in carbonization of ii, 481. 



how converted into charcoal ii, 436. 



quantity of charcoal obtained from different kinds 



of ii, 4 6l 



specific gravity of solid parts of ii, 437. 



Wool, explanation of warmth of i, 462 ; iii, 46. 



Cambridge : Press of John Wilson & Son, 

 I 



