PROPERTIES, ETC. 47 



u The most abundant constituent of the 

 seed," says Wanklyn, " is the fat, or cocoa- 

 butter, which constitutes about one-half of 

 the entire seed. Owing, no doubt, to this 

 circumstance, the specific gravity of the 

 seeds is less than unity, and they float on 

 water. After being kept for some days 

 in contact with the water some of the fat 

 makes its escape, and the seeds sink to the 

 bottom. 



" I attach great importance to the deter- 

 mination of the ash. The following deter- 

 minations of ash have been recently made 

 in my laboratory : 



Percentage of 

 Ash? 



Common Trinidad 3-37 



Very fine Trinidad . . ., , : f 3.62 



Fair, good, fine Trinidad . . . 3.64 



Fine Granada . . _.';" . . . 3.12 



Medium Granada . ., .... 3.06 



Caracas .... *. 5' . ; > ~ ; 4 45^ 



Bahia (Brazil) . ; , i -.-_ . ; 3.31 



