118 



ACTION OF SALTS. 



wood ashes ; yellow pine — {pinus ahits) — as the type of soft 

 wood ashes ; and wheat straw as the type of the ashes of the 

 grasses. 



The average quantity of ashes from 100 parts of dry oak, 

 beech, birch, &c., is 2.87. Ashes are divided imperfectly by 

 the simple process of leeching, into two parts, one soluble, 

 and the other insoluble in water. 100 parts of hard wood 

 ashes would afford, of soluble, 13.57 ; of insoluble, 86.43 

 parts, if perfectly separated. 



99.86 



100 parts of the insoluble contain , 



100. 



Pine — (pinus abies) — 100 parts of dry wood afford only 

 .83 lb. of ashes ; of which 100 parts afford of soluble, 50 ; 

 of insoluble, 50. 



