VALUATION OF FERTILIZERS, ETC. 457 



Wood ash ought to be bought and sold on guaranty of 

 composition ; inferior wood ashes arc liable to conic from all 

 sections of the country. 



The composition of the sample of leached ashes (No. II.) 

 resembles closely that of a previously reported one from 

 Detroit, Mich. (See Bulletin 5, No. 108; or First An- 

 nual Report, page 102.) 



[I. Canada ashes, sent on by H. C. Haskell, of Deerfield, Mass.] 

 [II. Canada ashes, sent on by Edmund Hobart, North Amherst, Mass.] 



Ashes. 



[Sent on by Messrs. John B. Moore & Son, Concord, Mass.] 



Moisture at 100° C, 

 Calcium oxide, . 



Potassium oxide, 

 Magnesium oxide, 

 I'hosphoric acid, 

 Insoluble matter. 



Per cent. 



8.60 

 35.80 

 4.25 

 3.91 

 2.01 

 16.08 



Fertilizer. 



[Sent on by W. H. Earl & Co., Worcester, Mass.] 



Moisture at 100° C, . 



Ash, 



Organic and volatile matter. 

 Calcium oxide, . 

 Phosphoric acid, 

 Nitrogen, .... 

 Insoluble matter. 



Per cent. 



26.20 



28.15 



71.85 



20.59 



.45 



2.63 



1.95 



As the nitrogen in this material is present in the form of 



