COMMERCIAL FERTILIZERS. 



343 



Chittenden's Fish and Potash. 



(National Fertilizer Company, Bridgeport, Conn.; collected of Slate & DeWoIf, 

 Greenfield, Mass ) 



Guaranteed composition : Total phosphoric acid, 6 to 8 

 per cent. ; potassium oxide, 3 to 4 per cent. ; ammonia, 4 to 

 5 per cent, (equivalent to nitrogen, 3.3 to 4.1 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble i^hosphoric acid, 

 Keverted phosiihoric acid, 

 Insoluble i)hosplioric acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Per cent . 



18.83 

 9.28 

 .61 

 5.45 

 3 22 

 6.33 

 4.13 



Valuation per two thousand pounds : 



12.2 pounds of soluble phosphoric acid, 

 109. pounds of reverted phosphoric acid, 



64 4 pounds of insoluble phosphoric acid, 

 126.6 pounds of i^otassium oxide, . 



82 6 poimds of nitrogen, 



$30 51 



H. L. Phelps' Complete Manure. (Swift Sure Guano and 



Potash.) 



(Manufactured by M. L. Shoemaker & Co , Philadelphia, Pa. ; collected of Slate & 

 DeWolf, Greenfield, Mass.) 



Guaranteed composition : Soluble and reverted phosphoric 

 acid, 3 to 4 per cent. ; insoluble phosphoric acid, 4 to 5 per 

 cent. ; potassium oxide, 5 to 6 per cent. ; ammonia, 4 to 5 

 per cent, (equivalent to nitrogen, 3.3 to 4.1 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phos2)horic acid, 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, , 



Per cent. 



8.15 

 9.07 

 259 

 2.27 

 4 21 

 4.92 

 3,2:3 

 3.23 



