COMMERCIAL FERTILIZERS. 



301 



Chittenden's Complete Fertilize?- (Seeding Down, and Pastures) 

 (Collected of J. A. Sullivan, Northampton, Mass.) 



Guaranteed composition : Total phosphoric acid, 9 to 1 1 

 per cent. ; soluble phosphoric acid, 3 to 4 per cent. ; uvail- 

 nl)le phosphoric acid, 4 to H per cent. ; ammonia, 3 to 4 pen- 

 cent, (equivalent to nitrogen, 2.5 to 3.3 per cent.) ; potassi- 

 um chloride, 5 to 7 per cent, (equal to from 3.16 to 4.42 

 per cent, of potassium oxide). 



Moistur ' at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, 

 Nitrogen, 

 Insoluble matter, 



Valuation per two thousand pounds : — 



80.G pounds of soluble phosphoric acid, 

 .S4.4 pounds of reverted phosphoric acid, 

 42.6 pounds of insoluble phosphoric acid, 

 70. pounds of potassium oxide, . 

 50.8 pounds of nitrogen, 



Per cent. 



15.70 

 7.88 

 4.03 

 1.72 

 2.13 

 3.50 

 2.54 

 3.80 



$8 06 

 3 10 



1 92 



2 97 

 10 16 



$26 21 

 Soluble Pacific Guano. 



(Glitlden & Curtis, Boston, Mass. ; collected of J. A. Wright, Northampton, Mass.) 



Guaranteed composition; Moisture, 10 to 12 per cent.; 

 soluble phosphoric acid, 6.5 to 8 per cent. ; reverted phos- 

 phoric acid, 2 to 3 per cent. ; available phosphoric acid, 8 to 

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

 nitrogen, 2 to 3 per cent, (equivalent to ammonia, 2.5 to 

 3.5 per cent.) ; potassium oxide, 2 to 3^ per cent. 



Per cent. 



Moisture at 100° C 15.08 



Total phosphoric acid, 11.46 



Soluble phosphoric acid, 5.76 



Reverted phosphoric acid, 1.51 



Insoluble phosphoric acid, 4.19 



Potassium oxide, 2.20 



Nitrogen (in organic matter), 1.81 



Nitrogen (in ammonia salts), .37 



Nitrogen (in nitrates), .61 



Insoluble matter, 3.08 



