COMMERCIAL FERTILIZERS. 



301 



Chittenden's Complete Fertilizer {Seeding Down, and Pastures) 

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



Guaranteed composition : Total phosphoric acid, to 1 1 

 per cent. ; soluble phos})horic acid, 3 to 4 per cent. ; avail- 

 able phosphoric acid, 4 to G per cent. ; ammonia, 3 to 4 per 

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

 um chloride, 5 to 7 per cent, (equal to from 3.10 to 4.42 

 per cent, of potassium oxide). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, 

 Nitrogen, 

 Insoluble matter, 



Per cent. 



15,70 

 7.88 

 4.03 

 1.72 

 2.13 

 3.50 

 2.54 

 3.80 



Valuation per two thousand pounds : — 



80.6 pounds of soluble phosphoric acid, 

 34.4 pounds of reverted phosphoric acid, 

 42.6 pounds of insoluble phosphoric acid, 

 70. pounds of potassium oxide, . 

 50.8 pounds of nitrogen, 



126 21 

 Soluble Pacific Guano. 



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



Guaranteed composition : jNIoisture, 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.) ; potassiiun oxide, 2 to 31^ per cent. 



