COMMEECIAL FERTILIZERS. 



357 



Chlorine, 

 Sulphuric acid, 

 Insoluble matter, 



Per cent. 



9.25 



5.32 



23.55 



This fertilizer is evidently a mixture of wood ashes, gyp- 

 sum, salt and lime compounds ; one sample was very defi- 

 cient in available phosphoric acid. It ought to sell at the 

 cost of ordinary wood ashes. 



Flamingo Guano. 



(Flamingo Guano Company, Liebig & Gibbons, General Agents, Baltimore, Md.; 

 collected of J. B. Cover & Co., Lowell, Mass.) 



Guaranteed composition : Soluble and reverted phosphoric 



acid, 10 to 14 per cent. ; insoluble phosphoric acid, 3 to 5 



per cent. ; potassium oxide, .25 to .75 per cent. ; nitrogen, 



1.03 per cent, (equivalent to ammonia, 1.25 per cent.). 



Per cent. 



Moisture at 100° C, . . . . . . . 36.85 



Total phosphoric acid, 12.99 



Soluble phosphoric acid, .13 



Reverted phosphoric acid, . . . . . . 6.61 



Insoluble phosphoric acid, 6.25 



Potassium oxide, .32 



Niti'ogen, .63 



Insoluble matter, . . 3.40 



Valuation per two thousand pounds : - 



2.6 j)ounds of soluble phosphoric acid, 

 132.2 pounds of reverted phosphoric acid, 

 125. pounds of insoluble phosphoric acid, 

 6.40 pounds of potassium oxide, . 

 12.60 pounds of nitrogen. 



$0 21 



9 92 



3 75 



27 



2 14 



$16 29 

 Dole's Common Sense Fertilizer. 

 (Common Sense Fertilizer Company ; collected of C. W. Howard, Lawrence, Mass.) 



Guaranteed composition : Total phosphoric acid, 4 to 6 

 per cent. ; potassium oxide, 3 to 5 per cent. ; nitrogen, 2 to 

 5 per cent. 



Moisture at 100'-' C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid. 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Per cent. 



12.80 

 5.21 

 .13 

 3.03 

 2.05 

 4.45 

 2 26 



22 68 



