COMMERCIAL FERTILIZERS. 



347 



Valuation per tou of two thousand pounds 



192 pounds of phosphoric acid 



119.6 pounds of nitrogen .... 



Bowker's Drji Fish and Potash. 

 (Collected of Messrs. Brown & Wiirner, Northampton 



Moisture 



Total phosphoric acid 



Nitrogen 



Potassium oxide 



Insoluble matter 



Valuation per ton of two thousand pounds 



210 pounds of phosphoric acid . 

 53.6 pounds of nitrogen .... 

 82 pounds of potassium oxide . 



Peruvian Guano. 

 (Sent by n. M. Peirson, Esq., Pittstiold, Mass.) 



Moisture lost at 100'= C. 

 Organic and volatile matter 

 Ash constituents 

 Total phosphoric acid . 

 Soluble phosphoric acid 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Potassium oxide 

 Nitrogen 

 Insoluble matter 



Valuation per ton of two thousand pounds 



176 pounds of soluble phosphoric acid 

 55.0 pounds Oi reverted phosphoric acid 



102.4 poimds of insoluble phosphoric acid 



130 pounds of nitrogen 

 74.8 pounds of potassium oxide 



Mass 



ill 52 

 28 70 



$40 22 



Per cunt. 



12 00 



10.50 



2.08 



4.10 



3.00 



fl2 60 



12 86 



4 10 



$29 56 



Per cent. 



11.22 



48.26 



51.74 



16.70 



8.80 



2.78 



5.12 



3.74 



6.80 



0.02 



$22 00 



4 9 



yu 



14 



32 61 



3 74 



$09 57 



