COMMERCIAL FERTILIZERS. 



203 



. Chiltende7i's Fish and Potash (No. Tivo.) 



(Collected of Wilder and Puffer, Springfield, Mass.) 



Guaranteed composition : total phosphoric acid, 6 to 8 per 

 cent. ; potassium oxide, 4 to 6 per cent. ; ammonia, 2 to 4 

 per cent, (equivalent to nitrogen, 1.6 to 3.3 per cent.). 



Per cent. 



Valuation per two thousand pounds : — 



2.6 pounds of soluble phosphoric acid, 

 43.8 pounds of reverted phosphoric acid, 

 90.4 pounds of insoluble phosphoric acid, 

 94.4 pounds of potassium oxide, . 

 38. nitrogen, 



$21 96 

 Botvker^s Fish and Potash. 

 (Collected of Fuller and Newton, Springfield, Mass.) 



Guaranteed composition: total phosphoric acid, 8 to 

 10 per cent. ; potassium oxide, 4 to 6 per cent. ; nitrogen, 

 2.25 to 3.25 per cent. 



Moisture at 100° C , . 

 Total phosphoric acid. 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid^ 

 Insoluble phosphoric acid, 

 Potassium oxide, 

 Niti'ogen, 

 Insoluble matter, 



Per cent. 

 11.90 

 1192 

 3.32 

 2.90 

 5.70 

 3.86 

 3.02 

 6.85 



Valuation per two thousand pounds : — 



66.4 pounds of soluble phosphoric acid, 

 50. pounds of reverted phosphoric acid, 

 114. pounds of insoluble phosphoric acid, 

 77.2 pounds of potassium oxide, 

 60.4 pounds of nitrogen, . . . . 



$35 95 



