COI^IMERCIAL FERTILIZERS. 501 



Chittenden's " Complete Fertilizer for Potatoes^ Roots and Vege- 

 tables." 



(National Fertilizer Company, Bridseport, Conn.; collected of L. W. Fairchild 



Sunderland, Mass.) 



Guaranteed composition : Total phosphoric acid, 8 to 10 

 per cent. ; available phosphoric acid, 6 to 8 per cent. ; po- 

 tassium oxide, 6 to 8 per cent. ; ammonia, 4 to 5 per cent, 

 (equivalent to nitrogen, 3.3 to 4.1 per cent.). 



Per cent. 



Moisture at 100° C, 9.81 



Total i:)liosphoric acid, 14.74 



Soluble phosphoric acid, 6.40 



Reverted phosphoric acid, 4.47 



Insoluble phosphoric acid, 3.87 



Potassium oxide 6.05 



Nitrogen, 4.53 



Insoluble matter, 2.24 



Valuation per two thousand pounds : — 



128. povmds of soluble phosphoric acid, 

 89.4 pounds of reverted phosphoric acid, 

 77.4 poimds of insoluble phosphoric acid, 



121. pounds of potassium oxide, . 

 90.6 pounds of nitrogen, 



$10 24 



6 71 



2 .32 



5 14 



15 86 



$40 27 



Chittenden's Complete Fertilizer for Grass. 

 (Collected of L. W. Fairchild, Sunderland, Mass.) 



Guaranteed composition : Total phosphoric acid, 6 to 8 

 per cent. ; available phosphoric acid, 4 to 6 per cent. ; po- 

 tassium oxide, 5 to 7 per cent. ; ammonia, 5 to 6 per cent, 

 (equivalent to nitrogen, 4 to 5 per cent.). 



Per cent. 



Moisture at 100^ C, 12.47 



Total phosphoric acid, 13.72 



Soluble phosphoric acid, 4.86 



Reverted phosphoric acid, 4.16 



Insoluble phosphoric acid, 4.70 



Potassiiun oxide, 6.12 



Nitrogen, 3.60 



Insoluble matter, 3.05 



