33 



of 3.71 per cent of chlorine would be condemned and, moreover, the use of this 

 group in producing a mixed fertilizer relatively free of chlorine would present a 

 serious problem. For example, a tobacco formula with 7 per cent of potash derived 

 from these salts would yield from all sources about .82 per cent of chlorine, whereas 

 the same formula with potash derived from a salt with a maximum of 2.5 per cent 

 of chlorine, as provided in the definition, would yield only .65 per cent of chlorine. 

 It is apparent from the above that the group of potash salts with the high content 

 of chlorine could not be safely used in formulating mixtures where all of the potash 

 was claimed as sulfate. 



Raw Products Supplying Nitrogen and Phosphoric Acid. 

 Dry Ground Fish. 



Brands Substantially Meeting Their Guarantees. 



Manufacturer 



Number 



of 

 Samples 



Nitrogen 



Found 



Guaran- 

 teed 



Phosphoric Acid 



Found 



Guaran- 

 teed 



The American Agricultural Chemical Co 



Apothecaries Hall Co. . 



Armour Fertilizer Works 



The Berkshire Fertilizer Co. 



The E. D. Chittenden Co. 



Eastern States Farmers' Exchange 



A. W. Higgins, Inc. 



Maine Farmers Exchange 



F. S. Rovster Guano Co. 



Olds & Whipple, Inc. . 



Sanderson Fertilizer & Chemical C 



2" 



31 



21 



71 



1 



21 



2 



1 



2' 



21 



1 



8.23 



8.22 

 9.05 

 8.22 

 8.22 

 8.22 

 9.03 

 8.22 

 8.22 

 8.23 

 8.23 



8.37 

 6.40 

 8.92 

 7.36 

 6.. 51 

 8.94 

 6.74 

 8.75 

 5.77 

 7.02 

 8.14 



6.00 

 5.00 

 6.86 

 6.00 

 6.00 

 4.58 

 5.00 

 2.00 

 5.00 

 5.00 

 6.00 



Brands Showing a Commercial Shortage of $1 or over per Ton. 



The American Agricultural Chemical Co. 

 The E. D. Chittenden Co . 

 Eastern States Farmers' Exchange 

 F. S. Royster Guano Co. 



6.00 

 6.00 

 4.58 

 5.00 



1 Two analyses made. 



2 Collected at Hadley. Commercial valuation .f 60.74, commercial shortage $3.84 per ton. 



3 Collected at South Deerfield. Commercial valuation .S60.97, commercial shortage $3.61 per ton. 

 * Collected at Conway. Commercial valuation $59.41, commercial shortage $3.89 per ton. 



5 Collected at Amherst. Commercial valuation $62.26, commercial shortagg $1.42 per too. 



Ground Bone and Tankage. 



Brands Substantially Meeting Their Guarantees. 



