42 



CONTROL SERIES No. 109 

 Phosphoric Acid Compounds. 



Manufacturer and Brand. 



Number 



of 

 Samples. 



Total 

 Phos- 

 phoric 

 Acid. 



Available 

 Phosphoric Acid 



Found. 



Guaran- 

 teed. 



American Agricultural Chemical Co. 



AA 16% Superphosphate 



AA Superphosphate 20% 



Co-op 16% Superphosphate . 

 Apothecaries Hall Co. 



Superphosphate 16% 



Superphosphate 20% .... 

 Armour Fertilizer Works 



Armour's Big Crop 16% Superphosphate 



Armour's Big Crop 20% Superphosphate 

 Baugh & Sons Co. 



Baughphos The Ideal 16% Superphosphate 



Baughphos The Ideal 20% Superphosphate 

 Consolidated Rendering Co. 



Superphosphate 16% 



Superphosphate 20% 



Superphosphate 20% 



Superphosphate 20% 



Davison Chemical Corporation 



Davco Granulated 20% Superphosphate 



Davco Granulated 20% Superphosphate 

 Eastern States Farmers' Exchange 



Eastern States Superphosphate 20% . 



Eastern States Superphosphate 47% Triple 

 Goulard & Olena, Inc. 



G & O Superphosphate 20% . 

 International Agricultural Corporation 



International 16% Superphosphate 



International 20% Superphosphate 

 Old Deerfield Fertilizer Co., Inc. 



Old Deerfield Superphosphate 16% 



Old Deerfield Superphosphate 20% 

 Rogers & Hubbard Co. 



Hubbard's 16% Superphosphate . 



Hubbard's 20% Superphosphate . 

 Ruhm Phosphate & Chemical Co. 



Red Seal Brand Ruhm's Phosphate Rock (Washed & 



Ground) 



C. P. Washburn Co. 



Superphosphate 16% 



24 



18.18 

 22.12 

 18.48 



18.43 

 22.83 



18.03 

 21.83 



18.43 

 21.41 



18.43 

 21.70 

 21.16 

 21.41 



21.56 

 22.47 



22.52 

 49.80 



23.23 



18.28 

 22.07 



18.48 

 23.18 



19.54 

 21.00 



34 . 69a 

 18.18 



17.54 

 21.32 



17.88 



17.81 

 22.67 



17.39 

 21.09 



18.17 

 20.83 



18.03 

 20.62 

 20.98 

 21.33 



21.16 

 21.69 



21.82 

 49.46 



22.57 



17.96 

 21.65 



18.14 

 22.88 



19.38 

 20.84 



17.74 



16.00 

 20.00 

 16.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 

 20.00 

 20.00 

 20.00 



20.00 

 20.00 



20.00 

 47.00 



20.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 



a Total phosphoric acid guaranteed 33%: no available phosphoric acid guaranteed. 



Products Supplying Nitrogen and Phosphoric Acid 

 Dry Ground Fish 



