42 



CONTROL SERIES No. 95 



Phosphoric Acid Compounds. 



Superphosphate, Precipitated Bone, and Basic Slag Phosphate. 



Manufacturer and Brand. 



Number 



of 

 Samples. 



Total 

 Phos- 

 phoric 

 Acid. 



Available 

 Phosphoric Acid 



Guaran- 

 Found. teed. 



Co. 



Acme Guano Co. 



Acme 16% Supernhosphate 



Acme 20% Superphosphate 

 American Agricultural Chemical 



AA 16% Superphosphate 



AA 16% Superphosphate 



AA 16% Superphosphate 



AA 20% Superphosphate 



Co-Op 16% Superphosphate . 

 Apothecaries Hall Co. 



Basic Slag 



Superphosphate 16% 



Superphosphate 20% 

 Armour Fertilizer Works 



Armours Big Crop Superphosphate 16% 



Armours Big Crop Superphosphate 20% 

 Berkshire Chemical Co. 



Berkshire Superphosphate 16% 



Davco 20% Granular Superphosphate 

 Consolidated Rendering Co. 



Superphosphate 16% 



Superphosphate 16% 



Superphosphate 20% 

 Eastern States Farmers' Exchange 



Eastern Ptates Precipitated. Bone . 



Eastern States 20% Superphosphate 



Eastern States 40% Double Superphosphate 

 International Agricultural Corp. 



International Basic Slag . 



International 16% Superphosphate 



International 16% Superphosphate 



International Superphosphate 20% 

 Old Deerfield Fertilizer Co., Inc. 



Old Deerfield Precipitated Bone 



Old Deerfield Precipitated Bone 



Old Deerfield 16% Superphosphate 



Cld Deerfield 20% Superphosphate 

 Rogers & Hubbard Co. 



Superphosphate 16% 



Superphosphate 20% 

 Standard Wholesale Phosphate & Acid Works, Inc 



Standard 20% Superphosphate 

 C. P. Washburn Co. 



Superphosphate 16% 



6 

 7 

 7 



1 



10 

 5 



3 

 6 

 8 



16.00 

 20.00 



16.00 

 16.00 

 16.00 

 20.00 

 16.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 

 20.00 



16.00 

 16.00 

 20.00 



38.00 

 20.00 

 40.00 



14.40 

 16.00 

 16.00 

 20.00 



38.00 

 38.00 

 16.00 

 20.00 



16.00 

 20.00 



20.00 



16.00 



a Guaranteed 18% total phosphoric acid; available phosphoric acid guarantee not given. 



