40 



CONTROL SERIES No. 54 



Phosphoric Acid Compounds. 



The following table gives the analyses of those fertilizer simples valued chiefly 

 for their phosphoric acid. 



Superphosphate, Precipitated Bone, Basic Slag Phosphate and Phos- 

 phate Rock. 



Mandfactcrer. 



American Agricultural 

 Chemical Co. 



Apothecaries Hall Co. 



Armour Fertilizer Works . 



Berkshire Chemical Co. 



Central Chemical Co. 



Colloidal Phosphate Sales 



Co 



Consolidated Rendering Co. 



Eastern States Farmers' E.x- 



change 

 International Agricultural 



Corp. .... 



Middlesex County Farm Bu- 

 reau .... 

 Miller Fertihzer Co. . 



Old Deerfield Fertilizer Co., 



Olds & Whipple, Inc. 



Piedmont-Mt. Airy Guano 

 Co., Inc. 



Rogers & Hubbard Co. 



Ruhm Phosphate & Chemi- 

 cal Co. 



Standard Wholesale Phos- 

 phate & Acid Works, Inc. 



Virginia-Carolina Chemical 

 Corp .... 



C. P. Washburn Co. 



Br.\nd. 



]6% Superphosphate 



f Liberty Superphosphate 

 \ Liberty Precipitated Bone . 

 Big Crop 16% Superphosphate. 

 / 16% Superphosphate 

 \ Precipitated Bone Phosphate 

 I Gro-All Dissolved Phosphate 

 \ Precipitated Bone 



Colloidal Phosphate 



16% Superphosphate . 



20% Superphosphate . 



16'7 Superphosphate 

 1 Precipitated Bone 

 [ 16' (' Superphosphate 

 ! 1S'( Superphosphate 

 [ Imported Basic Slag . 



Basic Slag 



16%; Superphosphate 

 / 16% Superphosphate . 

 I Precipitated Bone 

 / 16% Superphosphate 

 I Precipitated Bone Phosphate 



16%, Superphosphate 

 16%: Superphosphate 

 Ruhm's Lime Phosphate 



(Phosphate Rock Washed 



and Ground) . 



16% Superphosphate 



16% Superphosphate 

 16%, Superphosphate 



Av.\IL.\BLE 



Phosphoric 

 Acid. 



Found. 



16.67 



16.16 

 38.46 

 16.64 

 17 . 85 

 38.70 

 16. 55 

 41.22 



3.72 

 16.62 

 20.58 

 16.74 

 44 . 57 

 16.06 

 18.60 

 15.47 



15.49 

 16.13 

 17.04 

 41.92 

 16.96 

 43.06 



16.12 

 18.09 



16.80 



16.72 

 16.57 



Guaran- 

 teed. 



16.00 



16.00 

 36.00 

 16.00 

 10.00 

 38 . 00 

 16.00 

 38.00 



none 



16.00 



20.00 



16.00 



38 . 00 



16.00 



18.00 



14.40 



14.00 

 16.00 

 16 . 00 

 38.00 

 16.00 

 38.00 



16.00 

 16.00 



16.00 



16.00 

 16.00 



o Two analyses. 

 b Guaranteed 33' 



total. 



