12 



CONTROL SERIES No. 45 

 Deficiency Statistics for Mixed Fertilizers. 



Manufacturer. 



American Agricultural Chemical 

 Co 



American Chemical Specialties 

 Co., Inc. 



American Soda Products Co. 



Apothecaries Hall Co. 



Armour Fertilizer Works 



Barrie Laboratories, Inc. 



Beach Soap Co. 



Berkshire Chemical Co. 



C. & R. Sales Co. 



E. D. Chittenden Co. 

 Clay & Son 



Davey Tree Expert Co. 

 John C. Dow Co. 

 Earp-Thomas Cultures Corp. 

 Eastern States Farmers' Exchang 

 Essex Fertilizer Co. 

 Excell Laboratories 

 H. L. Frost & Co. 

 Grasselli Chemical Co. 

 Thomas Hersom & Co. 

 International Agricultural Corp. 

 Henry James & Son, Inc. . 

 Jarecki Chemical Co. . 

 Lowell Fertilizer Co. . 

 Maine Farmers' Exchange . 

 Mapes Formula & Peruvian Guano 



Co 



A. G. Markham & Co. 

 McCallum Co. . 

 Meyer & Mendelsohn, Inc. . 

 Miller Fertilizer Co. . 

 Mitchell Fertilizer Co. 

 New England Fertilizer Co. 

 Old Deerfield Fertilizer Co., Inc. 

 Olds & Whipple, Inc. . 

 Oyama Products Co. . 

 Parmenter & Polsey Fertilizer Co. 

 Pawtucket Rendering Co. . 

 Piedmont-Mt. Airy Guano Co. 

 Plant Products Co. 

 Rogers & Hubbard Co. 

 Ross Brothers Co. 



F. S. Royster Guano Co. 



M. L. Shoemaker & Co., Inc. 

 Smith Agricultural Chemical Co. 

 Springfield Rendering Co. . 

 Summers Fertilizer Co., Inc. 

 Swift & Co., Fertilizer Works 

 Synthetic Nitrogen Products Corp 

 Henry J. Taubert 

 William Thomson & Sons, Ltd. 

 Triton Oil and Fertilizer Co. 

 Uniform Products Co. 

 United States Guano Co. . 

 Victory Fertilizer Corp. 

 Virginia-Carolina Chemical Corp 

 C. P. Washburn Co. . 

 Wilcox Fertilizer Co. . 

 Worcester Rendering Co. 



1 Where several analyses of the same brand occur an average is secured and recorded in case 

 of deficiencies as well as for total number of tests or determinations. 



