DEPARTMENT OF CHEMISTRY. 



J. B. LiNDSEY, Chemist. 



INSPECTION OF COMMERCIAL FERTILIZERS 

 FOR THE SEASON OF 1922. 



BY H. D. HASKINS, CHEMIST IN CHARGE, ASSISTED BY L. S. WALKER AND 



R. W. SWIFT. ^ 



MANUFACTURERS AND BRANDS. 



During the season of 1922, 81 manufacturers, importers and dealers, including 

 the various subsidiaries of the larger companies, have secured certificates for the 

 sale of 586 brands of fertilizer and fertilizing materials in the markets of Massachu- 

 setts. These may be classed as follows: — 



Complete fertilizers .... 

 Ammoniated superphosphates 

 Superphosphate and potash 

 Pulverized manures .... 

 Ground bone, tankage and dry ground fish 

 Chemicals and organic nitrogen compounds 

 Wood ashes ..... 



372 



2.3 



4 



11 



61 



113 



586 



As is usually the case, a few of the registered brands were not found by our in- 

 spectors. They are as follows : — 



Manufacturer and Br.\nd. 



The American Cotton Oil Co. 



Surety Brand Cotton Seed Meal 



Armour Fertilizer Works. 



Ground Tankage 9-15 



Grade. 



9-6.86-0 



Manufacturer and Brand. 



The Berkshire Fertilizer Co. 



Tankage 



Bowker Fertilizer Co. 



Bowker's Ammoniated Food for 

 Flowers 



Bowker's Connecticut Valley Tobacco 

 Fertilizer ...... 



Emerson's Special Grass Manure 



The Buckeye Cotton Oil Co. 



" Buckeye " Cottonseed Meal 



Grade. 



9-9-0 



3-6-2 



5-4-3 

 7-8-1 



7.51-0-0 



1 E. W. Martin a-ssisted in the phosphoric acid laboratory two months, and F. J. Kokoski in the nitrogen 

 laboratory two months. 



