INSPECTION OF COMMERCIAL FERTILIZERS FOR 

 THE SEASON OF 1926. 



BY H. D. HASKIXS, OFFICIAL CHEMIST, ASSISTED BY L. S. WALKER AND M. W. GOODWIN.^ 



MANUFACTURERS AND BRANDS. 



Eighty-five manufacturers and their subsidiaries, importers and dealers have 

 registered in Massachusetts, for the season of 192G, 337 brands of mixed fertilizers 

 and 204 brands of unmixed fertilizing materials. Their general character is as 

 follows : 



Complete fertilizers .... 

 Ammoniated superphosphates 

 Superphosphate with potash 

 Pulverized manures .... 

 Ground bone, tankage and dry ground fish 

 Chemicals and organic nitrogen compounds 

 Wood ashes ..... 



329 

 7 

 1 



11 



66 



125 



2 



541 



In view of the fact flat registrations are due on or before Januar.y 1, it is a 

 common practice for many manufacturers to register brands for which no orders 

 have actually been taken, with the expectation that there will be a normal demand 

 for them later in the season. In a few instances brands were thus registered for 

 which there was no demand, and consequently no sales were made. In the majority 

 of instances, however, the failure to secure representative samples of registered 

 brands of mixed fertilizers has been due to limited tonnage sold in a small territory, 

 resulting in the use of the fertilizer by the consumer before the arrival of the 

 sampling agent. Many of the unmixed crude stock materials listed among the 

 brands not sampled were not sold in the unmixed condition, but were used in 

 special mixtures as.sembled in small lots on order of the consumer. It is a ruling 

 that such mixtures may be exempt from registration provided the chemicals and 

 crude stock materials used therein are registered, and the price cjuoted on the 

 several ingredients used rather than on the mixture. In such case the mixing 

 charge would be a service charge rather than absorbed in the selling price of the 

 final product. 



The following brands were not sami)led : 



Brands of Fertilizer Registered but Not Sampled. 



I E. W. Martin assisted in the phosphoric acid laboratory for about two months, and F. J. Kokoski 

 in the nitrogen laboratory three months. 



