DEPARTMENT OF PLANT AND ANIMAL CHEMISTRY. 



J. B. LiNDSEY, Chemist. 



Inspection of Commercial Fertilizers 



FOR THE SEASON OF 1908 



By H. D. Haskins, Chemist in Charge. 



ASSISTED BY 



L. S. Walker and J. C. Reed.* 



I 



The full text of the fertilizer law of Massachusetts has been 

 published so many times in previous bulletins, that only the more 

 important points will be referred to at this time. 



All brands of fertilizers, whether single or compound, must be 

 recorded and licensed annually on or before May i, at the Massachu- 

 setts Experiment Station before they can be legally sold or offered 

 for sale in this state. The fee charged by the state for a fertilizer 

 license is $5.00 for each of the so-called essential ingredients: nitro- 

 gen, phosphoric acid, and potassium oxide guaranteed in each and 

 every distinct brand. A certified statement shall be furnished the 

 director by each manufacturer giving the name of each brand oflfered 

 for sale, the name of the manufacturer and location of the factory, 

 as well as the guaranteed composition of each distinct brand. 

 Manufacturers and importers may appoint any number of agents 

 after having secured their license certificate from the director. 



* Organic nitrogen tests were made by P. V. Goldsmith. 



Note.— The nriter wishes to give credit to Dr. J. B. Lindsey for many valuable sugges- 

 tions relative to tlie subject matter of this publication. 



