248 AGRICULTURAL EXPERIMENT STATION. [Jan. 



I. 



COMMUNICATION ON COMMERCIAL FERTILIZERS. 



1. General introduction. 



2. State laws for the regulation of trade in commercial fertil- 

 izers. 



3. List of licensed manufacturers and dealers from INIay 1, 1892, 

 to May 1, 1893. 



4. Analyses of licensed fertilizers. 



0. Analyses of commercial fertilizers and manurial substances 

 sent on for examination. 

 6. Miscellaneous analj^ses. 



1. General Introduction. 



The sale of commercial manurial substances, compound 

 and simple, has been quite extensive in our State. Fifty- 

 one manufacturers and dealers have applied and received a 

 license for the sale of their various brands in our State. 

 Thirty-three of them are residents of other States. 



Two hundred and three samples of licensed articles have 

 been collected in all parts of the State by a duly authorized 

 agent of the station. One hundred and eighty-five of them 

 have been carefully analyzed at the chemical laboratory of 

 the station, with the following results : no sample contained 

 all three essential constituents above the highest guarantee ; 

 sixteen samples contained two of the essential constituents 

 above the highest guarantee ; sixty-two samples contained 

 one of the essential elements above the hi2:hest ijuarantee ; 

 thirty-eight samples contained all three essential elements at 

 the lowest guarantee ; sixty-four samples contained two 

 elements at the lowest guarantee ; fifty-two samples con- 

 tained one element at the lowest guarantee ; no sample con- 

 tained all three essential elements below the stated lowest 

 guarantee ; fifteen contained two elements below the stated 



