12 



markets, assisted by Mr. A. B. Harris. As a general rule an 

 effort has been made to collect representative samples of the 

 various brands in different parts of the state and to make one 

 analysis of a composite sample, made up of equal weights of the 

 various samples. It is believed that this will prove more repre- 

 sentative than an analysis of a single sample. In all cases, at 

 least 10 per cent of the number of bags found present were 

 sampled; in cases where only a small amount of any particular 

 brand was found in stock, a larger percentage of the bags was 

 sampled (often 50 to 100 per cent), and in no case were less than 

 five bags sampled without the fact being stated on the guaranty 

 slip which is sent to the station laboratory with every brand of 

 fertilizer sampled. 



One hundred and fourteen towns were visited during the 

 season and samples of fertilizer taken from 291 different agents. 

 Eight hundred and ninety samples have been drawn, representing 

 487 distinct brands. This includes a larger number of brands 

 than was actually licensed. Some of the brands represent private 

 formulas which the farmers have had manufactured for their own 

 use , and which do not require the payment of an analysis fee . The 

 analyses of such brands will be found in the bulletin in a table 

 by themselves, immediately following the table of analyses of 

 fertilizers which furnish only phosphoric acid and potash. 



. . A total of 612 analyses has been made in connection 



with the inspection of 1910. They may be grouped 

 Analyzed. ^ „ 



as follows: 



Complete fertilizers 41S 



Fertilizers furnishing phosphoric acid and pot- 

 ash, such as ashes, etc 21 



Ground bones, tankage and fish . . . 71 

 Nitrogen compounds including blood, castor 

 pomace, cottonseed meal, etc., also the 



mineral sources of nitrogen ... 50 



Potash coinpounds 32 



Phosphoric acid compounds .... 20 



Total 612 



These analyses have been made very carefully and in accord- 

 ance with methods adopted by the Association of Official Agri- 

 cultural Chemists. 



