528 



ANNUAL REPORT OF THE 



Off. Doc. 



A suminaiy of the analyses made this season may be presented as 

 follows : 



Summary of Analyses Made This Season. 



01 

 Q 

 O 



pQ 



■O 



a 



s 

 o 

 t^ 



O 



Number of analyses. 

 Moisture, jier cent.. 



Pliosphorie acid: 

 Total, iier cent.. 



Available 



Insoluble 



Potash, . 

 Nitrogen, 



Mechanical Analyses of Bone: 



Fine 



Coarse 



Commercial valuation. 

 Average selling price. 



21 



23.03 



3.13 



62 

 48 



33.56 

 32.79 



The potash stringency due to the European war, has resulted in a 

 further decrease in the amounts of potash salts used in mixed ferti- 

 lizers. 



The average potash percentages, commerical valuations and selling 

 prices, for the brands analyzed in the Fall Season, of 1913, 1914 and 

 1915, are as follows: 



1914. 



Cl 



S 



a 



o 



1916. 



a 

 B 



CO 

 0) 



a 

 a 



o 



Potash, per cent 



Commercial valuations. 

 Average selling price, 



4.28 

 $24.36 

 $21.53 i 



4.70 

 $16.85 

 $16.25 \ 



3.42 



$22.64 

 $20.83 



3.50 



$15.42 

 $15.21 



1.94 

 $23.13 

 $21.79 



1.87 

 $15.75 

 $16.89 



There is a steady decrease in the brands on the market 

 in which potash continues to be as part of the mixture. There is, 

 however, no great increase in the prices asked for the potash used. 



The remarkable increase in the number of brands appearing under 

 the heading ''Dissolved Bone" is doubtless due to the present potash 

 scarcity. It will appear, upon an examination of the brand names of 



