PART V. 



USEFUL TABLES* 



Farmers and planters must do a little thinking on 

 their own account, to apply any useful information to 

 their own surroundings. At best, scientific experimenters 

 can only give general directions all farms cannot be 

 studied in detail, and there are no two farms exactly alike. 

 We have given in this book such information that a 

 thoughtful farmer should be able to figure out his local 

 needs. As a general aid, the following tables are given, 

 taken from reliable sources. 



COMPOSITION OF POTASH SALTS 



GUARANTEED 

 NAME OF SALTS PER CENT 



OF ACTUAL POTASH 



A. Salts containing Chlorides: 



Muriate of Potash 50 



Manure Salt 20 



Kainit (crude potash salt) 12 



B. Salts free of chlorides: 



Sulphate of Potash 48 



Sulphate of Potash-Magnesia. . . 25 



