MISCELLANEOUS CROPS. 225 



crease as he gains the necessary knowledge, or he should hire 

 some one experienced in its management to take charge of it. 



PROPERTIES. An analysis of the ash of tobacco shows the 

 following per cent of the various constituents : 



Potash, 12.14 



Soda 0.07 



Lime, 45.90 



Magnesia, . . . . . . . . .13.09 



Chloride of Sodium, 3.49 



Chloride of Potassium, 3.98 



Phosphate of Iron, ....... 5 48 



Phosphate of Lime 1.49 



Sulphate of Lime, 6.35 



Silica, . .... 8.01 



Total, 100.00 



From the above table can be seen what mineral matters pre- 

 dominate in the plant. 



15 



