( 64 ) 
And, consequently, for every ton of dried coffee 
berries that is raised on a plantation, the proprie- 
or must consider about the following quantities 
of the various mineral substances as having been 
oved from bis land :—• 
lbs. 
oz. 
Phosphoric acid ..*» 
27 
Mi 
Sulphuric acid , . . .. 
0 
m 
Potash 
11 
4 
Soda .. .. 
4 
10 
Chloride of sodium, or com- 
mon salt... 
0 
7 
Lime .. 
18 
14 
Magnesia . 
4 
1 
Silicic acid, or silica . 
0 
5 
CS 6 
Chemical Gazette. 
