304 
MISCELLANEOUS ANALYSES. 
Flax and hemp are exhausting crops : the earthy phosphates, lime and the alkalies, 
form important elements in the plants. 
3. Analysis of hemp. 
Silica - 
- 
- 
- 
- 
12*00 
Earthy phosphates - 
- 
- 
- 
- 
36*50 
Carbonate of lime - 
- 
- 
25*90 
Magnesia 
- 
- 
4*50 
Chloride of sodium 
- 
- 
1*00 
Potash ... 
15*00 
Soda 
3*30 
Sulphuric acid 
a ° 
" 
1*50 
99*70 
From the foregoing analyses, it is evident that both flax and hemp are exhausting crops. 
They have too the disadvantage in cultivation, that usually nothing is returned to the soil. 
The ash of the straw might, however, be scattered over the soil, though it is rarely if 
ever done. 
ANALYSIS OF SPEARMINT. 
Stem and leaves nearly dry. 
PROPORTIONS. 
Dry plant - 100*00 
Dry -.98*00 
Ash.2*72 
ANALYSIS. 
Silica - - - - - - - - 13*00 
Earthy phosphates - - - - - 24*15 
Carbonate of lime - - - - - 23*50 
Magnesia - - - - - - - 0*62 
Potash.24*20 
Soda ..3*40 
Chlorine - - - - - - - 4*20 
Sulphuric acid - - - - - - 3*40 
Organic matter - - - - - - 1*50 
97*97 
The herbage of spearmint and peppermint, as is well known, is used for the oil they 
contain. The latter is cultivated extensively in some parts of the country. The sponta¬ 
neous growth of the former is depended upon mostly for its oil. Both are exhausting crops. 
