20 
RESEARCHES ON TITE COMPOSITION 
As we might have expected, the cakes of the kernels 
proved to be much more valuable than those which re¬ 
sult chiefly from the flesh. The former are similar, but 
somewhat inferior to rape cakes, the latter are not much 
better than the straw of leguminous plants. Both require 
a preparatory decomposition in the compost bed before 
application. 
VII. Tea Seed Cakes. 
The seeds of the tea plant are sometimes collected for 
their oil of which they contain in the dry matter 37.4 °/ lj . 
It appears that the production of seeds is rather scanty, if 
the plantations are properly treated, and that a noticeable 
crop of them is only obtained at the expense of the leaves, 
if the shrubs are allowed to be impaired by weeds. 
A specimen of cakes from the pressing of the oil was 
J. Saioano and was composed as 
analyzed by Mr. 
follows :— 
Water. 10.99 °/ 0 
Organ, matter 82.76 „ 
Ash and sand... 6.25 „ 
Nitrogen . 2.13 ,, 
Potash . 1.99°/ o 
Soda . 0.08 ,, 
Lime. 0.22 °/ ( 
Magnesia . 0.35 ,, 
Ferric oxide . 0.78 „ 
Phosphoric acid. 0.51 ,, 
Sulphuric acid ... 0.16,, 
Silica and sand ... 1.73 ,, 
Chlorine.. trace 
The tea seed cakes are accordingly much inferior to the 
other ordinary kinds of oil cakes, which are far richer in 
nitrogen and phosphoric acid. Owing to their extremely 
bitter taste they cannot he utilized as cattle food. 
VIII. Saké Cakes. 
In the manufacture of rice wine (saké), of which 
whitened rice constitutes the only raw material, some parts 
