WHITENING OF BICE. 
7 
hulled rice we found, on an average of 5 complete ash analyses, 
22.7% of potash and 51.5% of phosphoric aeid, and in that of 
rice brans (mixture of 7 specimens) 10.7% of potash and 
45.1% of phosphoric acid 4 the total amount of ash being 
9.45% in the dry matter. Hence there exists: 
Potash. Phosphoric acid. 
In 100 p. of orig. hulled grain.0.20% 0.59%, 
In 7.35 p. of bran.0.12 „ 0.30 „ 
In the whitened and broken grain 0.14 „ 0.29 „ 
The minute quantity of mineral matters contained in the 
small proportion of dust (loss) being neglected, we see that by 
the process of whitening nearly exactly half the amounts of 
potash and phosphoric acid are gained in the brans, — a fact 
which has an important bearing on the statics of Japanese 
agriculture. 
Cj 
* Bulletin No. 4 of this college, p. 17. 
