^QQ H. YOSHIDA 



washed. The hitter was transferred to a platinum dish, and digested 

 with sodium hydroxide wliich I had prepared myself from sodium 

 in a platinum dish. The filtered solution was acidified with hydro- 

 chloric acid and precipitated with ammonia. The precipitate was 

 washed, dried and ignited, and regarded as aluminium phosphate. 

 In one or two cases, its composition was verified by determining the 

 phosphoric acid in it. In another part of the ash, the total phos- 

 phoric acid was estimated by precipitation as ammonium phos- 

 phomolybdate and weighing as magnesium pyrophosphate. 



In the following table, there are included the numbers for 

 percentage of ash in the grains, and of phosphoric acid and silica in 

 the ash, because they serve to show the normal character of the 

 samples and of my analyses. 



Ash per cent Per cent, of Ash of. 



of air-dried 



Sample. Alumiua. Phospb. acid. Silica etc. 



Pea, whole. Soja liispida. — 0.053 33.48 — 



Pea, cotyledons. 4.22 0.000 — 0.50 



Pea, hull or skin. 4.31 0.268 5.66 3.60 



Bed bean (Azuki), Phaseolus radiatus. 2.60 0.096 32.89 0.25 



Eice. (Hill). 0.87 0.161 51.33 9.36 



llice. (Paddy). 0.56 0.189 52.79 10.99 



Wheat. 2.62 0.106 65.55 1.31 



Barley. 1.09 0.140 33.19 1.19 



Millet (AAva), Pcmicnm italicum. 1.68 0.272 40.43 8.91 



Millet (Hiye). P. crus corvi. 0.94 0.185 39.87 8.62 



Buckwheat. 1.72 0.113 1.94 0.81 



From this table it will be seen that I have found alumina in every 



case except in that of the cotyledons of the pea, while in the hull or 

 skin of the pea, one of the largest amounts of alumina occurs. 



