442 



KOBAYASHI. 



equal in number to I, but a little more ninnerous, those of III and 

 specially IV and V were of a more regular shape and size and still 

 more numerous, while those of VI and especially VII and VIII 

 were again of irregular shape and size, mixed moreover with light 

 and immature ones, and were less numerous. 



The absolute weight of loo grains of eacli series were then 

 determined and were found to be as follows : — 



TABLE A. 



Series. 



Sp. gr. 



Chosen. 



Hiro- 

 shima. 



r)kuna. 



Colza. 



I lamburg. 



Tokyo 

 wase. 



I 



1. 1 45 and more. 



346,0 mg. 



— mg. 



— mg. 



— mg. 



— mg. 



— mg. 



II 



1. 145— 1. 125 



403,0 



376.0 



348.0 





318-0 





III 



1. 125— 1. 105 



420.0 



395-2 



392.0 



306.4 





412.0 



IV 



1. 105 — 1.085 



447.0 



451-0 



421.0 



325-5 



407,0 



421.0 



V 



1.085 — I 



43 5 -o 



4c 0.0 



373 -f^ 









vr 



1.065— 1.045 



424.0 



399-0 



376.0 



322,4 



407.6 



402.0 



VII 



1.045 — ' 025 



406.0 



398.0 



354-" 









VIII 



1.025 and Ics-;. 



372.0 



377-0 



3>oo 



316.0 



31I-0 



377-0 



Thus, the weight of rape seed does not increase or decrease 

 proportionately with its specific gravity, but the seeds of medium 

 specific gravity are always heavier on the average and consist of the 

 grains of a more regular shape. Then the grains belonging to each 

 lot were weighed and classified into four groups for examining the 

 contents of each lot. The result was as follows : — 



