468 



ON THE SELECTION OF RAPE SEED. 



sieves in order to get rid of irregular grains of higher specific 

 gravity, and the h'ghter ones must be skimmed off in a solution of 

 common salt having the specific gravity of 1.045. The large, heavy 

 and regularly shaped grains of the medium specific gravity of about 

 1. 045-1. 105 left after these selective processes must alone be 

 employed for sowing. 



Tokyo, June, 1896. 



