CKRlvAI.S 



1 109 



Table I. — Sensitiveness of injured or intinjiired i^rain to formalin 

 and copper stdphate. 



Table II. — Reduction of germination capacity sustained in 2 weeks 

 by injured rye grains. 



rye, the badly damaged grain loses a great portion of its germination capacity 

 in 2 weeks (cf. Table II). 



The same observations have been made for wheat by testing machine 

 threshed and hand-hnsked grain. 



The method contrived by the writer for rapidly ascertaining the extent 

 of the injuries sustained consist in submerging the grains to be examined 

 in an 0.4 ''o solution of eosin, and afterwards washing them in water. Where 

 there is a break in the continuity of the integument, the eosine is absorbed, 

 and communicates a conspicuous red hue to the injured portion. For gra- 

 duating the extent of the injury the following scale has been adopted : O, no 



