92 I. NAGAI : 



r«lclish brown. Pale yellow x black proilucetl in F^ , a pale yollowish green seed antl in F.^ , 2',) 

 greens, 20 pale greens, 10 yide yellows, 9 blacks, 2 browns and 4 reddish brown were foxmd. 

 Among greens and l^ale yellows, 17 and 7 were tinged with black of different shades respectively. 

 Tale green x brown jiroduced a pale green seed in F, , and in the next generation pale green, 

 yellow, black, and brown appeared by the following numbers : 27, 9, 15, and 5. Among the first 

 two classes, six of them in each were tinged with blacldsh shade. Black x green produced in 

 Fj, a pale yellowish green seed, and in i^ , ]iale green, green, reddish brown, and black were 

 fonnl. 



O. KosENHEUl (Observations on Anthocyanins. I. The Anthocyjxnins of the Yomig Leaves of 

 the Grape Vine. Biochemical .Tonr. 14 : 178, 1920.) foimd certain ehromogenic substances in the 

 young leaves of the grape vine which gave an anthoeyanin-like coloured substance by heating 

 with hydrochloric acid. He called them " leuco-anthocyanin ". 



.Time, 1920. 



