1917] CURRENT LITERATURE 259 
rubrum L., the raspberry, and the berry of the mountain ash. These glucosides 
also occur very extensively in fruits and in yellowish red, red, brown, and dark 
blue berries. They have been isolated from the cranberry, the cherry, the sloe 
(black thornberry), and the plum. The occurrence of a pure red coloring 
Pelargonidin group 
Pelargonin Callistephin 
Pelargonidin 
Cyanidin group 
