- x6 - 



(9) The color of the anthocyanine varies (red, violet, or azaxe blue), 

 first depending on the influence of the cell sap. One ought not here to con- 

 sider all these red, violet, and azure hlue pigments as constituting a single 

 compound which colors according to the degree of acidity of the cell sap, but*, 

 according to the results of the chemical research of other authors, it may be 

 asserted that antho'.?.ya,nines are different in their properties. 



Botanical Institute of Pavia, Julyj 1911« 



