Osmotic Concentration and Electrical Conductivity, Etc. 1 4 1 



at the points where the straight lines fitted to the means 

 intersect the verticals representing the mean values of the 

 freezing point lowering. 



Diagram 2 



Average osmotic concentration, in terms of freezing point lowering, of leaf 

 tissue fluids of ligneous and herbaceous species classified according to specific 

 electrical conductivity, K X io 6 . 



The mean values of A for various grades of K are shown 

 in Table X and represented graphically in Diagram 2. The 

 differentiation of ligneous and herbaceous forms with respect 



