692 
Fritsch and Haines .— The Moisture-relations 
Fig. i. Influence of drought on plasmolysis of Zygogonium ericetorum 
(Expt. XII'). a = granular, b = non-granular cells. 
Length cj* exposure to drcU-ght Zn. cZatjg. 
Fig. 2. Effect of drought on Zygogonium (Expt. XVI). 
