RES 
MIN 
40 80 
Fig. 2. A. Effect of FeCU 0.20 M upon the permeability of Laminaria Agardhii 
Kjellm. Ordinates indicate percentage of the original resistance (considered as 100 percent) 
in sea water of the same conductivity as the solution tested. Abscissae represent time in 
minutes of the tissue in the solution. B. Effect of FeCh 0.23 M with enough HQ added 
to produce the same hydrogen-ion concentration as in A (pH 2.5). C. Effect of FeCla 
0.28 M of the same conductivity as A and B (pH 4). 
