52 INJURY, RECOVERY, AND DEATH 



120 PER CENT 



100 



.001 



.01 .015 .02 



.03 M 



Fia. 23. — Curves of net electrical resistance of Laminaria agardhii in sea water containing 



various amounts of HCl. The ordinates represent net resistance. The abscissse represent 



concentrations of HCl. All readings are taken at 18° C. or corrected to this temperature. 



Each curve represents a single typical experiment. 



In the previous experiments with alkali^^ it was f onnd 



^Cf. Osterhout (1914, F). 



