400 



MINUTES 800 



Fig. 2. Curves showing the electrical resistance of Laminaria agardhii in CaCU 

 0.278m and in sea water. Unbroken line, calculated values; broken line, observed 

 values. Average of ten or more experiments; probable error of the mean less 

 than 10 per cent of the mean. 



340 



loo-b 



X Na CI 

 o Ca CI2 

 D Sea Water 



400 MINUTES 800 



Fig. 3. Curves showing the electrical resistance of Laminar m agar dhiiin'Na.Cl 

 0.52m, in CaCl2 0.278m and in sea water. Unbroken line, calculated values; 

 broken line, observed values. Average of ten or more experiments; probable 

 error of the mean less than 10 per cent of the mean. 



