612 



THEORY OF INJURY AND RECOVERY. Ill 



in which K^ = 0.0036, K^ = 0.1080 and M is equal to the observed 

 resistance at the moment when the tissue is replaced in sea water less 

 10 (since the base line of the curve is taken as 10). 

 The value of A may be obtained by the formula 



A = 2700 e 



■KaTe 



(2) 



in which K^ = 0.018 and T^ is the time of exposure to NaCl (in this 

 case 20.8 minutes). 



50 



' '<i 



4oo 



MINUTES 800 



Fig. 1. Curves showing the electrical resistance of Laminaria agardhii in NaCl 

 0.52m and in sea water. Unbroken line, calculated values; broken line, observed 

 values (at the extreme right these -coincide). Average of ten or more experi- 

 ments; probable error of the mean less than 10 per cent of the mean. 



The value of 5 may be obtained by the formula 



—KrTe —K.sTe 



5 = 1041.77 



/ Kr \/ -KrTe -KsTe\ 



+ 2.7e 



-KsTe 



(3) 



in which K^ = 0.04998 and Ks = 0.02856. 

 The value of O may be obtained by means of the formula 



-KoTe 

 + yu ( 



in which Km = 0.03 and Kq = 0.0297. 



0=89.1 



\Ko-Kn) \ 



-K,Te -K0Te\^^^^ 



(4) 



