Injury, recovery, and death, in relation to conductivity and permeability . M, in CaCh Af and in sea water. Unbroken line, calculated values; broken line, observedvalues. Average of ten or more experiments; probable error of the mean less than 10% of the mean. fact that the ^standard curve for CaCls, which wasbased upon previous experiments made under differentconditions, seems to be a little too low for thepresent material. IV. CaCU, NaCl, Sea Water, etc, A series of experiments w^as made to determine theeffect of CaClo followed directly by NaCl. The resultsare shown in Fig. 47. The ris
Injury, recovery, and death, in relation to conductivity and permeability . M, in CaCh Af and in sea water. Unbroken line, calculated values; broken line, observedvalues. Average of ten or more experiments; probable error of the mean less than 10% of the mean. fact that the ^standard curve for CaCls, which wasbased upon previous experiments made under differentconditions, seems to be a little too low for thepresent material. IV. CaCU, NaCl, Sea Water, etc, A series of experiments w^as made to determine theeffect of CaClo followed directly by NaCl. The resultsare shown in Fig. 47. The rise in CaCls during the minutes is calculated in the usual manner. In orderto calculate the subsequent drop in NaCl we must substi-tute for in formula (9) the value of M; , theobserved resistance (less 10) at the beginning of exposureto NaCl. In place of 2313 we must substitute the valueof A, which is A^ =2700e -() 118 INJUEY, RECOVERY, AND DEATH During the exposure of minutes to NaCl the valueof A changes from A, to A, = A,e -()^. X NaClo CaClaD Sea Water Q 400 MINUTES 800 Fig. 47.—Curves showing the net electrical resistance of haminaria agardhii in NaCl M,in CaCh M and in sea water. Unbroken line, calculated values; broken line, observedvalues. Average of ten or more experiments; probable error of the mean less than 10% of the mean. This value must be substituted for A in formula (7) incalculating the recovery in sea water. In finding the value of 8 (by means of formula (3))we must remember that during the minutes in CaCl2the value of R (which at the start is i? ^ = ) dimin-ishes from R^y to R^ according to the formula Ri = Rue Kr in CaCl, = (See Table V, page 98). Dur- INJURY AND RECOVERY 119 ing the minutes in NaCl R^ diminishes to R2 accord-ing to the formula = Rie Kr in NaCl = We must also bear in mind that 0 diminishes duringthe exposure. Since this process is 6 times as r
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