﻿of alcohol and the other anesthetics investigated is only one of 

 degree. It is probable that there is some recovery in ether, 



TABLE VII 











Solution 









: 



Soo 

 Boo 



Sea water con- 

 taining o . 05 1 M 



renewed every 



s lChtrciSon 





chloroform, and chloral hydrate, but that it is so 

 transitory as to be difficult of observation. 



™„« It is evident that 



slight and ! 



Fig. 6.— Curve showing the de 

 rease of permeability of Lami- 

 aria saccharina under the influence 



followed by a rapid increase in per- 

 meability when placed in a stronger 

 :oncentration of alcohol (o . 2385 M 



table con- 

 centrations of anesthetics produce 

 a marked decrease of permeability, 

 which may amount to 15 per cent 

 or even more. 9 This condition 

 may be maintained for a long time 

 if the concentration is not too high; 

 with higher concentrations the period 

 is shortened and may become so 

 short as to be observed with diffi- 

 culty. This decrease of permeability 

 can be easily and quickly reversed 

 by replacing the tissue in sea water. 

 It does not seem to produce any 

 injury if the concentration be not 

 too high. The relative concentra 

 tions necessary to produce this result 

 correspond closely with those required 



; somewhat on the condition of 1 



Mate 



