INDEX 



257 



Penetration from balanced solutions, 



205, 214 



Permeability, as measured by con- 

 ductivity, 17, 195 



as measured by dif- 

 fusion, 206 



as measured by exos- 

 mosis, 206, 207 



as measured by tis- 

 sue tension, 208 



as a measure of vital- 

 ity, 161 



in relation to stimu- 

 lation, 233 if, 235 



of unlike membranes 

 in the cell, 231 If 



Pfeffer, 227, 228 

 Plasma membrane, 227 ff 

 Plasmolysis, 159, 201, 213 

 Pierce, 29 

 Polacci, 21 

 Porphyra, 217 



Potassium cyanide, effect on per- 

 meability, 55 

 penetration of, 



203 



nitrate, pene- 

 tration of, 

 208, 212 



Price, 227 



Probable error, 38 



Protoplasm, conductance of, 219 ff 



R 



Raber, 40, 41 

 Ramsden, 227 

 Reaction, catenary, 57 ff, 98, 122 



monomoleeular, 15 

 Reaction chamber hypothesis, 232 

 Recovery, 19, 79 ff 



after exposure to alcohol 



190 

 after exposure to calcium 



chloride, 107, 115 If 

 after exposure to chloro- 

 form, 188 

 after exposure to ether, 



186 



after exposure to hyper- 

 tonic solutions, 95, 96 



Recovery, after exposure to mix- 

 tures of sodium and 

 calcium, 151 11' 

 after exposure to sodium 

 chloride, 92, 102 If, 

 110 ff 



measured by rate of res- 

 piration, 95 

 partial, 92 if 



Red blood corpuscles, measurement 



of conduc- 

 tivity, 21 

 effect of an- 

 esthetics on 

 conductiv- 

 ity of, 1 9M 

 Reed, 31 



Respiration, as affected by hyper- 

 tonic solutions, 95. 915 

 as affected by hypo- 

 tonic solutions, 95, 96 

 as affected by sodium 



chloride, 95, 96 

 Rhode, 227 

 Rhodymcnia, 49, 50 



antagonism, 174 

 color changes of, 175 

 effect of aluminum on 

 the conductivity of, 

 49 



effect of anesthetics 

 on the conductivity 

 of, 193 



effect of barium on the 

 conductivity of, 49 

 effect of calcium on the 

 conductivity of, 49 

 effect of cerium on the 

 conductivity of, 49 

 effect of lanthanum 

 on the conductivity 

 of, 49 



effect of magnesium 

 on the conductivity 

 of, 49 



effect of manganese 

 on the conductivity 

 of, 49 



effect of nickel on the 



conductivity of, 49 



effect of potassium on 



the conductivity of, 



50 



