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WINTERSTEIN, H. 1916. Beitrage zur Kenntnis der Narkose und Per- Alcohol, effect on conductivity, 189 Alkali, effect on conductivity, 42 effect of acid on the con- ductivity of, 55 effect of calcium on the conductivity of, 175 Cadmium, effect on conductivity, 46 Csesium, penetration of, 203, 214 Caffeine, antagonism of, 171 ff effect on conductivity, measurement of conduc- tivity of, 21 Chloride, effect on conductivity, 40 Cobalt, effect on conductivity, 46 Conductivity, as a measure of per- meability, 17

monomolecular curve of, 15 Diffusion method of measuring per- meability, 159, 206 ff Distilled water, preparation of, 38, Dulse, see Rhodymenia Dyes, penetration of, 210 Dynamic equilibrium, 183 Eel grass, see Zostera Ehrlich, 228 Error, probable, 38 Erythrocytes, effect of anesthetics on conductivity of, 193 Ether, effect on conductivity, 184 ff Euglena, measurement of conductiv- ity, 21 effect of acid on the con- ductivity of, 55 effect of anesthetics on the conductivity of, 192

conductivity of, 50 partial recovery of, 97 recovery after exposure to Hofmeister, 232 Hopkins, 122 Horse chestnut, 182 Hydrogen ion, effect on conductiv- ity, 50 Hydroxyl ion, effect on conductivity, catenary reactions, 122 electrical phenomena and permeability, 236 Measurement of antagonism, 124 ff of life processes, 68 of toxicity, 71 ff, 94 Potassium cyanide, effect on per- meability, 55 penetration of, chloride, 107, 115 If after exposure to chloro- form, 188 after exposure to ether,

Recovery, after exposure to mix- tures of sodium and calcium, 151 11' after exposure to sodium chloride, 92, 102 If, 110 ff 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 antagonism, 174 color changes of, 175 effect of aluminum on the conductivity of, 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

Rhodymenia, effect of sodium on the conductivity of, 50 effect of sodium taurocholate on the conductivity of, 56 effect of strontium on the conductivity of, partial recovery of, 97 recovery after expos- ure to sodium and calcium, 87 structure of, 197 Rivers-Moore, 31 Roaf, 191 effect of lanthanum on the conductiv- ity of, 50 measurement of the sulphate, effect on conduc- tivity, 178 sulphocyanide, effect on Stimulation, changes in permeability associated with, 233 ff,

Temperature coefficient of life pro- cesses, 75 ff coefficient of electrical conductivity, 39