Page:Collected Physical Papers.djvu/421

Rh Electric Refraction, index of, by total reflection, 27

„Response, by method of relative depression or exaltation, 285

„„, in metals, 266

„„, universal applicability of, test of, 285

„Reversal, induction of, under sub-minimal stimulus, 203

„„, in Ag′ receiver. 180

„Touch, 127

„„, sign of, 144

„Waves, optical properties of, 87-92

Electro-molecular Explorer, 287

Electromotive variation, response by, method of, 251

„wave accompanying stimulation of metal, 277

Eectro-polariscope, 11

Energy, determination of distribution of, in solar spectrum, 362

Epidote, electric polarisation by, 75

Excitation, determination of velocity of, 369

„, Effect of temperature on velocity of transmission of, 369

, effect of, in AgBr cell, 190

„,„„, in tin, 269

„, in metals, 268, 269

„, in plants, 312

„, in receiver, 180, 182

Fatigued substance, effect of heat and mechanical disturbance on, 157, 158

„„, effect of mechanical stimulation on, 156

„„, restoration of sensitiveness of, 156

Formaldehyde. stimulating effect of minute traces of, on assimilation, 335

Fish, frog, see cardiograph.

, universal receiver, 187. 269

Galvanograph, 342

Glass, electric index of, refraction for, 41

Growth, determination of, absolute rate of, 349

„„„, by balance, 352

„„„, effect of chemical agents on, 351

„„„, effect of CO$2$ on, 353 „„„, effect of variation of temperature on rate of, 350, 358

„effect of wireless stimulation on, 354, 356

Electric response of, 329

„, Photosynthetic activity of, 330

Hysteresis, of conductivity exhibited by single and multiple contacts, 241

„, under cyclic variation of stimulation, 297

of refraction, by method of total reflection, for electric ray, 46

„„„by method of total reflection, for light, 56

„„„for light, effect of variation or strength of solution on, 66