Page:Collected Physical Papers.djvu/420

400 Coherer, self-recovering types of, 128, 163

„, systematic study of, 120

Comparator, Electric, 282 Conductivity hysteresis, exhibited by single and multiple contacts, 241

Conductivity Recorder, 169, 230

Conductivity variation, effect of allotropic change on, 142

„„,„„continuous radiation on, 175, 189

„„,„„cyclic variation of, E. M. F. on, 240

„„,„„external changes on, 244

„„, relation of, with intensity of radiation, 178

Continuous electric radiation, effect of, on Ag′ 203

„stimulation, effect of, on tin-cell, 202, 203

„„,„„, on Silver cell, 202

„„,„„, on Ni-cell, 202, 203

„„, reversal produced by, 204, 215

„visible radiation, effect of, on AgBr, 203

Crescograph, High Magnification, 347

„„„, Balanced form of, 351

„„„, records of growth by, 349

„, Magnetic, 357

„„, Demonstration form of, 358

Crystals. different system, for electric polarisation, 95

, electro magnetic, 114

„„,„„ concentric wood for, 114

„„,„„ minerals for, 115

Decoherence, phenomenon of, 128

Desmodium gyrans, effects of, stimulants and depressants on pulsation of, 373

Dextrose and levulose, electric analogues of, 109

Double absorption and double conductivity, exhibited by chrysotile, 73; epidote, 74; nemalite, 73

Double conductivity, its relation to double absorption, 73

Double refraction of electric ray, 95

, photosynthetic of green leaves, 336

Electric radiation, electromotive variation induced by, 183

Electric radiation and mechanical stimulation, similarity of effects of, 204

Electric radiation and visible radiation, similarity of effects of, 187

Electric rays, complete polarisation of by, book, 99; chrysotile, 98; epidote, 9; jute cell, 17; nemalite, 9; serpentine, 16

Electric rays, polarisation, of by books, 99; crystals, 8, 95; gratings, 2; human hair, 96; strained dielectric, 20; vegetable fibres, 17

Electric rays, lens for parallel beams of, 5

„„, partial reflection of, by air-film, 53

„„, partial transmission of, by air film, 53

„„, total reflection of, 44