INDEX. 



545 



Colardeau (E.) on freezing mixtures 

 made with solid carbonic acid, 394. 



Collins (J. H.) on the Sudbury cop- 

 per deposits, 235. 



Conduction, on irreciprocal, 126. 



Constants, on thermochemical, 53. 



Contact, on electromotive forces of, 

 43. 



Contact-angle of liquids and solids, 

 on the, 162. 



Cook (Dr. E. H.) on an undulatorj 

 movement accompanying the elec- 

 tric spark, 291. 



Crystal, on the reflexion of light at a 

 twin plane of a, 241. 



Davison (C.) on the movement of 

 scree-material, 237. 



Dawson (Sir J. W.) on the Eozoic 

 and Palaeozoic rocks of the Atlantic 

 coast of Canada, 233. 



Dewar (Prof.) on the absorption- 

 spectrum of oxygen, 286. 



Dispersion, on the law of, 385 ; on 

 the application of Sir W. Thom- 

 son's theory of a contractile aether 

 to, 521. 



Du Bois (H. E. J. G.) on suscepti- 

 bility and Verdet's constant of 

 liquids, 314. 



Dynamo machine, on the conditions 

 of self-excitation in a, 469. 



Electric action on photographic dry 

 plates, on figures produced by, 502. 



discharge, on the influence of 



light upon, 272. 



spark, on an undulatory move- 

 ment accompanying the, 291. 



Electrical phenomena, notes on cer- 

 tain, 475. 



Electricity, on the connexion between 

 the indices of refraction of the 

 metals and their power of con- 

 ducting, 16 ; on the action of, on 

 the vesicles of condensed water, 

 465. 



Electroareometer, on the, 238. 



Electrolysis, experiments on, 126. 



Electromagnetic waves and the forced 

 vibrations of, svstems, on, 360, 

 434, 488. 



Electromotive forces of contact, on,43. 



Electromotors, on the governing of, 

 63. 



Electroscope for purposes of demon- 

 stration, on an, -467. 



Eozoic rocks of the Atlantic coast of 

 Canada, on the, 233. 



Ewing (Prof. J. A.) on the magnetic 

 permeability of an iron bar, 274. 



Freezing-mixtures made with solid 

 carbonic acid, on, 394. 



Gardiner (Miss M. T.) on the Green- 

 sand Bed at the base of the Thanet 

 Sand, 311. 



Gases and solutions, on the function 

 of osmotic pressure in the analogy 

 between, 81. 



Gee (W. W. H.) on irreciprocal con- 

 duction, 126. 



Geological Society, proceedings of 

 the, 232, 310. 



Glass, on the birefringent action of 

 strained, 321. 



Glazebrook (R. T.) on the application 

 of Sir W. Thomson's theory of a 

 contractile aether to double refrac- 

 tion, dispersion, metallic reflexion, 

 and other optical problems, 521. 



Haecker's formula for the lifting- 

 power of mag-nets, on, 70. 



Hallwachs (W.) on the electrifica- 

 tion of metal plates by irradiation 

 with electrical light, 78. 



Harley (Rev. R.) on the general 

 quartine, or, the incriticoid of the 

 fourth degree, 456. 



Hatch (Dr. F. H.) on the spheroid- 

 bearing granite of Mullaghderg, 

 232. 



Heaviside (O.) on electromagnetic 

 waves, and the forced vibrations 

 of electromagnetic systems, 360, 

 434, 488. 



Heen (P. de) on the changes in the 

 specific heat of liquids near the 

 critical temperature, 467. 



Hildebrand (R.) on the influence of 

 moisture on the length of certain 

 woods, and ivory, 319. 



HofF(Prof . J. van't) on the function of 

 osmotic pressure in the analogy be- 

 tween solutions and gases, 81. 



Holden (H.) on irreciprocal conduc- 

 tion, 126. 



Holtz (W.) on a pendulum experi- 

 ment, 396. 



Plutton (Capt. F. W.) on a horn- 

 blende-biotite rock from New 

 Zealand, 234. 



Hydrogen, on the compressibility of, 

 up to 3000 atmospheres, 541. 



Hydrostatic balance, on a, 266. 



Incriticoid of the fourth degree, on 

 the, 456. 



