INDEX. 



547 



Ice, on the apparent viscosity of, 



120. 

 Idunium, on the new element, 232. 

 Illingworth (B.) on the thermal re- 

 lationship between water and cer- 

 tain salts, 123, 499. 

 Induction-frictional machine, effect of 

 moisture on the current of an, 80. 

 Inorganic compounds, on the periodic 

 law as illustrated by certain phy- 

 sical properties of, 1. 

 Iron, on the molecular changes pro- 

 duced in, by heating and cooling, 

 473. 

 Iron amianthus, on, 377. 

 Irving (Rev. A.) on the Dias and 



Trias of Central Europe, 228. 

 Jellett (Dr. J. H.) on Laplace's 



equation, 400. 

 Judd (Prof. J. W.) on the Jurassic 

 rocks which underlie London, 382. 

 Kissling (M.) on phenomena of dif- 

 fraction in moist air, 160. 

 Kohlrausch (Prof. F.) on the distance 

 between the poles of a magnet, 

 and on the determination of mo- 

 ments of inertia by means of bifilar 

 suspension, 390, 446 ; on the elec- 

 trical conductivity of water dis- 

 tilled in vacuo, 542. 

 Koto (Dr. B.) on some Japanese 



rocks, 226. 

 Kriiger (R.) on the effect of moisture 

 on the current of an induction 

 frictional machine, 80. 

 Kundt (Prof. A.) on the electro- 

 magnetic rotation of the plane of 

 polarization of light by means of 

 iron, cobalt, and nickel, 308. 

 Langley (S. P.) on the amount of 



the atmospheric absorption, 289. 

 Laplace's equation, on, 400. 

 Light, on the electromagnetic rota- 

 tion of the plane of polarization of, 

 by iron, cobalt, and nickel, 308. 

 Liveing (Prof. G. D.) on the spectral 

 lines of the metals developed by 

 exploding gases, 161. 

 Lodge (Prof. O. J.) on a method of 

 calculating the ratio of the two 

 specific heats of gases, 472. 

 Loudon (Prof. J.) on geometrical 

 methods in the theory of refrac- 

 tion, 485. 

 M'Leod (H.) on a new sunshine- 

 recorder, 141. 



Magnetic lines of force, on the'sup- 



posed repulsion between, 494. 

 Magnetism of organic bodies, on the 



78. 

 Magneto-electric phenomenon, 216. 

 Magnets, on permanent, 142 ; on the 



distance of the poles of, 390, 446. 

 Matrices, on the general unilateral 



equation in, 454. 

 Mello (Rev. J. M.) on a specimen of 



iron amianthus, 377. 

 Melting- and boiling-points, on the 

 calculation of, by the method of 

 limits, 14. 

 Metallic vapours, on the infra-red 



emission-spectra of, 386. 

 Metals, on the spectral lines of the, 

 developed by exploding gases, 161. 

 Miers (H. A.) on the hemihedrism of 



cuprite, 127. 

 Mills (Dr. E. J.) on the numerics of 



the elements, 393. 

 Mobius's theorem on the reversion of 

 certain series, on applications of, 

 518. 

 Molecular latent heat, on, 54. 

 Moon (W.) on a method of calcula- 

 ting the ratio of the two specific 

 heats of gases, 372. 

 Motion, on Prof. Sylvester's third law 



of, 459. 

 Muir (Dr. T.) on an overlooked dis- 

 coverer in the theory of determi- 

 nants, 416. 

 Nicol (W. W. J.) on the molecular 

 volumes of salt-solutions, 179 ; on 

 the boiling-points of salt-solutions, 

 364. 

 Numerics of the elements, on the, 



393. 

 Organic bodies, on the magnetism of, 



78. 

 Oxygen, on the liquefaction of, 210. 

 Ozone, on the poisonous effects of, 97. 

 Parker (Dr. G. W.) on the geology 

 and mineralogy of Madagascar, 

 385. 

 Penning (W. H.) on the coal-field of 

 • the Transvaal, 158. 

 Periodic law, on the, as illustrated 

 by certain physical properties of 

 inorganic compounds, 1 ; and the 

 occurrence of the elements in 

 nature, 194. 

 Perry (Prof. J.) on the gas-engine 

 indicator-diagram, 59. 



