522 



INDEX. 



Harrison (Prof. J. B.) on the geology 

 of Barbados and the West Indies, 

 287. 



Hartley (Prof. W. N.) on relations 

 between the lines of various 

 spectra, 359. 



Heat, on the effect of, on the mag- 

 netic susceptibility of nickel, 136; 

 on the change in the absorption- 

 spectrum of cobalt glass produced 

 by, 317 ; on an improved method 

 of determining specific, by the 

 electrical current, 518. 



Hertz oscillations, on the measure- 

 ment of dielectric constants by 

 means of, 172. 



Hertz's electrical vibrations in air, 

 on, 289, 290, 516. 



Hibbert (W.) on secondary batteries, 

 42. 



Hicks (Dr. H.) on the rocks of N. 

 Devon, 69. 



Hill (Rev. E.) on the north-west 

 region of Charnwood Forest, 143. 



Hjeltstrom (S. A.) on the con- 

 ductivity of snow, 148. 



Holland (T. H.) on rock-specimens 

 from the Korea, 67. 



Hull (Prof. E.) on the physical 

 geology of Tennessee, 70. 



Hydrate- theory of solution, on the 

 reduction of results of experiments 

 with special reference to the, 418. 



Incandescent lamps, on the optical 

 useful effect of, 147. 



Induction, on coefficients of, 329. 



Influence-machine, on an alternating 

 and experimental, 507. 



Interference-fringes in the focus of a 

 telescope, on the visibility of, 256. 



Interference-methods, on the applica- 

 tion of, to spectroscopic measure- 

 ments, 338. 



Iron, on Kerr's magneto-optic phe- 

 nomenon in the case of equatorial 

 magnetization of, 293 ; on the 

 points of recalescence in, 433. 



Irving (Rev. A.) on the stratigraphy 

 of the Bagshot beds of the London 

 Basin, 67. 



Jukes-Browne (A. J.) on the geology 

 of Barbados and the West Indies, 

 287. 



Kayser (Prof.) on the line-spectra of 

 the elements of Mendelejeff's 

 second group, 368. 

 Kerr's magneto-optic phenomenon in 



the case of equatorial magnetiza- 

 tion of iron, 293. 



Klemencic (Prof.) on the reflexion of 

 rays of electrical force from plates 

 of metal and of sulphur, 366. 



Korea, on the rocks of the southern 

 half of the, 67. 



Lamb (H.) on the flexure of a flat 

 elastic spring, 182. 



Lea (M. C.) on allotropic silver, 238, 

 320, 497. 



Lecher (E.) on the measurement of 

 dielectric constants by means of 

 Hertz oscillations, 172 ; on elec- 

 trical waves, 290. 



Lens-combinations, on the focometry 

 of diverging, 511. 



Light, on the elementary treatment of 

 problems on the diffraction of, 77. 



Lightning discharge, on the, 441. 



Liquid, on the calculation of the 

 coefficient of viscosity of a, 407. 



Lupton (S.) on the reduction of re- 

 sults of experiments, with special 

 reference to the hydrate-theory of 

 solution, 418. 



McCowan (J.) on the heating of con- 

 ductors by electric currents, 259. 



Magnet, on the behaviour of the 

 magnetic field about a revolving, 

 100. _ 



Magnetic elements, on the diurnal 

 variations of, 36. 



needles, on the influence of the 



bending of, on the apparent mag- 

 netic dip, 275. 



susceptibility of nickel, on the 



effect of heat on the, 136. 



Magnetism, on the solution of a 

 geometrical problem in, 281. 



Magnetization, on the measurement 

 of the time of the fall of, in a mag- 

 netized iron cylinder, 64. 



Magneto - optic phenomenon, on 

 Kerr's, in the case of equatorial 

 magnetization of iron, 293. 



Manganese tetrachloride, on, 469. 



Marr (J. E.) on the Snap granite, 

 288. 



Marten (H. J.) on water-worn and 

 pebble-worn stones from Holt 

 Fleet, 70. 



Mathias (E.) on the heat of evapora- 

 tion of liquefied gases, 291. 



Mensbrugghe (G. v. der) on the con- 

 densation of aqueous vapour in 

 capillary spaces, 74. 



