INDEX. 



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Kcettlitz (Dr. R.) on the geology of 

 Franz Josef Land. 507. 



Lanza (Prof. G.) on a method of 

 measuring- the torsional angle of a 

 rotating shaft or spiral spring, 2G0. 



Latent heat of evaporation of zinc 

 and cadmium, on the, 345. 



Lehfeldt (Prof. R. A.) on the pro- 

 perties of liquid mixtures, 42. 



Light, on the determination of white, 

 210 ; on continuity in undulatory 

 theory of visible, radiant heat &c, 

 494. 



Liquid mixtures, on the properties 

 of, 42. 



Lodge (Prof. 0. J.) on the conclu- 

 siveness of the Michelson-Morley 

 aether experiment, 343 ; on abso- 

 lute velocity and the mechanical 

 function of an aether, 414. 



McClelland (J. A.) on the conduc- 

 tivity of the hot gases from flames, 

 29. 



MacGregor (Prof. J. G.) on the con- 

 ductivity method of studying 

 moderately dilute aqueous solu- 

 tions of double salts, 509. 



Madan (H. G.) on an ebbing and 

 flowing well at Newton Nottage, 

 171. _ 



Magnetic force, on the deflexion of 

 the electric discharge through 

 gases by, 429. 



induction, on the distribution 



of, in straight iron rods, 478. 



Magnetism, on possible effects of 

 solar magnetization on periodic 

 variations of terrestrial, 395. 



Magnetostriction, on, 261. 



Magnets, on equilibrium - figures 

 formed by floating, 162. 



Mather (T.) on galvanometers, 349. 



Metals, on contact-electricity of, 82. 



Michrim, definition of the word. 497. 



Microscopic vision, on, 156. 



Mikrom, definition of the word, 497. 



Morton (G. H.) on the carboniferous 

 limestone of Llandudno, 259. 



Nagaoka (H.) on magnetostriction, 

 261. 



Newton (E. T.) on rocks and fossils 

 from Franz Josef Land, 508. 



Newton's rings, on a method of 

 viewing, 245. 



Nickel, on the effect of hydrostatic 

 pressure on the magnetization of, 

 261. 



Nutation of a rotating" ellipsoidal 

 shell, on the, 545. 



Optical phenomena, on dynamical 

 illustrations of certain, 227. 



Orr (Prof. W. McF.) on the forced 

 precession and nutations of a rota- 

 ting ellipsoidal shell, 545. 



Pearson (Prof. K.) on continuous 

 beams, 306. 



Pendulums, on the theory of con- 

 nected, 236. 



Phosphorescence, on, 402. 



Pidgeon (W. R.) on an influence- 

 machine, 564. 



Pliocene deposits of the East of 

 England, on the, 166. 



Porter (T. C.) on a method of viewirg 

 Newton's rings, 245. 



Precession of a rotating ellipsoidal 

 shell, on the, 545. 



Prisms of aniline dyes, on a method 

 of preparing, 380. 



Pyrometer, improvements in the 

 Roberts- Austen recording, 59. 



Quincke (Prof. G.) on the balance 

 method of measuring magnetic 

 susceptibility, 572. 



Radiation, on the pressure of, 414. 



Rayleigh (Lord) on isoperiodic sys- 

 tems, 567. 



Reade (T. M.) on post-glacial beds 

 exposed in the cutting of the new 

 Bruges canal, 506 ; on a high-level 

 marine drift at Colwyn Bay, 506. 



Recaiescence, on the anomalous 

 changes in the length and tempe- 

 rature of iron and steel during, 173. 



Reid (C.) on the Eocene deposits of 



Ripples, on the photography of, 290. 



Roberts- Austen recording pyrometer, 

 improvements in the, 59. 



Rontgen rays, on the ratio of the 

 velocities of the two ions produced 

 in gases b}^, 120; on the nature 

 of, 253 ; on the charge of elec- 

 tricity carried by the ions produced 

 by, 528. 



Rowland's thermometers,comparison 

 of, with the Paris standard, 1.] 



Ruhmkorff s coil, on the function of 

 the condenser in a, 172. 



Salts, on the conductivity of dilute 

 aqueous solutions of double, 509. 



Sam (T. B. F.) on the origin of the 

 auriferous conglomerates of the 

 Gold Coast Colony, 171. 



Schuster (Prof. A.) on possible effects 

 of solar magnetization on periodic 

 variations of terrestrial magnetism, 

 395. 



Shrubsole (0. A.) on high-level 

 gravels in Berkshire and Oxford- 

 shire, 505. 



