INDEX. 



523 



Laurie (A. P.) on the electromotive 

 forces developed during the com- 

 bination of zinc and iodine in the 

 presence of water, 289 ; on mea- 

 surements of the electromotive 

 force of a constant voltaic cell with 

 moving plates, 409. 



Light, on Clerk Maxwell's electro- 

 magnetic theory of, 162. 



Liquids, on the velocity of efflux of, 

 285. 



Lodge (Dr. 0,) on the seat of the 

 electromotive forces in voltaic and 

 thermoelectric piles, 263. 



Madan (H. Gr.) on some organic 

 substances of high refractive power, 

 245. 



Magnetic investigations, 449. 



Magnetism, on the diurnal period of 

 terrestrial, 349; on the cause of 

 the solar- diurnal variations of ter- 

 restrial, 435. 



Magnetization, on, 515. 



Mascart (M.) on magnetization, 515. 



Mather (T.) on the calibration of 

 galvanometers by a constant cur- 

 rent, 29. 



Mayer (Prof. A. M.) on a method of 

 measuring the vibratory periods of 

 tuning-forks, 285. 



Mercury, on the vapour-pressures of, 

 49. 



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

 the elements, 151. 



Mist and vapour, observations on, 

 451. 



Moon (R.) on the integration of par- 

 tial differential equations, 63. 



Mordey (W. M.) on the dynamo as 

 a generator and motor, 20. 



Muir (Dr. T.) on the differential 

 equation of a conic, 143. 



Nicol (Dr. W. W. J.) on saturation 

 of salt-solutions, 70. 



Nicol prism, on a simple modification 

 of the, 478. 



Ohm, on the determination of the, 

 10. 



Optics, on some fundamental propo- 

 sitions in, 466. 



Ormerod (G. W.) on old sea-beaches 

 at Teignmouth, 160. 



Oxygen, on the deviation of, from 

 Boyle and Mariotte's law, 368. 



Peltier-effect at different tempera- 

 tures, on the, 359. 



Perry (Prof. J.) on the seat of the 



electromotive forces of a voltaic 

 cell, 51 -, on the winding of volt- 

 meters, 100 ; on some thermo- 

 dynamical relations, 255. 



Pickering (Prof. S. U.) on the standar- 

 dizing and calibration of mercurial 

 thermometers, 180 ; on experi- 

 mental error in calorimetric work, 

 324 ; on delicate calorimetric ther- 

 mometers, 330. 



Pilleur (M.) on some thermoelectric 

 experiments, 519. 



Polarizing prisms, on some new, 476. 



Poynting (Prof. J. H.) on the dis- 

 charge of electricity in an imper- 

 fect insulator, 419. 



Precipitation, on the theory of frac- 

 tional, 119. 



Pyroelectricity, experimental proof 

 of the law that both electricities 

 are developed at the same time and 

 in the same quantities for, 78. ■ 



Ramsay (Dr. W.) on some thermo- 

 dynamical relations, 33, 135. 



Rayleigh (Lord) on Himstedt's de- 

 termination of the ohm, 10 ; on 

 the reaction upon the driving- 

 point of a system executing har- 

 monic oscillations of various pe- 

 riods, 369 ; on the self-induction 

 and resistance of straight conduc- 

 tors, 381 ; on some fundamental 

 propositions in optics, 466. 



Reynolds (Prof. O.) on the flow of 

 gases, 185. 



Riicker (A.W.) on a relation between 

 the critical temperatures of bodies 

 and their thermal expansions as 

 liquids, 431. 



Salt-solutions, on saturation of, 70, 

 417. 



Schuster (A.) on the diurnal period 

 of terrestrial magnetism, 349. 



Siemens (W.) on the conservation of 

 energv in the earth's atmosphere, 

 453. 



Stewart (Prof. B.) on the solar- 

 diurnal variations of terrestrial 

 magnetism, 435. 



Sutherland (W.) on the mechanical 

 integration of the product of two 

 functions, 141. 



Tait (Prof.) on the foundations of 

 the kinetic theory of gases, 343, 481 i 



Temperatures, on a relation between 

 the critical, of bodies and their 

 thermal expansions as liquids, 431. 



