INDEX. 



.487 



Metallic chlorides, on the electrolysis 

 of certain, 425. 



Metals, on the electrical resistance of, 

 78; on the solution of hydrogen 

 in, 413. 



Mills (Dr. E. J.) on aniline deriva- 

 tives, 21. 



Molecular structure, on the evidence 

 of variation in, 235. 



Moon (R.) on Helmholtz's memoir 

 on the conservation of force, 377. 



Moutier (J.) on the expression of the 

 work relative to an elementary 

 transformation, 154. 



Nitric acid, on the electric conduct- 

 ing-power of, in aqueous solutions, 

 421. 



Obermayer (Capt. A. von) on the de- 

 pendence of the coefficient of fric- 

 tion of atmospheric air on tempe- 

 rature, 332. 



Palladium, on the conservation and 

 properties of a plate of, saturated 

 with hydrogen by electrolysis, 80. 



Partitions, on, 30/. 



Polariscope, on a new revolving, 

 472. 



Polarization by diffusion of light, on, 

 50. 



Primary forms, on, 134. 



Puluj (H. J.) on a lecture-room ap- 

 paratus for the determination of 

 the mechanical equivalent of heat, 

 416. 



Rainfall, on the sun-spot period and 

 the, 474. 



Rayleigh (Lord) on a statical theo-, 

 rem, 183 ; on general theorems 

 relating to equilibrium and initial 

 and steady motion, 218; on the 

 work that may be gained during 

 the mixing of gases, 311. 



Reflection, on extraordinary, 366. 



Refrigeration, on expansion by, 231. 



Rossetti (F.) on experiments with the 

 Holtz machine, 411. 



Royal Societv, proceedings of the, 

 144, 229, 320, 474. 



Salt solutions and attached water, on, 

 1 , 206, 266. 



Schwendler (L.) on the general theory 

 of duplex telegraphy, 108. 



Sea-water, on the -freezing of, 17. 



Silicon, on the specific heat of, 161, 

 294. 



Silvestri (Prof. O.) on the eruption of 

 Etna on the 29th August, 1874, 

 126. 



Soret (J.-L.) on polarization by dif- 

 fusion of light, 50. 



Sound, on the transmission of, 151 ; 

 on the law connecting the pitch of 

 a, with the duration of its residual 

 sensation, 352; on the reflection 

 of, from flames and heated gases, 

 428. 



Spectra, on the projection of pris- 

 matic, on a screen, 142 ; of gases, 

 on, 333, 448. 



Spectroscopic notes, 233, 320. 



Spectrum-analysis, researches in, 326. 



Spectrum of carbon, on the, 24, 104, 

 106. 



Spottiswoode (W.) on combination of 

 colour by means of polarized light, 

 146 ; on jt new revolving polari- 

 scope, 472. 



Statical theorem, on a, 183. 



Statistics by intercomparison, on, 33. 



Steel, on the magnetization of, 90, 

 329. 



Steel magnets, on the theory of, 

 199. 



String organ, on the mathematical 

 theory of Hamilton's, 98. 



Sun, on the spectrum of the, 326. 



Sun-spot period and the rainfall, on 

 the, 474. 



Telegraphv, on the general theory of 

 duplex, 108. 



Tiemann (F.) on coniferine and its 

 conversion into the aromatic prin- 

 ciple of vanilla, 229. 



Toepler (Prof. A.) on the experimen- 

 tal determination of diamagnetism, 

 246. 



Tomlinson (C.) on the action of solids 

 in liberating gas from solutions, 

 302; on some phenomena connected 

 with the boiling of liquids, 432. 



Treve (A.) on magnetism, 243. 



Tribe (A.) on the electrolysis of cer- 

 tain metallic chlorides, 425. 



Troost (L.) on the solution of hydro- 

 gen in metals, and on the decom- 

 position of water by iron, 413. 



Trowbridge (J.) on Camacho's new 

 electromagnet, 484. 



Tyndall (Prof. J.) on the transmis- 

 sion of sound, 151. 



