486 



INDEX. 



chlorides of the alkalies, alkaline 

 earths, and nitric acid in aqueous 

 solutions, on the, 417. 



Electric discharge, on a new method of 

 investigating the composite nature 

 of the, 47. 



Electrical problems, on graphical me- 

 thods of solving certain, 368. 



resistance of metals, researches 



on the, 78. 



Electricity, on the flow of, in a uni- 

 form plane conducting surface, 

 385, 453. 



Electrolysis of certain metallic chlo- 

 rides, on the, 425. 



Electrolytes, experimental investiga- 

 tion of the work of the current in 

 the interior of, 417- 



Electromagnet, on a new, 244, 332, 

 484. 



Equilibrium and initial and steady 

 motions, on general theorems re- 

 lating to, 218. 



Etna, on the eruption of, on the 29th 

 August, 1874, 126. 



Explosive bodies, on the decomposi- 

 tion of certain, 157. 



Flames, on the refleeting-power of, 

 50; on the reflection of sound 

 from, 428. 



Force, on Helmholtz's memoir on 

 the conservation of, 377. 



Foster (Prof. G. C.) on graphical 

 methods of solving certain electri- 

 cal problems, 368 ; on the flow of 

 electricity in a uniform plane con- 

 ducting surface, 385, 453. 



Galton (F.) on statistics byintercom- 

 parison, with remarks on the law 

 of frequency of error, 33. 



Gases, on the liberation of, from su- 

 persaturated solutions, 157, 302 ; 

 on the work that may be gained 

 during the mixture of, 311 ; on the 

 coefficient of friction of, 332 ; on 

 the spectra of, 333, 448. 



Geological Society, proceedings of 

 the, 73, 152, 237, 326, 408, 478. 



Gernez (D.) on the liberation of gases 

 from their supersaturated solutions 

 and the decomposition of certain 

 explosive bodies, 157. 



Gladstone (Prof. J. H.) on the elec- 

 trolysis of certain metallic chlorides, 

 425. 



Glaisher (J.W. L.) on partitions, 307. 



Goldstein (E.) on the spectra of gases, 

 333, 448. 



Graphite, on the specific heat of, 

 276. 



Grotrian (O.) on the electric conduct- 

 ing-power of the chlorides of the 

 alkalies, alkaline earths, and nitric 

 acid in aqueous solutions, 417. 



Guthrie (F.) on salt- solutions and 

 attached water, 1, 206, 266. 



Haarmann (W.) on coniferine and its 

 conversion into the aromatic prin- 

 ciple of Vanilla, 229. 



Hamilton's string-organ, on the ma- 

 thematical theory of, 98. 



Hautefeuille (P.) on the solution of 

 hydrogen in metals, and on the de- 

 composition of water by iron, 413. 



Heat, on the theory of, 154 ; on the 

 mechanical equivalent of, 416. 



Herschel (Prof. A. S.) on the spec- 

 trum of the aurora, 65. 



Holtz machine, experiments with the, 

 411. 



Hydrogen, on the solution of, in 

 metals, 413. 



Ice, on permanent, in a mine in the 

 Rocky Mountains, 77. 



Iron, on the decomposition of water 

 by, 413. 



Kohlrausch (Prof. F.) on the electric 

 conducting-power of the chlorides 

 of the alkalies, alkaline earths, and 

 nitric acid in aqueous solutions, 

 417. 



Light, on polarization by diffusion of, 

 50. 



Liquids, on some phenomena con- 

 nected with the boiling of, 432. 



Lockyer (J. N.), spectroscopic notes 

 by, 233, 320. 



Lodge (O. J.) on the flow of electri- 

 city in a uniform plane conducting 

 surface, 385, 453. 



Lyman (Prof. C. S.) on Venus as a 

 luminous ring, 159. 



Magnet, on the determination of the 

 quantity of magnetism in a, 482. 



Magnetism, studies on, 81, 186; on, 

 243. 



Mallet (R.) on volcanic energy, 144; 

 on expansion by refrigeration, 231. 



Mayer (Prof. A. M.) on the compo- 

 site nature of the electric discharge, 

 47 ; researches in acoustics by, 352, 

 428. 



