566 



INDEX. 



Hydrodynamics, on the general differ- 

 ential equations of, 436. 



Iridium, on tile specific heat of, 111. 



James (Col. Sir H.) on projections for 

 maps, 306. 



Jerrard (G. B.) on M. Hermite's 

 argument relating to the alge- 

 braical resolution of equations of 

 the fifth degree, 146, 196, 469. 



Joule (Dr. J. P.) on the probable 

 cause of electrical storms, 334. 



Karsten (Dr. H.) on the oxidation of 

 the hydrocarbon-compounds con- 

 tained in the atmosphere, 541. 



Kirchhoff (G.) on the relation of the 

 lateral to the longitudinal expan- 

 sion in rods of spring steel, 28. 



Kirkman (Rev. T. P.) on the puzzle 

 of the fifteen young ladies, 198. 



Lakes, on the glacial origin of certain, 

 413. 



Lamont (Dr. J.) on the connexion 

 between earthquakes and magnetic 

 disturbances, 559. 



Land-tracts, on the form and distri- 

 bution of the, during the secondary 

 and tertiary periods, 161, 269, 382. 



Lassaigne (M.) on the bromide of 

 cyanogen, 473. 



Lead, contributions to the metallurgy 

 of, 534. 



Lewis (R. T.) on the changes in the 

 apparent size of the moon, 380. 



Lievrite, on the position of, in the 

 mineral series, 348. 



Light, on the application of the theory 

 of molecular vortices to the action 

 of magnetism on polarized, 85. 



Linnemann (M.) on sulphocyanic acid, 

 473. 



Liquids, on the cohesion-figures of, 

 186. 



Lithium, on the blue band in the spec- 

 trum of, 63 ; on the specific heat of, 

 107. 



Logeman (Prof.) on the repulsion of 

 a rectilinear electrical current on 

 itself, 140, 365. 



Magnesium, on the specific heat of, 

 107. 



Magnetic dip, on the secular change 

 in the, 223. 



Magnetism, on the action of, on po- 

 larized light, 85. 



Magnus (Prof.) on the passage of ra- 

 diant heat through moist air ; and 



on the hygroscopic properties of 



rock salt, 249, 252. 

 Manganese, on the specific heat of, 



112. 

 Maps, on projections for, 306. 

 Marcet (Prof.) on the comparative 



effects of nocturnal radiation from 



the surface of the ground and over 



a large sheet of water, 9. 

 Marie-Davy (M.) on the conductibi- 



lity of saline solutions, 79. 

 Matthiessen (A.) on the cause of the 



vesicular structure in copper, 81 ; 



on the influence of traces of foreign 



metals on the electric conducting 



power of mercury, 171. 

 Maxwell (Prof. J. C.) on physical 



lines of force, 12, 85. 

 Mercury, on the electric conducting 



power of, 171, 457. 

 Meteorites, on the presence of lithion 



in, 474. 

 Meteorological telegraphy, observa- 

 tions on, 395. 

 Methylenitane, on the formation of, 



475. 

 Mineralogy, notes on, 47, 160, 348, 



461,561. 

 Moon, on the changes in the apparent 



size of the, 380. 

 Morren (M.) on the phosphorescence 



of rarefied gases, 415. 

 Morris (Prof. J.) on the carboniferous 



limestone of Shropshire, 243. 

 Moseley (Rev. H.) on the motion of a 



plate of metal on an inclined plane, 



and on the descent of glaciers, 72. 

 Murchison (Sir R. I.) on the inappli- 

 cability of the term Dyas to the 



Permian group of rocks, 65. 

 Nickel, on the specific heat of, 113. 

 Niobium, on the composition of the 



minerals containing, 561. 

 Nitrification, observations on, 466. 

 Osmium, on the specific heat of, 110. 

 Osmose, observations on, 379. 

 Oxygen, on the allotropic states of, 



466. 

 Pauli (Dr. P.) on the action of nitrate 



of sodium on the sulphide of so- 

 dium, 248. 

 Petroleum-springs of North America, 



note on the, 239. 

 Phosphorescence, on the influence of 



heat on, 335 ; of rarefied gases, on 



the, 415, 



