INDEX. 



565 



the deviation of the, by the length 

 and arrangement of the needle, 149. 



Condensers, on the theory of sphe- 

 rical, 245. 



Copper, on the cause of the vesicular 

 structure in, 81. 



Croll (J.) on Ampere's experiment, 

 365. 



Crystals, on internal radiation in uni- 

 axal, 328. 



Cyanogen, on the bromide of, 473. 



De la Rive (A.) on the aurorae boreales, 

 and the phenomena which attend 

 them, 546. 



Dew-bow, note on a, 245. 



Dialysis, researches on, 290. 



Diffusion, on liquid, applied to ana- 

 lysis, 204, 290, 368. 



Dolomites, on some Irish, 51. 



Dronke (M.) on robinine, 476. 



Dyas,on the inapplicability of the term 

 to the Permian group of rocks, 65. 



Earthquakes and magnetic disturb- 

 ances, on the connexion between, 

 559. 



Egerton (Sir P.) on a new species of 

 Pterichthys, 243. 



Electrical storms, on the probable 

 cause of, 334. 



accumulation on coated glass, 



on the law of exploding distance 

 of, 484. 



Electricity, on the application of the 

 theory of molecular vortices to sta- 

 tical, 12 ; developed during evapo- 

 ration and during effervescence from 

 chemical action, on the, 494. 



Elements, on the spectra of the che- 

 mical, 63. 



Equation, on the transformation of a 

 certain differential, 266. 



Equations of the fifth degree, on the 

 algebraic resolution of, 146,. 195, 

 196, 469. 



Ethyle, on the bromide of, 476. 



Evans (F. J.) on the deviation of the 

 compass, 149. 



Evaporation, experimental researches 

 on the laws of, 126, 283. 



Fergusonite, on the composition of, 

 562. 



Fiebig (O.) on the influence of heat 

 on phosphorescence, 335. 



Fisher (Rev. O.) on the Bracklesham 

 Beds of the Isle of Wight basin, 

 241. 



FitzRoy (Rear-Admiral) on meteoro- 

 logical telegraphy, 395. 



Flint arrow-heads, on further disco- 

 veries of, 331, 394. 



Force, on physical lines of, 12, 85. 



Gases, on the relations of the elastic 

 force, density, and temperature in, 

 52 ; on some apparatus for deter- 

 mining the densities of, 337 ; on 

 the conduction of heat by, 417* 

 512. 



Gaugain (J. M.) on the theory of 

 spherical condensers, 245. 



Geikie (A.) on the date of the last 

 elevation of the central valley of 

 Scotland, 492. 



Geological Society, proceedings of the, 

 239, 331, 412, 492, 558. 



Gesner (Dr. A.) on the petroleum 

 springs of North America, 239. 



Glaciers, on the descent of, 72. 



Gladstone (Messrs.) onCollyrite, and 

 a native carbonate of alumina and 

 lime, 461. 



Glyceric acid, experiments on, 475. 



Graham (T.) on liquid diffusion ap- 

 plied to analysis, 204, 290, 368. 



Griess (P.) on a new class of organic 

 bases in which nitrogen is substi- 

 tuted for hydrogen, 553; on the 

 reproduction of non- nitrogenous 

 acids from amidic acids, 556. 



Hamilton (Prof. Sir R.) on the regu- 

 lar inscribed polygon of twenty 

 sides, 267. 



Harkness (Prof.) on the sandstones of 

 Dumfriesshire, 492. 



Harris (Sir W. S.) on some new phe- 

 nomena of residuary charge, 484. 



Haughton (Rev. S.), notes on minera- 

 logy by, 47. 



Heat, on the resistance to the con- 

 duction of, 336; on the conduc- 

 tion of, by gases, 417* 512. 



, radiant, on the passage of, 



through moist air, 249; remarks 

 on recent researches on, 252. 



■ , specific, of some simple bodies, 



on the, 103. 



Hislopite, note on, 50. 



Hiibner (M.) on some decompositions 

 of the chloride of acetyle, 472. 



Ilunterite, note on, 50. 



Hydrocarbons, on the oxidation of 

 the, contained in the atmosphere, 

 541. 



