423 



phenomena produced by, ii. 1 36, 154 ; 

 on the powers of metallic substances 

 as conductors of, ii. 298 ; electric 

 organs of the torpedo, ii. 37, 57, 354; 

 electrical phenomena exhibited in 

 vacuo, ii. 159; on the application of 

 electrical combinations to the pre- 

 servation of the copper sheathing of 

 ships, ii. 207, 213, 242, 284; experi- 

 ments on electric conduction, ii. 350. 

 electric and chemical theories of 

 galvanism, ii. 382 ; on the relations 

 of electrical and chemical changes, 

 ii.281; on electrical and magnetic 

 rotations, ii. 287 ; electro-chemical 

 researches, i. 313, 350 ; on some new 

 electro-chemical phenomena, i. 480; 

 brief statement of the origin and pro- 

 gress of electro- chemical science, ii. 

 281. 



Electro-magnetism : new phenome- 

 non of, ii. 189; peculiar apparatus for 

 performing experiments in, ii. 192; 

 electro- magnetic properties of metal- 

 liferous veins in the mines of Corn- 

 wall, ii. 412. 



Elephant, on the organ of hearing in 

 the, i. 1 ; elephant's tusk, in which 

 the iron head of a spear was found, 

 i. 43. 



Elk, fossil, of Ireland, ii. 246. 



Ellipsoids, homogeneous, on the attrac- 

 tions of, i. 341. 



Elliptic polarization, on the phenomena 

 and laws of, ii. 407. 



Ellipticity of the earth, ii. 168, 194. 



Elm-tree, on a substance called Ulmin 

 from, i. 447. 



Embalming, on theart of, i.201; ii.240. 



P^mery, composition of, i. 94. 



Emu, description of the solvent glands 

 and gizzard of, i. 449. 



Equations : methods of cleaning of 

 quadratic and higher surds, i. 478 ; 

 numerical, new method of solving, 

 ii. 117. 



Equilibrium of a revolving fluid, theory 

 of, ii. 206. 



Equinoxes, on the precession of the, 

 i. 253. 



Ether, on the process by which it is 

 formed, ii. 350. 



Eudiometer, new, i. 270. 



Euler's formula for the rolling pendu- 

 lum, remarks on, ii. 106. 



Evelyn (Sir G. S.), account of the re- 



measurement of the cube, cylinder, 

 and sphere, used by, ii. 150. 



Expansible fluids, on the effect of tem- 

 perature on the refractive index and 

 dispersive power of, ii. 345. 



Expectorated matter, on, i. 339. 



Eye : mechanism of the, i. 35 ; case of 

 the recovery of the sight after having 

 been deprived of it by cataracts, i.58; 

 on its power to adjust itself todifferent 

 distances, when deprived of the cry- 

 stalline lens, i. 62 ; chemical nature 

 of the humours of the, i. 108; ac- 

 count of two children born with ca- 

 taracts, i. 254; experiments on vision, 

 i.411; observations on shortsighted- 

 ness, i. 444, 454; account of a mem- 

 brane now first described, ii. 1 16; its 

 anatomical structure, ii. 159; on the 

 motions of, ii. 190, 195 ; on semi- 

 decussation of the optic nerves, ii. 

 211; case of a lady who received 

 sight at an advanced age, ii. 289. 



Eyes, on the apparent direction of, in 

 a portrait, ii. 214. 



F. 



Face, on the nerves of the, ii. 266, 380. 



Fairy-rings, on, i. 260. 



Fallows (Rev. F.) on a curious appear- 

 ance observed upon the moon, ii. 167; 

 catalogue of nearly all the fixed stars 

 between the zenith of Cape Town and 

 the South Pole, ii. 222 ; observations 

 with the invariable pendulum, at 

 the Cape of Good Hope, for deter- 

 mining the compression of the earth, 

 ii. 396. 



Falmouth and Madeira, observations 

 made with chronometers for ascer- 

 taining the longitude of, ii. 219. 



Faraday (M.) on two new compounds 

 of chlorine and carbon, and on a new 

 compound of iodine, carbon, and hy- 

 drogen, ii. 138 ; on a new compound 

 of chlorine and carbon, ii. 153; on 

 the alloys of steel, ii. 169 ; on fluid 

 chlorine, ii. 190 ; on the condensa- 

 tion of several gases into liquids, ii. 

 192 ; on new compounds of carbon 

 and hydrogen, ii. 248; on the mutual 

 action of sulphuric acid and naphtha- 

 line, and on a new acid produced, ii. 

 265 ; on the existence of a limit to 

 vaporization, ii. 286 ; on the maim- 



