INDEX. 



557 



Foote (Mrs. E.) on a new source of 

 electrical excitation, 239. 



Force, on gravitation and the con- 

 servation of, 81 ; on the measure 

 and transfer of, 329. 



Frankland (Prof.) on a new series of 

 compounds derived from ammonia 

 and its analogues, 149. 



Fremy (M.) on the jjreparation of 

 metallic chromium and manga- 

 nese, 112. 



Fresenius (Ur. R.) on the occurrence 

 of formic and propionic acids in 

 mineral waters, 114. 



Function, elliptic, on the cubic trans- 

 formation of an, 3()3. 



Gages (A.) on pseudomorphic tre- 

 molite, 180. 



Galvanometer, on an improved, 432. 



Garnets, on the composition of, 160. 



Gassiot (J. P.), on a Ruhmkorff's 

 induction apparatus, 4C6. 



Gaudin (M.) on the production of 

 artificial sapphires, 109. 



Gemmellaro (G. G.) on the gradual 

 elevation of a part of the coast of 

 Sicily, 325. 



Geological Society, proceedings of 

 the, 72, 152, 233, 318, 400, 483, 

 551. 



Glaciers, on the structure and motion 

 of, 365. 



Glyceric acid and salts, 198. 



Glycerine, on the action of nitric 

 acid on, 196. 



Glycol, on the action of pentachloride 

 of phosphorus upon, 454. 



Godwin- Austen (R.) on extraneous 

 rock-fragments found in the chalk, 

 165. 



Gold-fields of Victoria, on the geo- 

 logy of the, 400, 483. 



Goniometer, on a substitute for the 

 reflective, 517. 



Gore (G.) on the rotation of metallic 

 tubes and spheres by electricity, 

 519. 



Granites of Ireland, observations on 

 the, 233. 



Graphuluria Wetherelli, on the oc- 

 currence of, 484. 



Gravitation and the conservation of 

 force, on, 81,329. 



Gunpowder, chemical theory of, 489. 



Guthrie (F.) on a new form of spi- 

 rator, 64. 



Hardie (W.) on the telestereoscope, 

 156. 



Haughton (Rev. Prof. S.) on the 

 granites of Ireland, 234. 



Hearder (J. N.) on the difference in 

 the amount of electricity deve- 

 loped by equal surfaces of cylinder 

 and plate electrical machines, 290. 



Heart, on the cause of the rhythmic 

 motion of the, 70 ; influence of in- 

 spiration on the, 543. 



Heat, on capillarity and its relation 

 to latent, 1 ; on the mechanical 

 equivalent of, 406. 



Heddle (Dr.) on the crystalline form 

 of Faroelite, 28; on some new 

 forms of British sphenes, 134. 



Helmholtz (Prof. H.) on the tele- 

 stereoscope, 19. 



Hermann (R.) on the composition of 

 epidotes,vesuviansandgarnets,159. 



Hofmann (Prof.) on triethylamine, 

 70; on thialdine, 140; on the ac- 

 tion of sulphuric acid on anisic and 

 salicylic acids, 143 ; on the phos- 

 phorus-, arsenic- and antimony- 

 bases, 147, 393 ; on a new class of 

 alcohols, 226. 



Hopkins (T.) on the daily fall of the 

 barometer at Toronto, 327. 



Hopkins (W.) on the conductive 

 powers of various substances, 310. 



Hull (E.) on the triassic and permian 

 rocks of the Odenwald, 72. 



Hunt (T. S.) on the part which the 

 alkaline silicates play in the meta- 

 morphism of rocks, 68 ; on eupho- 

 tide and Saussurite, 553. 



Hu.\ley (Prof.) on Cephalaspis and 

 Pteraspis, 319; on a new species 

 of Plesiosaurus, 320 ; on the struc- 

 ture and motion of glaciers, 365. 



Indican, on the preparation and pro- 

 perties of, 29 ; action of acids on, 

 35 ; action of alkahes on, 183. 



Indifulvine, on the preparation and 

 properties of, 39, 117. 



Indigo-blue, on the formation of, 29, 

 117,183. 



Indirubine, on the preparation and 

 properties of, 41. 



Induction apparatus, description of 

 an, 466. 



Iodine, on the separation of, 144 ; on 

 the action of the electric current 

 on aqueous solutions of, 328. 



