INDEX. 



54-7 



Daguerreotype, and its application to 

 taking portraits from the life, 217. 

 Dumas (M.) on the law of substitutions, 

 and the theory of chemical types, 179. 



Dysodil, 479. 



Effluent steam, on the electricity of, 452. 



Egypt, Palestine, the southern limit of the 

 vine, 97. 



Elseoliths: elseolith and nepheline, 105; 

 analyses of various, 106 ; brown, from 

 Brevig, in Norway, 106; green, from 

 Fredricksvarn, in Norway, 106 ; brown, 

 from same locality, 108 ; white, from 

 the Ilmen mountains in Siberia, 108 ; 

 from Katzenbuchel in the Odenwalde, 

 111; hydrochloric and sulphuric acids 

 in, 113; chemical formula for the, 114; 

 colour of the, 119. 



Electricity : researches in ; seventeenth 

 series, 145 ; chemical and contact theo- 

 ries of voltaic, 237 ; on the odour ac- 

 companying, 293 ; of a jet of steam 

 issuing from a boiler, 370 ; of high- 

 pressure steam, 375 ; of steam, 449, 

 457 ; of effluent steam, 452. 



Electro-chemical theory, 183 ; equiva- 

 lents, 298. 



Electrolysis of secondary compounds, on 

 the, 297, 349. 



Elephant, urine of the, 156. 



Elevation, phaenomena of, on certain geo- 

 logical, 154. 



Elimination, 379. 



Embryology, researches in ; third series, 

 385. 



Faraday (Prof.), letter to, from Dr. R. 

 Hare, on certain theoretical opinions, 

 44 ; answer to Dr. Hare, 54 ; researches 

 in Electricity, seventeenth series : on 

 the source of power-in the voltaic pile, 

 145 ; on magneto-electric induction, 

 281, 356. 



Fermentation, observations on Mr. Smith's 

 experiments on, 39. 



Ferrocyanateofpotassa, red, table of pre- 

 cipitates with the, 201. 



Ferrosesquicyanuret of potassium, on the, 

 193, 381. 



Focal properties of surfaces of the second 

 order, on the, 433. 



Forbes (James D.) on the optical cha- 

 racters of Greenockite (sulphuret of 

 cadmium), 8. 



Formations: coal, 512; Wealden and 

 Portland, 513; chalk, 513; supercre- 

 taceous, 515. 



Formula, chemical, for the elaeoliths, 114. 



Fossil trees found on the Manchester and 

 Bolton railway, on the, 541. 



Foville (Dr.) on the anatomy of the brain, 

 14. 



2N 



Francis (William) on crystallized nickel 

 ore, 335. 



and Theodore Scheerer, 



on some combinations of arsenic with 

 cobalt, 331. 



French chemists, on the potatoe spirit oil 

 of the, 86. 



Gassiott (John P.), letter to, by Andrew 

 Crosse, Esq., on the tension spark from 

 the voltaic battery, 215. 



Gay Lussac (M.), letter to, by Michael 

 Faraday, on magneto-electric induction, 

 281, 356. 



Geological Society: proceedings of the, 

 149, 226, 303; annual general meeting 

 of the, 303, 387 ; anniversary address 

 of the, 307, 508; notice of deceased 

 members of the, 526. 



Geology : on the geology around the 

 shores of Waferford Haven, 68 ; on the 

 great greywacke system of West So- 

 merset, Devon, and Cornwall, 7 1 ; fos- 

 sil remains of a mammal, a bird, and a 

 serpent, from the London clay, 149; 

 on certain geological phsenomena of 

 elevation, and their probable connection 

 with the existence of volcanos, 154; 

 carboniferous slate of Cork, 173; Mona- 

 voullagh conglomerate, 168 ; on the 

 carboniferous and transition rocks of 

 Bohemia, 226 ; on the Paramoudra 

 from the chalk near Norwich, 230 ; on 

 the older stratified rocks near Killar- 

 ney and Dublin, 270; positive geology, 

 508. 



Gerhardt (M. C.) on hellenin, 236. 



Glasgow, minerals found in the neighbour- 

 hood of, 401 ; British Association at, 

 address of general secretaries of the, 

 441,482. 



Glenarm, analysis of gmelinite from, 105. 



Gmelin (Prof. C. G.), results of analysis 

 of poonalite and thulite, 1 03. 



Gmelinite, analyses of, from Glenarm, 105. 



Greenockite, on theoptical characters of, 8. 



Greywacke system in the group of West 

 Somerset, Devon and Cornwall, on the, 

 71. 



Griffith (R.) on Mr. Weaver's paper re- 

 lative to the mineral structure of the 

 South of Ireland, 161. 



Guibourt (M.), analysis of the ashes of 

 the Salsola tragus, 77. 



Gulliver (George) on the blood corpuscles, 

 or red particles, of the mammiferous 

 animals, 139; on certain peculiarities 

 of form in the blood corpuscles of the 

 mammiferous animals, 325 ; of certain 

 species of the genus Cervus, 327. 



Gunn (Rev. John) on the Paramoudra. 

 from the chalk near Norwich, 230. 



