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408 INDEX. 



Jiattlesnakes tamed by music, 198. 



Ritchie, Mr W., his account of an air-pump without artificial valves, 112. 



Royal Society of Edinburgh, account of its proceedings, 178. 



Salts, notice regarding their assumption of different primitive forms, 189. 



Schweigger, Prof., on the anatomy of Corallina opuntia, and other species, 220. 



Sciaena aquila, Mr Neill's account of the, 135. 



Serres, M. J. H., his notice regarding fiery meteors seen during the day, 114. 



Sensitive tree, 200. 



Shells, shower of, 187. 



Shower of fishes in Argyleshire, 187. 



of herrings in Galloway, 187. 



of Shells in Ireland, 187. 



Silica, chemical action of diffused, 392. 



Smith, Christian, M. D., biographical memoir of, 209. 



Dr Andrew, his description of the snakes of Southern Africa, 248. 



Snakes, Dr A. Smith's description of those of Southern Africa, 248. 

 Sodom and Gomorrah, conjectures regarding the physical causes of the de- 

 struction of, 365. 

 Soil, acids and salts found in, 393. 



Solid substances, changes produced in their texture, 189. 

 Sound, transmission of, 390. 

 Space, Dr Olbers on the transparency of, 141. 

 Spicula, Dr Grant on those of two zoophytes from Shetland, 195. 

 Spikenard, essential oil extracted from it^ useful in rheumatism, 396. 

 Sponges, Dr Grant on the structure of calcareous, 166 — of siliceous, 341. 

 Springs, hills formed by, 192. 



Steam-engine, Mr J. White's description of a design for a rotatory, 266. 

 St Hilaire, M. J. G., on female pheasants assuming the male plumage, 302. 

 Sulphate of strontian and sulphate of bary tes confounded, 394. 

 Swiftness of animals, 197. 



Tacitus, contested passage in, 192. _ 



Telescope, Mr Dick's description of a new reflecting, 41. 

 Telluric Bismuth, 394. 



Temperature of the sea at the mouth of the Thames, Mr Frembly 's observa- 

 tions on the, 377- 

 Thermometers, Dr Wildt on the rate of the mercurial and spirit, 327. 

 Tenia, cured by pomegranate bark, 397. 



Tilgate Forest, Mr Mantell on the geological position of the strata of, 262. 

 Titanium, a general ingredient in felspars and serpentines, 192. 

 Tour to the south of France and the Pyrenees, Mr Arnott's, 66. 

 Trachylyte, description of, 362. 



Tumulus, Mr Wood's description of the contents of a, 216. 

 Turner, Dr, on the presence of iodine in the mineral spring of Bonnington, 159. 

 Tytler, Mr J., his remarks on the bite of the Ceylon leech, 375. 



Vegetation at the surface of the globe, M. Poiret's picture of, 117, 251. 

 Vegetables, fossil, M. Ad. Brongniart's observations on some, 282. 

 Vesuvian of Mussa, its analysis, 395. 



Water-melon and Russian cucumber, Dr Howison's account of, 125. 



Wernerian Natural History Society, proceedings of the, 178. 



Whale, account of one killed in the St Lawrence, 198. 



.. fishery at Van Dieman's Land, 396. 



White, Mr James, his description of a design for a rotatory steam-engine, 266. 



Wombat of Flinders, Dr Knox's account of the, 104. 



Wood, W. Esq., his description of the conte nts of a tumulus in Sanday, 216. 



Zoology, notices in, 193, 395. 



P. Neill, Printer. 



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