548 



INDEX. 



Smith (J.) on some fossil trees, 487. 

 Speech, by mechanical means, 302. 



Sound, theory of, 211; interference of, 

 301. 



Sowerby (J. D. C.) on a phenomenon 

 resembling the mirage, seen in the 

 Regent's Park, 77. 



Spain, on the geology of, 485. 



Spencer (E.) on the diluvium of Finch- 

 ley, 319. 



Spinal cord, structure of the, 138. 



Spring of Torre del Annunziata, 317. 



Star-fish, on the, 208. 



Steam-engine, rotative, new, 369. 



Stevens (Dr.) on the theory of respira- 

 tion, 141. 



Stotherd (Lt.) on a patch of granite in 

 Cavan, 482. 



Sturgeon ( W.), reply to Mr. Watkins,23 1 . 



Succinic acid and its combinations, 238. 



Suffolk, on the crag-formation and or- 

 ganic remains of, 81, 353. 



Sulpho-methylic acid, salts of, 397. 



Sulphuret of zinc and iron, 79. 



Sulphuric acid, English, arsenic in, 235. 



Sun's rays, greater calorific effect of in 

 high than in low latitudes, 182. 



Sykes (Col.) on the Quails and Hemi- 

 podii of India, 229 ; on the measure- 

 ment of heights, 311; on the geogra- 

 phical distribution of birds, 418; on 

 the geographical range of birds, 493. 



Talbot (H. F.) on the nature of light, 

 113, 157. 



Taylor (J.) on a new rotative steam- 

 engine, 369. 



Taylor (Philip), discovery of pyroxylic 

 spirit by, 395, 427. 



Taylor's theorem, on, 188. 



Tellurium, preparation of pure, 539. 



Temperature of vapours, 159. 



Thermometers, measurement of heights 

 by, 311. 



Thrush, Himalayan, 227. 



Tides, on Bernoulli's theory of, 457. 



Tide observations, 136, 208, 212, 293. 



Tin plate, attempts to prevent the cor- 

 rosion of, 391. 



Toad, on a new species of, 328. 



Tobacco, Irish and Virginia, compara- 

 tive value of, 393. 



Torsion balance, its application to inqui- 

 ries in electricity, 304 ; an improve- 

 ment of the, 303. 



Tortoise, 65, 229. 



Trail (Dr.) on the geology of Spain, 485. 



Trimmer (T.) on marine shells found 

 near Shrewsbury, 516. 



Trogon, on several species of, 226. 



Turf, manufacture of paper from, 401. 



Turpentine, hydrate of oil of, 537. 



Undulatory theory, 113, 293. 



Vapours from boiling solutions, tempe- 

 rature of, 159. 



Vesuvius, on the lava of, 316. 



Vibration, on heat and light resulting 

 from, 342. 



Vignoles (Archdeacon) on bog timber, 

 499. 



Volcanic strata, discoveries in, 316. 



Voltaic battery, on the, 411. 



Wardrop (J.) on the influence of the 

 respiratory organs, 212. 



Watkins (F.) on magneto-electric in- 

 duction, 107 ; reply to Mr. Sturgeon, 

 335. 



Weaver (T.) on the gold-workings for- 

 merly conducted in the county of 

 Wicklow, 1. 



West (Dr.) on the geographical position 

 of Cape Farewell, 490 ; on the forma- 

 tion of wood, 498. 



Westwood (J. O.) on the supposed me- 

 tamorphoses in the Crustacea, 210. 



Wheatstone (Prof.) on electrical light, 

 299 ; on the imitation of the human 

 speech, 302. 



Whewell (Rev. W.) on the results of 

 tide observations, 136 ; on a new ane- 

 mometer, 315 ; on the application of 

 physical science to geology, 489. 



White-lead manufactory, experiments 

 on the atmosphere of, 77. 



Williams (D.) on some fossil plants, 487. 



Wolfram, analysis of, 335. 



Wood, on the formation of, 498. 



Woodward (S.) on the crag of Norfolk 

 and Suffolk, 353. 



Woolhouse (W. S. B.) on the enharmo- 

 nic organ, 366. 



X. Y. Z., suggestions respecting the 

 ensuing meeting of the British As- 

 sociation, 118. 



Young (Prof.) on the summation of 

 series, 25 ; on the function X a , 454. 



Zinc, its protection of other metals from 

 corrosion, 391. 



Zinc and iron, sulphuret of, 79. 



Zoological Society, 64, 152, 222, 328, 

 417,519. 



END OF THE SEVENTH VOLUME. 



PRINTED BY RICHARD TAYLOR, RED LION COURT, FLEET STREET. 



