500 



INDEX. 



Solar spectrum, on the deficient rays 



in the, 393. 

 spots, 397. 



Solly (S.) on the connexion of the 

 spinal cord with the cerebellum, 393. 



Sound, theory of, 342; on the velocity 

 of in air, and that from theory, 458. 



South (Sir J.) on the atmosphere of 

 Mars, 71, 158. 



Spectrum, solar, on the deficient rays 

 in the, 393. 



Special general meetings of the Royal 

 Society : — relative to a resolution 

 withholding the thanks of the So- 

 ciety from Dr. Granville, 415 ;to con- 

 sider of an address to H. R. H. the 

 President on the happy recovery of 

 his sight, 417. 



Sphinx Ligustri, on the nervous sy- 

 stem of the, 129, 292. 



Spikenard (Nardus Indica), 303. 



Spinal cord, on the, 283, 331 ; on its 

 connexion with the cerebellum, 393. 



Springs, thermal, at Bath, 254, 258. 



, hot, temperatures and geological 



relations of, 382. 



Star-fish, of the genus Comatula, on 

 the, 339. 



Stark (Dr.) on the influence of colour 

 on heat and odours, 208. 



Statutes of the Royal Society, altera- 

 tions in, 86. 



Steam, on the production of, 123, 



Steam-vessels, on the laws which go- 

 vern the motion of, 285. 



, iron, magnetic experiments 



on, 378. 



Stevens (Dr.) on the theory of respi- 

 ration, 334. 



Stickleback, capillary vessels of the, 

 45. 



Stockier (F. de B. G.), notice of, 232. 

 Stromeyer (Prof.) on a remarkable 



mass of meteoric iron, 203. 

 Strutt (W.), notice of, 84. 

 Struve (Prof.), the Royal medal 



awarded to, 221. 

 Sturgeon (W.) on magnetic electrical 



machines and voltaic batteries, 412. 

 Subarseniate of soda, of barytes, and 



of lead, experiments on, 201. 

 Subphosphate of lime, composition of, 



201. 



Suction of the common leech, on the, 

 198. 



Sulphates, on the constitution of the, 

 454. 



Sun-dials, on the hour lines of the an- 

 cient Greeks and Romans, 18. 

 Survey of the river Thames, 30. 

 Suspension bridges, 51. 

 Sussex (Duke of), address at anniver- 

 sary meeting, Nov. 30, 1831, 78. 

 — — , address at anniversary meeting, 



Nov. 30, 1 832, 140. 

 , address at anniversary, Nov. 30, 



1833, 215. 

 , letter relative to his absence on 



the anniversary, Dec. 1, 1834, 302. 

 , address at the anniversary 



meeting, Nov. 30, 1 836, 429. 

 , letter to the Fellows of the Royal 



Society, 361. 

 , address on delivering the Royal 



medal awarded to Sir John Her- 



schel, 443. 

 , letters from Mr. Children to the 



Royal Society relative to His Royal 



Highness, 300, 324. 

 , the congratulation of the Royal 



Society on the happy recovery of his 



sight, 417. 

 Sweden, on the gradual rising of the 



land in, 313. 

 Sykes (Lt.-Col.) on the atmospheric 



tides and meteorology of Dukhun, 



296. 



Talbot (H. F.) on a new property of 

 the arcs of the equilateral hyper- 

 bola, 258. 



on the arcs of certain parabolic 



curves, 287. 



experiments on light, 298. 



on the integral calculus, 380, 417. 



on the optical phenomena of cer- 

 tain crystals, 389, 455. 



Tatem (J. G.), journal of the weather 

 at High Wycombe, 131. 



Telescope, application of a concave 

 achromatic lens to the wired mi- 

 crometer of a, 268. 



, on the negative achromatic lens, 



284. 



■ ■■ -, Barlow's fluid-lens, 245. 



, Cassegrainian and Gregorian, 



350. 



, new, of the Royal Observatory, 



270, 326. 



, eye-pieces of, 89. 



, fluid refracting, 13, 140, 245. 



Temperature, apparatus for regulating, 



67. 



of the air and the sea, 317. 



