INDEX. 



493 



Singapore, magnetic observations at, 

 382. 



Skin, on the special function of the, 

 445. 



, a newly discovered parasitic ani- 

 malcule of the, 455. 



Smee (A.) on the ferrosesquicyanuret 

 of potassium, 239. 



— on the structure of normal and 



adventitious bone, 198. 



on the reduction of metals from 



solutions of their salts by the voltaic 

 circuit, 447. 



Smith (Sir W. Sydney), notice of the 

 late, 264. 



Smyth (Capt.), his retirement from the 

 office of foreign secretary, 172. 



Soane (Sir John), notice of the late, 16. 



Sodium, electro-chemical equivalents 

 of, 232. 



Solar spectrum, visibility of certain 

 rays beyond the ordinary red rays 

 of the, 146. 



, chemical action of the rays of 



the, on preparations of silver, &c., 

 205 ; chemical analysis of the, 207 ; 

 of the whitening power of the se- 

 veral rays under the influence of 

 hydriodic salts, 208 ; analysis of the 

 chemical rays by absorbent media, 

 209 ; on the distribution of the ca- 

 lorific rays in the, 209. 



— — , theory of the dark bands formed 

 in, 211. 



, action of the rays of the, on ve- 

 getable colours, 208, 393, 397. 



Somerville (Mrs.), a bust of, by Chan- 

 trey, in the possession of the Royal 

 Society, 402. 



Southampton, on the tides at, 445. 



Spaniolitmine, 234. 



Spark, electric, 51. 



Spectrum, solar, on the visibility of 

 rays beyond the ordinary red rays 

 of, 146. 



— calorific, account of a process 

 for rendering it visible, 209. 



— — ; prismatic, extension of the visi- 

 ble, 207; phenomena of dark bands 

 crossing the, 211. 



Speculum of a reflecting telescope, on 

 the, 238. 



Spermatozoa observed within the mam- 



miferous ovum, 432. 

 Spiral, logarithmic, the form affected 



by the opercula of turbinated shells 



and by these shells, 80, 



Spleen, on the structure and functions 

 of the, 164. 



, on the general and minute struc- 

 ture of the, 456. 



Sponge {Spongilla fluviatilis), the ac- 

 tion of light upon the colour of, 72. 



Springs, intermitting, on, 43. 



Stark (Dr. J.) on the nerves, 434. 



on the supposed development of 



the animal tissues from cells, 468. 



Steam, solubihty of silica by, 232. 



Steam-wave, on the, 372. 



Steel, strength of pillars of, 228. 



Steneosaurus, remains of, discovered 

 in Tilgate Forest, 290. 



Stereoscope, an instrument for the in- 

 vestigation of the phenomena of bi- 

 nocular vision, 77. 



Strength of pillars of cast-iron^ &c., 

 227. 



Sturm (M.), a Copley medal awarded 

 to, 256. 



Sugar, not constituted of carbon and 

 water only, 150. 



Sulivan (Lieut, B. J.), observations of 

 the dip and intensity, made at sea 

 between Falmouth and the Falkland 

 Islands, 212. 



Sulphur, inductive capacity of, 41,100. 



Sulphuric acid, on its relative attrac- 

 tions for water, 81. 



, on the manufacture of, 81. 



Sun's atmosphere, indications of an 

 absorbent action in the, 208. 



Suppuration, on, 67. 



Sussex (Dukeof),his Royal Highness's 

 address read at Anniversary Meet- 

 ing, Nov. 30, 1837, 5. 



— — , address on the occasion of Her 

 Majesty inscribing her name in the 

 Charter Book as Patroness of the 

 Royal Society, 6, 69, 88. 



, address read at Anniversary 



Meeting, Nov. 30, 1838, on his re- 

 tirement from the office of Presi- 

 dent, 86. 



— — , the cordial thanks of the Society 

 presented to, 99. 



, portrait of, in the possession of 



the Royal Society. 



, address of condolence to Her 



Majesty on the demise of, 254. 



Swan (J.), physiological inferences de- 

 rived from human and comparative 

 anatomy respecting the origin of the 

 nerves, &c. 472. 



Sykes (Lt,-Col.), remarks on the me- 



