604 



INDEX. 



Eolleston (GK) and Robertson (0.) on 

 the aquiferous and oviducal system in 

 the lamelh'branchiate mollusks, 411, 

 446. 



Eoscoe (H. E.) on perchloric acid and 

 its hydrates, 493. 



Rosse (Earl of), further observations 

 upon the nebulae, with practical de- 

 tails relating to the construction of 

 large telescopes, 375. 



Royal Medal awarded to W. Fairbairn, 

 16; Dr. A. Waller, 17; W. B. Car- 

 penter, 464 ; J. J. Sylvester, 467. 



Rumford Medal awarded to J. C. Max- 

 well, 19. 



Russell (W. H. L.) on the calculus of 

 symbols, with applications to the the- 

 ory of differential equations, 84. 



on the calculus of functions, 487. 



on the calculus of symbols (second 

 memoir), 556. 



Sabine (E.) on the lunar-diurnal varia- 

 tion of the magnetic declination ob- 

 tained from the Kew photograms in 

 the years 1858, 1859, and 1860, 73. 



on the secular change in the mag- 

 netic dip in London, between the years 

 1821 and 1860, 144. 



, notices of some conclusions de- 

 rived from the photographic records of 

 the Kew declinometer in the years 

 1858, 1859, 1860, and 1861, 585. 



Salter (S. J. A.) on the structure and 

 growth of the tooth of Echinus, 166. 



Schaub ( ), tide observations in the 

 harbour of Trieste, 49. 



Schrauf (A.), determination of the opti- 

 cal constants of crystallized substances 

 (first and second series), 235. 



Scientific researches, notice of recent, 

 carried on abroad, 45, 53, 233. 



Shaw (W. T.), description of a new opti- 

 cal instrument called the stereotrope, 

 70. 



Sievier (R. W.), readmission of, 489. 



Simms (W.), obituary notice of, xxix. 



Simpson (M.) on the synthesis of succi- 

 nic and pyrotartaric acids, 190. 



on the action of chloride of iodine 



on iodide of ethylene and propylene 

 gas, 590. 



Smith (A.) and Evans (F. J.) on the 

 effect produced on the deviation of the 

 compass by the length and arrange- 

 ment of the compass needles ; and on 

 a new mode of correcting the qua- 

 drantal deviation, 179. 



Smith (E.) on the elimination of urea and 

 urinary water, in their relation to the 



period of the day, season, exertion, 

 food, and other influences acting on 

 the cycle of the year, 192, 214. 



Smith (E.), remarks on the most cor- 

 rect methods of inquiry in reference to 

 pulsation, respiration, urinary pro- 

 ducts, weight of the body, and food, 

 561. 



Smith (H. J. S.) on systems of linear in- 

 determinate equations and congru- 

 ences, 87. 



Smythe (W. J.), determination of the 

 magnetic declination, dip, and force, at 

 the Fiji Islands, in 1860 and!861, 481. 



Sounds and vibrations, production of, by. 

 electrolysis, 491. 



Spectra of gases, on certain, 305. 



Spectrum, solar, atmospheric lines of 

 305. 



Spence (W.), obituary notice of, xxx. 



Spongiadse, anatomy and physiology of 

 (Part IL), 372. 



Spottiswoode (W.) on the contact of 

 curves, 446. 



on the calculus of functions, 447. 



on internal and external division in 



the calculus of symbols, 557. 



Steam, on the surface-condensation of, 44. 



Stenhouse (J.) on some varieties of tan- 

 nin, 401, 445. 



on larixinic acid, a crystaUizable 



volatile principle found in the bark of 

 the larch-tree (Pinus JLarix, Linn.), 

 405, 445. 



Stereotrope, a new optical instrument, 

 description of, 70. 



Stewart (B.) on internal radiation in 

 uniaxal crystals, 193. 



on the great magnetic disturbance 



of August 28 to September 7, 1859, as 

 recorded by photography at the Kew 

 Observatory, 407, 446. 



Stokes (G. GK), note on internal radia- 

 tion, 537. 



on the intensity of the light re- 

 flected from or transmitted through a 

 pile of plates, 545. 



Stomach, structure and function of, in 



the vertebrate class, 357. 

 Strachey (E.) on the distribution of 



aqueous vapour in the upper parts of 



the atmosphere, 182. 

 Striped muscular fibre, development of, 



in man, mammalia, and birds, 513. 

 Succmic acid, on the synthesis of, 190. 

 Sulphide of hydrogen, action of, upon 



clay and lime, 37. 

 Sylvester (J. J.), Eoyal Medal awarded 



to, 467. 

 Symmetric products, method of, on 



