INDEX. 



565 



dian arcs ; and speculations on the con- 

 stitution of the earth's crust, 18, 253. 



Prestwich (J.) on some further evidence 

 bearing on the excavation of the valley 

 of the Somme by river-action, as ex- 

 hibited in a section at Drucat near 

 Abbeville, 135. 



Purpureine, 87, 148. 



Purpurine, action of bromine on, 152. 



Quadratic forms containing more than 

 three indeterrainates, on the orders and 

 genera of, 199. 



forms, on complex binary, 278. 



Eadiant heat, researches on, (fifth me- 

 moir) 160. 



Railway trains, experiments on the vibra- 

 tions occasioned by, in a tunnel, 65. 



Pankine (W. J. M.) on plane water- 

 lines, 15. 



Retina of amphibia and reptiles, contri- 

 bution to the minute anatomy of, 138. 



Robinson (Rev. T. R.), description of a 

 new mercui'ial gasometer and air-pump, 

 321. 



Rosandine, methylic, ethyUc, and amylic 

 derivatives of, 13. 



Roscoe (H. E.) on a method of meteoro- 

 logical registration of the chemical ac- 

 tion of total daylight, 555. 



Royal Medal awarded to Rev. M. J. 

 Berkeley, 35 ; to J. P. G-assiot, 36 ; 

 W. De la Rue, 510; J. L. Clarke, 512. 



Ruhia munjista, the East-Indian madder, 

 or munjeet of commerce, examination 

 of, 86, i45. 



Rumford Medal awarded to J. Tyndall, 

 515. 



Riimker (C. L. C), obituary notice of, 

 xvi. 



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

 symbols (fourth memoir). With ap- 

 plications to the theoi'y of non-linear 

 ditierential equations, 126, 423. 



(fifth memoir) , with appUcations 



to linear partial differential equations 

 and the calculus of functions, 227, 432. 



Russian are, remarks on, 24. 



Sabine (G-en. E.), anniversary address, 

 497. 



, a comparison of the most notable 



disturbances of the magnetic dechna- 

 tion in 1858 and 1859 at Kew and 

 Nertschinsk, preceded by a brief retro- 

 spective view of the progress of the in- 

 A-^estigation into the laws and causes of 

 the magnetic disturbances, 247. 



, results of hourly observations of 



the magnetic declination made by Sir 

 Francis Leopold M'Clintock,R.N., and 

 the officers of the yacht ' Eox,' at Port 



Kennedy, in the Arctic Sea, in the 

 winter of 1858-59 ; and a comparison 

 of these results with those obtained by 

 Captain Maguire, R.N., and the officers 

 of H.M.S. ' Plover,' in 1852, 1853, and 

 1854, at Point Barrow, 84. 



Schorlemmer (C), on the action of chlo- 

 rine upon methyl, 225. 



Scientific rehef fund, fii'st report of, 495. 



Sea- water, composition of, in difierent parts 

 of the ocean, 493. 



Sedgwick (Rev. A.), Coplev Medal awarded 

 to, 31. 



SHveira (Senhor da), a table of the mean 

 declination of the magnet in each de- 

 cade from January 1858 to December 

 1863, derived from the observations 

 made at the magnetic observatory at 

 Lisbon ; showing the annual variation 

 or semiannual inequality to which that 

 element is subject, 347. 



Simpson (M.) on the acids derivable from 

 the cyanides of the oxy-radicals of the 

 di- and tri-atomic alcohols, 44. 



on the action of chloride of iodine 



upon organic bodies, 540. 



Skew surfaces, otherwise scrolls, second 



memoir on, 244. 

 "Skogman (Capt. C), completion of the 

 preliminary survey of Spitzbergen, un- 

 dertaken by the Swedish Government 

 with a view of ascertaining the practi- 

 cability of the measurement of an arc 

 of the meridian, 551. 



Smee (A. H.) on organic substances arti- 

 ficially formed from albumen, 350. 



Smith (E.), inquiries into the national 

 dietary, 298. 



Smith (H. J. S.) on complex binary qua- 

 dratic forms, 278. 



on the criterion of resolubility in 



integral numbers of the indeterminate 

 eq\\at\onf^ax~-\-a'x'--\-a"x"'^-\-2bx'x'^ 

 -\-Wxx"-\-2h"x'x^0, 110. 



on the orders and genera of qua- 

 dratic forms containing more than three 

 indeterminates, 199.- 



Somme, valley of the, on the excavation 

 of, by river-action, 135. 



Sorby (H. C.) on the microscopical struc- 

 ture of meteorites, 333. 



South (Sfr J. ), experiments, made at Wat- 

 ford, on the vibrations occasioned by 

 railway trains passing through a tun- 

 nel, 65. 



Spectra of ignited gases and vapours, on, 

 153. 



of some of the chemical elements, 43. 



of some of the fixed stars, 242. 



Spectrum analysis, description of a train 



of eleven sulphide-of-carbon prisms 



aiTanged for, 183. 

 Spitzbergen, preliminary survey by the 



