650 



INDEX. 



Saline solutions, on supersaturated : Part 

 III., 342. 



■ , on the behaviour of super- 

 saturated, when exposed to the open 

 air, 41. 



Salmon, on the structure and development 



of the skull of the, 360. 

 Schorlemmer (C), admitted, 1. 



on the normal paraffins, 137- 



Schuster (A.) on the spectrum of nitrogen, 



484. 



Scientific researches in the Mediterranean, 

 414. 



Scott (H.) and Galloway (W.) on the 

 connexion between explosions in col- 

 lieries and weather, 292. 



Shanks (W.), second paper on the nume- 

 rical values of e, log e 2, log 6 3, log e 5, and 

 log e 10; also on the numerical value of 

 M, the modulus of the common system 

 of logarithms, all to 205 decimals, 27. 



, second paper on the numerical 



value of Euler's constant, and on the 

 summation of the harmonic series em- 

 ployed in obtaining such value, 29. 



Sholoor, eclipse of the sun observed at, 

 138. 



Sidgreaves (Rev. W.), magnetic survey of 



* the east of Prance in 1869, 39. 



Silver, on fluoride of: Part III., 70. 



Skew muscles, theory of, 330. 



Smee (A. H.) on the detection of organic 

 and other nitrogenized matter existing 

 in the atmosphere, 442. 



■ on the physical nature of the coa- 

 gulation of the blood, 442. 



Smyth (C. P.), note on a possible ultra- 

 solar spectroscopic phenomenon, 136. 



Stanhope (Earl), letter, and gift of two 

 buses, 27. 



Stenhouse (J.), contributions to the history 

 of orcin: No. II. Chlorine- and bromine- 

 substitution compounds of the orcins, 

 72. 



■ , note on fucusol, 80. 



Stewart (B.), recent researches in solar 

 physics, 82 ; further investigations, 210 ; 

 solar physics (III.), 289 ; note, 290. 



Stokes (Gr. G.) on the law of extraordinary 

 refraction in Iceland spar, 443. 



Stone (E. J.), an experimental determi- 

 nation of the velocity of sound, 34. 



Strange (A.) on a new great theodolite 

 to be used on the Great Trigonometrical 

 Survey of India, with a short note on 

 the performance of a zenith-sector em- 

 ployed on the same work, 317 ; addition 

 to, 372. 



Strutt (Hon. J. W.), preliminary note on 

 the reproduction of diffraction -gratings 

 by means of photography, 414. 



Stuart (J.), investigation of the attraction 



of a galvanic coil on a small magnetic 



mass, 158. 

 Soirees, President's remarks on, 56. 

 Solar activity, further investigations on 



planetary influence upon, 210. 

 ■ physics, on some recent researches 



in, 82. 



, III., researches on, 289. 



Sound, experimental determination of the 



velocity of, 34. 

 Spectroscopic phenomenon, note on a 



possible ultra- solar, 136. 

 Spectrum of Encke's comet, note on, 45. 



of the nebula in Orion, 379. 



of nitrogen, on the, 484. 



Spheroids, note relating to the attraction 



of, 507. 



Spottiswoode (W.) on the contact of sur- 

 faces, 179. 



on the rings produced by crystals 



when submitted to circularly polarized 

 light, 333. 



Stars, on the motion of, towards or from 



the earth, 379, 386. 

 Stenhouse (J. ), Royal Medalawardedto, 56. 

 Sulphuric acid, action of, on codeia, 286. 

 Sun-spot period, on a law regulating the 



time of duration of the, 82. 

 Supersaturated saline solutions, on, 497. 

 Surfaces, on the contact of, 179. 

 Sykes ( W. H.), obituary notice of, xxxiii. 



Telescope, observations made with the 



Great Melbourne, 51. 

 , Royal Society's, observations made 



with, 47, 52. 

 Tennant (J. F.), admitted, 379. 

 Terrestrial magnetism, contributions to, 



443. 



, on a periodic change of the ele- 

 ments of the force of, 21. 



, on a supposed periodicity in 



the elements of, 308. 



Thallium, researches on the atomic weight 

 of, 475. 



Theodolite, on a new, 317, 372. 

 Thomson (J.), considerations on the abrupt 



change at boiling or condensing in re- 

 ference to the continuity of the fluid 



state of matter, 1. 

 Thomson (Wyville) on the Echinidea of 



the 'Porcupine' deep-sea dredging- 



expeditions, 491. 

 Thorpe (T. E.) and Young (J.) on the 



combined action of heat and pressure 



upon the paraffins, 488. 

 Tidy (C. M.) and Woodman (W. £.) on 



ammonia in the urine in health and 



disease, 362. 

 Toclhunter (I.), note relating to the 



attraction of spheroids, 507. 



