548 



INDEX. 



Conroy (Sir J.), some experiments on 

 metallic reflexion : No. II, 486. 



Co-ordinates of a cubic curve in space, 

 on the forty-eight (Spottiswoode), 301. 



Council, election of, 101. 



Critical point, on the (Ramsay), 194. 



Crookes (W.) on heat conduction in 

 highly rarefied air, 239. 



on ■ the Tiscosity of gases at high 



exhaustions, 446. 



note by Professor Stokes on the re- 

 duction of his experiments on the de- 

 crement of the arc of vibration of a 

 mica plate oscillating within a bulb 

 containing more or less rarefied gas, 

 458. 



Cubic curve, on the forty-eight co-ordi- 

 nates of a, in space (Spottiswoode), 

 301. 



Darwin (G. H.) on the tidal friction of 

 a planet attended by several satellites, 

 and on the evolution of the solar sys- 

 tem, 322. 



Definite integrals, on certain : No. YIII 



(Russell), 330. 

 Diastase of koji, on the (Atkinson), 523. 

 Dielectric capacity of liquids (Hopkin- 



son), 347. 



Diffusion of liquids, influence of voltaic 

 currents on the (Gore), 250. 



Dinosaur, Polacanthus Foxii, a large 

 undescribed, from the Wealden for- 

 mation in the Isle of Wight (Hulke) . 

 336. 



Dixey (F. A.) on the ossification of the 

 terminal phalanges of the digits, 63. 



Donation fund, account of grants from 

 the, in 1879-80, 110. 



Earthquakes of July, 1880, at Manila, 

 notes on the (PauH), 460. 



Electric currents caused by liquid diffu- 

 sion and osmose (Gore), 296. 



Electric distribution as manifested by 

 that of the radicles of electrolytes, ex- 

 perimental researches into (Tribe), 

 320. 



Electric osmose, experiments on (Gore), 

 253. 



Electrical resistance of thin liquid films, 

 on the (Remold and Rucker) , 524. 



Electro-magnetic induction, molecular 

 (Hughes), 525. 



Electroscope, phenomena of the capil- 

 lary (Gore), 295. 



Electrostatic capacity of glass, the (Hop- 

 kinson), 148. 



Ellis (A. J.) on an improved bimodular 

 method of computing natural and 

 tabular logarithms and anti-logarithms 



to twelve or sixteen places with very 

 brief tables, 381. 



Ellis (A. J.) on the influence of tem- 

 perature on the musical pitch of 

 harmonium reeds, 413. 



on the potential radix as a means 



of calculating logarithms to any re- 

 quired number of decimal places, with 

 a summary of all preceding methods 

 chronologically arranged, 398. 



Errors of adjustment, on a method of 

 destroying the effects of slight, in ex- 

 periments of changes of refrangibility 

 due to relative motions in the line of 

 sight (Stone), 381. 



on a simple mode of elimi- 

 nating, in delicate observations of 

 compared spectra (Stokes), 470. 



Essential oils, an examination of, re- 

 searches on the action of organic sub- 

 stances on the ultra-violet rays of the 

 spectrum : Part III (Hartley and 

 Huntington), 1. 



Evolution of the solar system, on the 

 (Darwin), 322. 



Ewing (J. A.) on a new seismograph 

 440. 



Eellows deceased, 73. 

 elected, 74. 



Festing (Lieut.-Col.) and W. de W. 

 Abney on the influence of the mole- 

 cular grouping in organic bodies on 

 their absorption in the infra-red region 

 of the spectrum, 416. 



Financial statement, 103-105. 



Fossil wood from the Mackenzie River, 

 note on the microscopic examination 

 of some (Schroter), 147. 



Friction of water against solid surfaces 

 of different degrees of roughness, on 

 the (Unwin) , '54. 



Fund, donation, account of grants from 

 the, 1879-80, 110. 



Government (4,000/.), account of 



appropriations from the, 111. 



Fungus of ringworm, on the (Thin), 

 501. 



Gamgee (Dr.), note on a communica- 

 tion made to the Royal Society by 

 Professor Roscoe, on the absence of 

 potassium in protagon prepared by 

 (Thudichum), 282. 



Ganglion cells, note on the occurrence 

 of, in the anterior roots of the cat's 

 spinal nerves (Schafer) , 348. 



Gas, note on the reduction of Mr. 

 Crookes' s experiments on the decre- 

 ment of the arc of vibration of a mica 

 plate oscillating within a bulb con- 

 taining more or less rarefied, 458. 



