578 



INDEX. 



conductors with rise of temperature, and 

 its application to the measure of ordi- 

 nary and furnace temperatures ; also on 

 a simple method of measuring electrical 

 resistances, 443. 

 Sigillarice, 500. 



Silver, on fluoride of (Part II.), 235. 



Skull of the frog, structure and develop- 

 ment of the, 246. 



Solar rays, effect of, on cinchona-bark, 

 20. 



■ spectrum, on the atmospheric lines 



of the, 1. 



Spectroscope, on a registering, 317. 

 Spectrum, Angstrom's observations of, 

 121. 



■ of the aurora, 19. 



of Uranus, note on, 488 ; of Comet I., 



1871, 490. 



Sphero-quartics, on, 495. 



Sphygmograph trace, on the mutual rela- 

 tions of the apex cardiograph and the 

 radial, 318. 



Spratt (T. A. B.) on the undercurrent 

 theory of the ocean, as propounded by 

 recent explorers, 528. 



Stenhouse (J.), contributions to the his- 

 tory of orcin : No. I. Mtro-substitution 

 compounds of the orcins, 410. 



Stone (E. J.) on an approximately decen- 

 nial variation of the temperature at the 

 observatory at the Cape of Good Hope 

 between the years 1841 and 1870, viewed 

 in connexion with the variation of the 

 solar spots, 389. 



Stonyhurst, results of seven years' observa- 

 tions of the dip and horizontal force at, 

 368. 



Strutt (J. W.) on the theory of resonance, 

 106. 



Sun-spot curve, on the form of the, 392. 



Sun-spots, on the connexion of, with plane- 

 tary configuration, 392. 



, resume* of two papers on, 392. 



, variation of, viewed in connexion 



with a decennial variation of tempera- 

 ture, 389. 



Sutherland (Duke of) elected, 97; admitted, 

 222. 



Telescope, observations with the great 

 Melbourne, 18. 



Temperate climate, effect of, on the 

 weight, 305. 



Temperature, bodily, on the effect of ex- 

 ercise on the, 289. 



, decennial variation of, at the Cape 



of Good Hope, viewed in connexion 

 with the variation of the solar spots, 

 389. 



. , on the measurement of, by electrical 



resistance, 443. 



Temperature, as indicated by observations 

 made in the great tunnel through the 

 Alps, 481. 



Thermo-electric action of metals and li- 

 quids, on the, 324. 



Thomas (E.) admitted, 494. 



Thomson (Sir W.), amended rule for 

 working out Sumner's method of finding 

 a ship's place, 524. 



, modification of Wheatstone's bridge 



to find the resistance of a galvanometer- 

 coil from a single deflection of its own 

 needle, 253. 



on a constant form of Daniell's bat- 

 tery, 253. 



on the determination of a ship's 



place from observations of altitude, 259. 



on approach caused by vibration, a 



letter to F. Guthrie, 271. 



Thorpe (T. E) and Young (J.), prelimi- 

 nary notice on the production of the 

 olefmes from paraffin by distillation 

 under pressure, 370. 



Thylacolco carnifex, dentition and mandi- 

 ble of, 95. 



Todhunter (I.) on Jacobi's theorem re- 

 specting the relative equilibrium of a 

 revolving ellipsoid of fluid, and on 

 Ivory's discussion of the theorem, 42. 



Transits of Venus in the years 2001 and 

 2012, 423. 



Triangle, on the problem of the in- and 



circumscribed, 292. 

 Trinitro-orcinic acid, 412. 

 Tropical climate, influence of, on the 



kidneys and skin, 295 ; on the weight 



and strength, 300. 

 Tunnel through the Alps, experiments on 



temperature made in the, 481. 



Uranus, on the spectrum of, 488. 



Vanadates of lead, on the, 451. 



Vanadinite, chemical properties of, 456. 



Varley (C. F.), polarization of metallic 

 surfaces in aqueous solutions, a new 

 method of obtaining electricity from 

 mechanical force, and certain relations 

 between electrostatic induction and the 

 decomposition of water, 243. 



, some experiments on the discharge 



of electricity through rarefied media and 

 the atmosphere, 236. 



Venus, on the circumstances of the tran- 

 sits of, over the sun's disk in the years 

 2004 and 2012, 423. 



Verdon (G. F.) admitted, 94. 



Vibration, on approach caused by, 35, 271. 



Vice-presidents appointed, 145. 



Volume, on the change of, produced by 

 chemical combination, 445. 



