512 



INDEX. 



Shrubsole (0. A.) on the valley- 

 gravels about Beading, 281. 



Siemens (W. v.) on the general 

 system of winds on the earth, 497. 



Smith (F. J.) on eliminating the 

 effects of latency of electromag- 

 netic styli in chronographic mea- 

 surements, 160. 



Smith (S.W. J.) on the diurnal vari- 

 ation of the magnet at Kew, 140. 



Sound, on the velocity of, at very 

 low temperatures, 507. 



Spectra, on relations between the 

 lines of various, 33 ; on some 

 gaseous, 48; of the alkalies, on 

 the, 203. 



Spencer (Prof. J. W.) on the origin 

 of the basins of the great lakes of 

 America, 193. 



Spherulites, on composite, in obsi- 

 dian, 123. 



Staub (G.) on the disengagement of 

 light and heat in electrical dis- 

 charges, 283. 



Stefan (Prof. J.) on the theory of 

 the oscillatory discharge, 282. 



Stoltetow (A.) on actinoelectrical 

 investigations, 436. 



Strips, on the deformation of twisted, 

 476.. 



Sumpner (Dr. W. E.) on galvano- 

 meters, 58. 



Surface forces, on the theory of, 285, 

 456. 



Sutherland (W.) on a new periodic 

 property of the elements, 318. 



Thomson (Prof. J. J.) on the velocity 

 of transmission of electric disturb- 

 ances and their application to the 

 theory of the striated discharge 

 through gases, 129. 



Threlfall (Prof. R.) on the elastic 

 constants of quartz threads, 99. 



Tomlinson (C.) on the action of oils 

 on the motions of camphor on the 

 surface of water, 508. 



Tomlinson (H.) on the effect of 

 change of temperature on the Vil- 

 lari critical point of iron, 145. 



Tropics, on atmospheric electricity 

 in the, 284. 



Trowbridge (J.) on electrical oscil- 

 lations in air, 323 ; on the motion 

 of atoms in electric discharges, 

 480. 



Ulrich (Prof. G. H. F.) on the nickel- 

 iron alloy " Awaruite," 200. 



Ussher (W. A. E.) on the Devonian 

 rocks of S. Devon, 195. 



Vapours, on fluorescent, 440. 



Very (F. W.) on the cheapest form 

 of light, 260. 



Vibrations, on stationary luminous, 

 438. 



Villari critical point of iron, on the 

 effect of change of temperature on 

 the, 145. 



Volta-electromotive force, on the 

 greater influence of first quanti- 

 ties of electrolytes on, 483. 



Wangerin (A.) on the shape of New- 

 ton's rings, 439. 



Wanklyn (J. A.) notes on hydrogen 

 gas, 431. 



Water, on the expansion of, 400 ; on 

 the action of oils on the motions 

 of camphor on the surface of, 

 508. 



surfaces, clean and contami- 

 nated, on the tension of, 386. 



Waves, on the observation of elec- 

 trodynamic, 363. 



Whitaker (W.) on a deep channel 

 of drift in the valley of the Cam, 

 121. 



Wiechert (E.) on electrodynamic 

 waves, 363. 



Wiedemann (Prof. F.) on fluorescent 

 vapours, 440. 



Wiener (O.) on stationary luminous 

 vibrations, 438. 



Winds, on the general system of, on 

 the earth, 497. 



Worth (R. N.) on the existence of 

 Triassic rocks off the coast of 

 Cornwall, 199. 



Young (Prof. S.) on the relation 

 between the boiling-points, mole- 

 cular volumes, and chemical cha- 

 racters of liquids, 423. 



Zinc, on the spectrum of, 33. 



END OF THE THIRTIETH VOLUME. 



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