INDEX. 



623 



Rutley (F.) on eruptive rocks from 



New Zealand, 267. 

 Salol, on the velocity of solidification 



of supercooled, 238. 

 Sea-waves connected with? a Japa- 

 nese earthquake, on, 579.- 

 Seismic intensify, on scales of, 44. 



waves, on the velocity of, 53 



Shaw (P. E.) on lecture experiments 

 illustrating syntuny, 283;. on- an 

 electric micrometer, 537. 

 Sheppard (W. F.) on the tabulation 

 of certain frequencv-distributions, 

 393. 

 Skinner (Dr. C. A.) on the potential 

 gradient in the Faraday dark space 

 of vacuum-tubes, 563. 

 Solidification of supercooled liquids, 



on the velocity of, 238. 

 Spark-length of an induction-coil, 



on the, 139. 

 Spectra of hydrogen and the spec- 

 trum of aqueous vapour, on the, 

 338 ; on the arc, of some metals as 

 influenced by an atmosphere of 

 hydrogen, 497. 

 Sphere, on the motion of a, in a vis- 

 cous fluid, 323, 519. 

 Stevenson (J.) on the chemical and 

 geological history of the atmo- 

 sphere, 312, 3.99. 

 Strength of ductile materials under 



combined stress, on the, 69. 

 Stress, on the strength of ductile 



materials under combined, 69. 



Striae, on an application of the 



method of, to the illumination of 



objects under the microscope, 347. 



Sulphur-point, determination of the, 



435. 

 Sun, on the presence of oxvgen in 



the, 343. 

 Sutherland (W.) on the molecular 



constitution of water, 460. 

 Syntony, on lecture experiments 



illustrating, 283. 

 Tayler (J. B.) on the heat of forma- 

 tion of alloys, 37. 

 Temperature, on the effects-of, on the 

 mngnetic properties of iron, 1 ; on 

 the annual march of, 408. 

 Thermo-electric qualities of iron, on 



the effects of twist on the, 223. 

 Thermometer, on the constant- 

 volume gas-,. 251. 



Thermometers, on the comparison 

 of platinum, 421. 



Thermometry, notes on gas-, 433. 



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

 of the ions in the discharge of 

 electricity through gases, 278. 



Torsion-structure in the Alps, on, 261. 



Tory (H. M.) on the comparison of 

 platinum thermometers, 421.. 



Trowbridge (I 'rof. J.) on the pro- 

 duction of the .r-rays by a battery 

 current, 132 ; on the spectra of 

 hydrogen and the spectrum of 

 aqueous vapour, 338. 



Tsuruta (K.) on the effects of twist 

 on the thermo-electric qualities of 

 iron, 223. 



Twist, on the effects of, on the 

 thermo-electric qualities of iron, 

 223. 



Vacuum-tubes, on the potential gra- 

 dient in the dark space of, 563. 



Virial theorem, on a theorem analo- 

 gous to the, 2101 



Viscosity, on the velocity of solidifi- 

 cation and, of supercooled liquids, 

 238. 

 Watch, on the rates of a rocking, 595. 



Water, on the absolute value of the 

 freezing-point of, 253 ; on the 

 molecular constitution of, 460. 

 Wave-fronts, on the evolutions of 



reflected, 148. 

 Waves, on the velocity of seismic, 

 53 ; on approximately simple, 1 35 ; 

 on the photography of sound-, 148 : 

 on progressive long, 213, 308 ; on 

 the general motion of long, 349 ; 

 on the reflexion a.nd transmission 

 by condensers of electric, along 

 wires, 357. 

 Wills (Pt. L.) on the effects of 

 temperature on the magnetic pro- 

 perties of iron and alloys of iron, 1 . 

 Wilson (Dr. H. A.) on the velocity 

 of solidification and \iscosity of 

 supercooled liquids, 238. 

 Wim peris (H. F.) on the elasticity 



of wires, 416. 

 Wires, on the reflexion and trans- 

 mission by condensers of electric 

 waves along, 357 ; on the elasticity 

 of, 416 ; on the propagation of 

 electric oscillations along parallel, 

 (05. 



