712 



INDEX. 



Spark-length, on the relation between 



potential-difference and, 617. 

 Specific heat of iron at high tempe- 

 ratures, on the, 430. 

 Spectrum, on the bright line, pro- 

 duced by magnetic rotation, 422. 

 Stanford (R. V.) on a new form of 



pyknometer, 269. 

 Stoney (Dr. G. J.) on an optical 



paradox, 126. 

 String, on the vibration curves 



simultaneously obtained from a 



sound-box and, 149. 

 Surface-film, on the effect of a, in 



total reflexion, 12. 

 Surfaces of discontinuity in a ro- 



tationally elastic medium, on, 603. 

 Temperatures of thermometers under 



black cloth and under white cloth, 



on the, 2S8. 

 Thermoelectric circuit of three 



metals, on the, 631. 

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



of negative corpuscles by the alkali 



metals, 584. 

 Thorium, on the emission of negative 



electricity by the emanation from, 



460. 

 Tide-gauge, on a portable aeromer- 



curial, 253. 

 Total reflexion, on the effect of a 



surface-film in, 12 ; on, at the 



second surface of a plane parallel 



plate, 24. 

 Transfinite numbers, on the, 439. 

 Traube (Prof. J.) on the space 



occupied by atoms, 340. 

 Treacher (LI.) on the phosphatic 



chalk of Taplow, 188. 

 Tungsten-steel, on the magnetization 



and magnetic change of length in, 



548, 642. 

 Uranium, on the radioactive proper- 

 ties of, 45. 



Vacua, on De war's method of pro- 

 ducing high, 497. 



Vacuum-tube, on the effect of a 

 transverse magnetic field on the 

 discharge of electricity through a, 

 67. 



Vibration curves simultaneously 

 obtained from a monochord sound- 

 box and string, on the, 149. 



Vibrations, on the lateral, of bars, 

 113 ; on electrical, between con- 

 focal elliptic cylinders, 225 ; on 

 the momentum and pressure of 

 gaseous, 364. 



Virial equation, on the, 33, 364. 



Voltage ratios of an inverted rotary 

 converter, on the, 160. 



Walford (E. A.) on new oolitic strata 

 in Oxfordshire, 706. 



Water, osmotic experiments on 

 mixtures of alcohol and, 1 ; on the 

 mutual solubilities of diethylamine 

 and, 397. 



Watson (Dr. W.) on the determina- 

 tion of the moment of inertia of 

 magnets, 130. 



Wehnelt (Prof. A.) on the discharge 

 of negative ions by glowing 

 metallic oxides, 80. 



W 7 hite (H. J. O.) on the phosphatic 

 chalk of Taplow, 188. 



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

 conductivity of flames, 476. 



Wood (Prof. E. W.) on the magneto- 

 optics of sodium vapour and the 

 rotatory dispersion formula, 408 ; 

 on the scintillations produced by 

 radium, 427 ; on the fluores- 

 cence of sodium vapour and the 

 resonance radiation of electrons, 

 513. 



Worthington (Prof. A. M.) on a 

 fundamental experiment in elec- 

 tricitv, 380. 



END OF THE TENTH VOLUME. 



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