INDEX. 



487 



Melting-point, researches on, 1. 



Mendenhall (T. 0.) on Edison's tasi- 

 meter, 115. 



Metalloids, on the influence of tem- 

 perature upon the spectra of, 

 406. 



Michelson (A. A.) an an air-thermo- 

 meter, 233. 



Mills (Dr. E. J.) on melting-point, 1. 



Monckhoven (M. D. van) on the in- 

 fluence of temperature upon the 

 spectra of metalloids, 406. 



Moseley's theory of steady flow, ob- 

 servations on, 110. 



Naphthalin, on the melting-point of 

 derivatives of, 25. 



Neale (E. V.) on the tails of comets, 

 292. 



Nipher (F. E.) on a property of the 

 lsentropic curve for a perfect gas, 

 233. 



Ocean-tides, on the effect upon the, 

 of a liquid substratum beneath the 

 earth's crust, 213. 



Ohm, on the methods employed for 

 determining the, 258, 329 ; on a 

 thermoscopic method for the deter- 

 mination of the, 407. 



Optics, notes on physiological, 312. 



Penrose (C. B.) on the Thomson 

 Effect, 440. 



Perry (Prof. J.) on the Faure accu- 

 mulator, 41: on a simplified dis- 

 persion-photometer, 45. 



Phenol, on the melting-point of deri- 

 vatives of, 20. 



Photometer, on a simplified disper- 

 sion, 45. 



Phvsical units, on absolute systems 

 of, 81. 



Platinum metals, on some explosive 

 alloys of zinc and the, 152. 



Polarization, on the oscillations of 

 the plane of, produced by the dis- 

 charge of a battery, 79. 



PseudobrooMte, on the crystalline 



form of, 119. 

 Quartz, on some peculiar crystalline 



forms of, 122. 

 Rayleigh (Lord) on the equilibrium 

 of liquid conducting-masses charged 

 with electricity, 184 ; on an instru- 

 ment capable of measming the in- 

 tensity of aerial vibrations, 186 ; 

 on the methods for the determina- 



tion of resistances in absolute mea- 

 sure, 329. 



Refraction, on double, produced by 

 electrical influence in glass and bi- 

 sulphide of carbon, 127. 



Refractive index, on the measure- 

 ment of, 30. 



Resistances, on the methods for the 

 determination of, in absolute mea- 

 sure, 329. 



Sargant (E. B.) on the dimensions of 

 the magnetic pole in electrostatic 

 measure, 395. 



Schmidt (Dr. F.) on the Silurian and 

 Cambrian strata of the Baltic pro- 

 vinces, 150. 



Science and metaphysic, 75. 



Serpentine, notes on, 477. 



Siemens (C. W.) on a new theory of 

 the sun, 480. 



Smith (F. J.) on a new form of mag- 

 netic torsion-balance and magneto- 

 meter, 227. 



Solar energy, on the conservation of, 

 322. 



Spectra of metalloids, on the influ- 

 ence of temperature upon the, 406. 



Spectral images, on the binocular 

 union of, 315. 



Stevens (W. Le Oonte) on physiolo- 

 gical optics, 312. 



Sun, on Dr. Siemens's new theory of 

 the, 400, 478, 480. 



Sundell (A. F.) on absolute systems 

 of physical units, 81. 



Tasimeter, on the influence of time 

 on the change in the resistance of 

 the carbon disk of Edison's, 115. 



Thermometers, on the depression of 

 the zero-point in mercurial, 76; 

 on a simple method for calibrating, 

 294. 



Themiornetry, notes on, 57. 



Thomson (J. J.) on the dimensions of 

 a magnetic pole in the electrostatic 

 system of units, 225. 



Thomson effect, on the, 440. 



Tide, on the disturbance of the ver- 

 tical near the coasts of continents 

 due to the rise and fall of the, 

 416. 



Toluidine, on the melting-point of 

 some derivatives of, 19. 



Toluol, on the melting-points of some 

 derivatives of, 11. 



