﻿I S D E X. 



847 



Optical properties of metals, on the 

 electron theory of the, boo. 



qualities of glass plates, on a 



sensitive method for examining 

 the, 613. 

 Organic substances, on the absorp- 

 tion spectra of, 192. 

 Palladium, on the spectrum of, 154; 



on the X-ray spectrum of, 407. 

 Paraffins, on the boiling-points and 



critical temperatures of the, 599. 

 Partington (J. R.) on the ideal 

 refractivities of gases, 28 ; on a 

 theory of supersaturation, 35. 

 Paulson (Dr. E.) on the spectrum of 



palladium, 154. 

 Pealing (H.) on condensation nuclei 

 produced by the actiou of light on 

 iodine vapour, 41-3. 

 Photoelectric constant and atomic 

 heat, on the, 734. 



effect, on the, 618. 



Photographic action of alpha, beta, 

 and gamma rays, on the, 836. 



films, on tracks of the alpha 



particles in, 420. 

 Plastic bending of metals, on the, 



184. 

 Pollock (Prof. J.) on the nature of 

 the large ions in the air, 514 ; on 

 a new type of ion in the air, 636. 

 Poole (J. H. J.) on the average 

 thorium content of the earth's 

 crust, 433. 

 Pope (Prof. W. J.) on topic para- 

 meters and morphotropic relation- 

 ships, 745. 

 Porter (Prof. A. W.) on the variation 

 of the triple-point of a substance 

 with hydrostatic pressure, 143. 

 Positive rays, on ionization by, 783. 

 Quantum-theory of radiation and 



line spectra, on the, 795. 

 Radiation, on Lorentz's theory of 

 long w r ave, 158 ; on the pressure 

 of, on a receding reflector, 208 ; on 

 the visibility of, 301 ; from an 

 electric source and line spectra, 

 on, 709 : on the quantum-theory 

 of, and line spectra, 795. 



theory, on Planck's, 297, 383. 



Radium A, on the magnetic deflexion 

 of the recoil stream from, 253 ; on 

 the velocity of the alpha particles 

 from, 259. 



emanation, on the condensation 



of, 337. 



Hainan (Prof. C. V.) on motion in a 



periodic field of force, 15. 

 Rankine (A. O.) on the relative 



dimensions of molecules, 552. 

 Rayleigh (Lord) on the mutual 

 influence of resonators exposed to 

 primary plane waves, 209 ; on the 

 widening of spectral lines, 274 ; 

 on ceolian tones, 433. 

 Refractivities of gases, on the ideal. 



28. 

 Resonators, on the mutual influence 

 of, exposed to primary plane waves, 

 209. 

 Rhodium, on the X-ray spectrum of, 



407. 

 Rice (J.) on the form of a liquid 

 drop suspended in another liquid, 

 149. 

 Richardson (Prof. O. W.) on the 



photoelectric effect, 618. 

 Ripples, on, 688. 



Rogers (Prof. F. J.) on the photo- 

 electric effect, 618. 

 Salmi (Prof. R. R.) on the photo- 

 graphic action of alpha, beta, and 

 gamma rays, 836. 

 Sal tm arsh (Miss M. 0.) on the 

 brightness of intermittent illumin- 

 ation, 646. 

 Sanford (F.)on the contact difference 

 of potential of distilled metals, 

 623. 

 Schott (Dr. G. A.) on the motion of 



the Lorentz electron, 49. 

 Schwatt (Dr. I. J.), note on the 

 separation of a fraction into partial 

 fractions, 63 ; note on the expan- 

 sion of a function, 65 ; note on the 

 higher derivative of a function, 

 the variable of which is a function 

 of an independent variable, 823. 

 Shand (Prof. S. J.) on taebvlyte 

 veins in the granite of Parijs, 

 207. 

 Shorter (S. A.) on the shape of 



drops of liquid, 190. 

 Silberstein (Dr. L.) on radiation 

 from an electric source and line 

 spectra, 709. 

 Silver, on the X-ray spectrum of, 



407. 

 Smith (K. K.) on negative therm- 

 ionic currents from tungsten, 

 802. 

 Southwell (R. V.) on the collapse of 

 tubes by external pressure. 67. 



