INDEX. 527 



N. 



Nitric Acid Preparation and Purification, Properties of Anhydrous Acid, Hydrates of, Specific Resistances, Conductivities 

 and Temperature Coefficients (VELBY and MANLEY), 3C5. 



O. 



Occlusion of Hydrogen and Oxygen by Palladium Nature of, Heat of, Effects of Pressure (MoND, RAMSAY, and SHIELDS), 



105. 

 Ocean, Free Oscillations of the (Houori), 139. 



P. 



Palladium, Occlusion of Hydrogen and Oxygen by; Density of (MOND, RAMSAY, and SHIELDS), 105. 



PEARSON (KARL) and FILON (L. N. G.). Mathematical Contributions to the Theory of Evolution. IV. On the Probable 



Errors of Frequency Constants and on the Influence of Random Selection on Variation and Correlation, 229. 

 PETAVEL (J. E.). On the Heat Dissipated by a Platinum Surface at Hi<*h Temperatures, 501. 

 Photometry, Photographic Method in (BuBKE), 87. 



Platinum, Emissivity of; Specific Resistance of, at Melting- point (PETAVEL), 501. 

 Probability Theory of Errors in Frequency (PEARSON and FILON), 229. 



R. 



% 



Races, Local, Influence of Random Selection on Differentiation of (PEARSON and FILON), 221. 



RAMSAY (WILLIAM), MOND (Luowio), and SHIELDS (JOHN). On the Occlusion of Hydrogen and Oxygen by Palladium, 

 105. 



S. 



SHIELDS '(JOHN), MOND (LuDwm), and RAMSAY (WILLIAM). On the Occlusion of Hydrogen and Oxygen ny Palladium 



105. 

 Stars, Photographic Spectra of Classification of Distribution (McCLEAN), 127. 



T. 



Thermal Conductivities of Solids, Liquids, and Mixtures. Variation with Temperature (LEES), 399. 

 Thermal Expansion Coefficients for Platinum, Iridium, Aluminium, and Small Crystals (TuTTON), 313. 

 Tides, Dynamical Theory; LAPLACE'S Theory (HOUGH), 139. 

 TUTTON (A. E.). A Compensated Interference Dilatomcter, 313. 



V. 

 VELEY (V. IT.) and MANLEY (J. J.). The Electric Conductivity of Nitric Acid, 365. 



