919 ] 



to VOL. XIX, 



Absorption spectra of uranous 



and uranyl compounds, on the, 



566. 

 iEther, on spontaneous generation of 



electrons in an elastic solid, 1 29 ; 



on the, 181 ; on the sun's motion 



with respect to the, 417 ; on the 



relative motion of the earth and, 



809. 

 Air, on the effect of dust and smoke 



on the ionization of, 657. 

 Alpha rays, on the action of, on 



glass, 192. 

 Alternating- current spark potentials, 



on, 203. 

 Andrew (A. R.) on the geology of 



Nyasaland, 653. 

 Anomalous dispersion by potassium 



vapour, on, 200. 

 Antonoff (G. N.) on radium D and 



its products of transformation, 



825. 

 Atmosphere, on the relation between 



periodic variations of pressure, 



temperature, and wind in the, 26, 



418. 

 Atmospheric electricity, on, 715. 

 Atomic vibration, on the funda- 

 mental constant of, 1. 

 Atoms and molecules, on the nature 



of the forces of attraction between, 



783. 

 Bailey (E. B.) on the cauldron 



subsidence of Glen Coe, 334. 

 Bailey (T. E. G.) on the geology of 



Nyasaland, 653. 

 Banner's formula, kinematical 



analysis of, 21. 

 Bateman (H.) on the velocity of 



propagation of an earthquake 



wave in the interior of the earth, 



576 ; on the reflexion of light at 



a plane mirror, 824. 

 Baylies (R. E.) on saturation specific 



heats with van der Waals's and 



Clausius's characteristics, 407. 



Ber and bei functions, tables of the, 49. 

 Berry (Gr. H.) on the striking point 



of pianoforte strings, 648. 

 Bessel functions, on the asymptotic 



expansions of, 228. 

 Beta rays, on the absorption of, by 



solutions and liquids, 605. 

 Bevan (P. V.) on the absorption 



spectrum of potassium vapour, 



195. 

 Boltzmann's law of probability, on, 



Books, new: — Bouasse's Oours de 

 Physique, pt. vi., 331 ; Results of 

 Observations made at the Coast 

 and Geodetic Survey Magnetic 

 Observatory at Cheltenham, Mary- 

 land, 1905 and 1906, 331; Raffety's 

 Introduction to the Science of 

 Radioactivity, 331 ; The Scientific 

 Papers of Sir William Hug-gins, 

 441 ; Cavalier's Lecons sur les 

 Alliages metalliques, 444; Cramp 

 and Smith's Vector and Vector 

 Diagrams applied to the altern- 

 ating Current Circuit, 445 ; Cool- 

 idge's Elements of Non-Euclidean 

 Geometry, 445 ; Kohlrausch's 

 Lehrbuch der Practischen Physik, 

 446; Clark's Physical Science in 

 the time of Nero, 651 ; Joly's 

 Radioactivity and Geology, 819. 



Borodowski (W. A.) on the absorp- 

 tion of (3 rays from radium by 

 solutions and liquids, 605. 



Burbury (S. H.) on Boltzmann's law 

 of probability, 712. 



Burton (Dr. C. V.) on a gravita- 

 tional problem, 91 ; on the sun's 

 motion with respect to the aether, 

 417. 



Cadmium amalgams and the Weston 

 normal cell, on, 250 



Callendar (Prof. H. L.) on electrical 

 recording thermometers for clinical 

 work, 538. 



