CONTENTS OF VOL. XLI. SIXTH SERIES. VU 



NUMBER CCXLVL— JUNE. 



Page 



Mr. E. T. Lattey on the Dielectric Constants of Electrolytic 



Solutions 829 



Mr. H. Carrington on the Moduli of Rigidity for Spruce. 



(Plate IX.) 848 



Prof. 0. V. Raman and Prof. Bhabonath Banerji on the 



Colours of Mixed Plates.— Part II 860 



Mr. L. St. C. Broughall on some Dimensions of the Atom . . 872 

 Mr. Wilson Taylor on the Coalescence of Liquid Spheres — 



Molecular Diameters 877 



Mr. T. Smith on the Accuracy of the Internally Focussing 



Telescope in Tacheometry 890 



Mr. A. H. Davis on the Heat Loss by Convection from Wires 

 in a Stream of Air, and its Relation to the Mechanical 



Resistance , . . . . 899 



Dr. C. Davison on the Annual and Diurnal Periodicity of 



Earthquakes in Japan 908 



Mr. A. G. Shenstone on the Effect of an Electric Current on 



the Photo-Electric Effect 916 



Prof. Frank Horton and Miss A. C. Davies on Critical Electron 

 Velocities for the Production of Luminosity in Atmospheric 



Neon 921 



Sir Oliver Lodge on Ether, Light, and Matter 940 



Sir Oliver Lodge on the Einstein Spectral Shift 944 



Notices respecting New Books : — 



Transactions of the Bose Research Institute, Calcutta, 



Vols. I. & II 945 



Mr. L. Southerns's An Outline of Physics 945 



Major P. A. MacMahon's Introduction to Combinatory 



Analysis 946 



Profs. E. T. Whittaker and G. N. Watson's Modern 



Analysis 946 



Miss Ida Freund's The Experimental Basis of Chemistry. 946 

 Proceedings of the Geological Society : — 



Dr. C. G . Knott on Earthquake Waves and the Elasticity 



of the Earth , 947 



Mr. Olaf Holtedahl on the Scandinavian Mountain 



Problem 948 



Dr. E. Greenly on an JEolian Pleistocene Deposit at 



Clevedon (Somerset) 948 



Dr. T. O. Bosworth on the Structure and Stratigraphy of 

 the Tertiary Deposits in North-Western Peru; and 

 on the Geology of the Quaternary Period on a Part of 

 the Pacific Coast of Peru 949, 950 



Index , , f 951 



