[ 951 ] 



INDEX to VOL. XLI. 



Actinium, on the distribution 



of the active deposit of, in elec- 

 tric fields, 357. 

 iEther, light, matter, on, 940. 

 Air, on the thermal effect of a slow 



current of, flowing past heated 



platinum wires, 230. 

 Airey (Dr. J. R.) ou Bessel functions 



of small fractional order and their 



application to problems of elastic 



stability, 200. 

 Albumen films, on colours of, 338. 

 Allen (Dr. H. S.) on the angular 



momentum and related properties 



of the ring electron, 113. 

 Alpha particles, on the collision of, 



with hydrogen atoms, 307, 486. 

 Ammonium nitrate, on the properties 



of plastic crystals of, 1. 

 Analysis, on a method of, suitable 



for differential equations, 584. 

 Anemometers, on the construction 



of hot-wire, 240; on null-deflexion 



constant current, 716. 

 Asymptotic forms of certain hyper- 

 geometric functions, on the, 161. 

 Atmosphere, on problems relating to 



rotating fluid in the, 665. 

 Atoms, on the constitution of, 281 ; 



on some dimensions of, 872. 

 Auren (Dr. T. E.) on the scattering 



and absorption of hard X-rays, 



733. 

 Baly (Prof. E. C. C.) on the physi- 

 cal significance of the least common 



multiple, 711. 

 Banerji (Prof. B.) on the colours of 



mixed plates, 338, 860. 

 Bateman (Dr. H.) on an electro- 

 magnetic theory of radiation, 107. 

 Batho (Prof. C.) on the torsion of 



closed and open tubes, 568. 

 Beams, on the transverse vibrations 



of, 81. 

 Bessel functions of small fractional 



order, on, 200. 

 Beta-ray emission from films of 



elements exposed to Rdntgen rays, 



on the, 120. 

 Bismuth, on the Hall effect in, 



916. 

 Bond (W. N.) on the properties 



of plastic crystals of ammonium 



nitrate, 1. 



Boohs, new : — Berget's Ou en est la-. 

 Meteorologie ?, 682 ; Transactions- 

 of the Bose Research Institute,. 

 945; Southerns's An Outline of 

 • Physics, 945 ; MacMahon's Intro- 

 duction to Combinatory Analysis,. 

 946 ; Whittaker & Watson's 

 Modern Analysis, 946 ; Ereund's 

 The Experimental Basis of Chem- 

 istry, 946. 



Bosanquet (0. IT.) on the intemity 

 of reflexion of X-rays by rock- 

 salt, 309. 



Bosworth (Dr. T. O.) on the Tertiary- 

 deposits of N.W. Pern, 949 ; on 

 the Quaternary period in Peru, 

 950. 



Brachistochrone, on the problem of 

 the, 225. 



Bragg (Prof. W. L.) on the intensity 

 of reflexion of X-rays by rock- 

 salt, 309. 



Briggs (G. K.) on the distribution 

 of the active deposits of radium,, 

 thorium, and actinium in electric 

 fields, 357. 



Broughall (L. St. C.) on the dimen- 

 sions of the atom, 872. 



Campbell (Dr. N.) on the physical 

 significance of the least common 

 multiple, 707. 



Capacity, on the self-, of magneto- 

 windings, 33. 



Carbon monoxide, disappearance of, 

 in the electric discharge, 685. 



Carrington (H.) on the determination 

 of Young's modulus and Poisson's 

 ratio by the method of flexures, 

 206 ; on the moduli of rigidity for 

 spruce, 848. 



Carson (J. R.) on wave propagation 

 over parallel wires, 607. 



Centrifuging, on the separation of 

 mercury into its isotopic forms bv. 

 818. 



Chapman (D. L.) cm the abnor- 

 mality of string electrolytes, 

 799. 



Chemical combination, on the struc- 

 ture of the molecule and. 510. 



Circular currents, on the magnetic 

 held of. 377. 



Coalescence of liquid spheres, on the, 

 877. 



