Physics. 



Richardson, O. W. The Electron 

 Theory of Matter . 2nd edn . Demy 

 8vo. Pp. 631. 1916. Cambridge 

 University Press. 21s. 



Thomson , Sir J . J . The Corpuscular 

 Theory of Matter . 2nd imp . Demy 

 8vo. >p. 178. 1907. Constable. 

 75. 6rf. 



Electricity and Matter . Cr . Svo . 



Pp.170. 1912. Constable. 9s. 



iii. RELATIVITY. 



Carr, H. W. The General Principle 

 of Relativity in its Philosophical 

 and Historial Aspect. Cr. Svo. 

 Pp.175. 1920. Maemillan.7s.6d. 



Conway , A . W . Relativity . Demy 

 Svo. Pp.43. 191o. Bell. 2s. 



Cunningham, E. Relativity, the 



Electron Theory and Gravitation. 



2nd edition. Demy Svo. Pp. 154. 



1921. Longmans. 10s. Qd. 

 The Principle of Relativity. 



Demy Svo. Pp. 235. 1914. 



Cambridge University Press. 12s. 



Eddington , A . S . Space , Time , and 

 Gravitation. An Outline of the 

 General Relativity Theory. 2nd 

 imp. Demy Svo. Pp.226. (1920) 

 19-1 . Cambridge University Press. 

 15s. 



Report on the Relativity Theory 



of Gravitation. 2nd edn. Demy 

 Svo. 1920. Paper covers, 6s. 

 Cloth, 8s. Physical Society of 

 London (Fleetway Press). 



Einstein , A . Relativity : The Special 

 and the General Theory . A Popular 

 Exposition. Translated by R. W. 

 Lawson. Cr.Svo. Pp. 151. 1920. 

 Methuen. 5s. 



Freundlich, E. The Foundations of 

 Einstein's Theory of Gravitation. 

 Authorised English Translation by 

 H. L. Brose. Preface by A. 

 Einstein. Introduction by H. H. 

 Turner. Pp. 77. 1920. Cam- 

 bridge University Press. 5s. 



Harrow , B . From Newton to 

 Einstein . Changing Conceptions 

 of the Universe. 18mo. Pp. 95. 

 sewed. 1920. Constable. 2s. 6d. 



Robb, A. A. A Theory of Time and 



Space. Roy. Svo. Pp.380. 1914. 



Cambridge University Press. 15s. 

 The Absolute Relations of Time 



and Space. Demy Svo. Pp. 90. 



1921 . Cambridge University Press . 



5s. 



Schlick, M. Space and Time in 

 Contemporary Physics . An Intro- 

 duction to the Theory of Relativity 

 and Gravitation. Rendered into 

 English by H. L. Brose. Svo. 

 Pp. 99. 1920. Oxford: Claren- 

 don Press. 6s. Qd. 



Silberstein, L. The Theory of 

 Relativity. Svo. Pp.304. 1914. 

 Macmillan. 12s. 6d. 



Slosson, E. E. Easy Lessons in 

 Einstein . A Discussion of the more 

 intelligible features of the Theory 

 of Relativity. Cr.Svo. Pp, 136. 



1920. Rout ledge. 5s. 



iv. CURRENT IN GASES. 



Thomson, Sir J. J. Conduction of 

 Electricity through Gases. Pp. 

 686. 2nd edn. Demy Svo. (at 

 present reprinting). Cambridge 

 University Press. 16s. 



Townsend, J. S. Electricity in 



Gases. Svo. Pp. 512. 1914. 



Oxford : Clarendon Press . 16s. 

 The Theory of lonization of Gases 



by Collision^. Cr. Svo. Pp. 100. 



1910. Constable. 4s. 6d. 



Wilson, H. A. The Electrical 

 Property of Flames and of Incandes- 

 cent Solids. Cr. Svo. Pp. 120. 

 1912. University of London Press. 

 6s. 



v. X-RAYS AND RADIO- 

 ACTIVITY . 



Addyman, F. T. Practical X-Ray 

 Work. Demy Svo. Pp.207. 1901. 

 Scott, Greenwood. 12s. 6d. 



Arthur, D., and Muir, J. A 



Manual of Practical X-Ray Work. 

 Demy Svo. Pp. 351. 1919. 

 Heinemann. 12s. 6d. 



Baker, T. T. Radiographic Tech- 

 nique. Demy Svo. Pp. 208. 



1921. Constable. 15s. 



104 



