vi Supplement to ‘‘ Nature,” June 23, 1923 

Physics: Electrical Engineering 
Aigner, F. Unterwasserschalltechnik: Grundlagen, 
Ziele und Grenzen. (Submarine Akustik in Theorie und 
Praxis. ) se: Roy. 8vo. Pp. vi+322. (Berlin: M. 
Krayn, 1922.) 9s. 3d.* 
Barr, AD Ewing, Sir J. A., and Paterson, C. C. 
Physics in Industry: Lectures delivered before the 
Institute of Physics. (Oxford Technical Publications.) 
Roy. 8vo. Vol. 1. Pp. 59. (London: H. Frowde and 
Hodder and Stoughton, 1923.) 2s. 6d. net.* 
Bloch, E. Les phénoménes thermioniques. (Recueil 
des Conférences-Rapports de Documentation sur la 
Physique. Vol. 4, 1’ Série, Conférences 9, 10. Edité par 
la Société ‘‘ Journal de Physique.’’) Med. 8vo. Pp. 111. 
(Paris: Les Presses universitaires de France, 1923.) 10 
francs.* 
Broughton, H. H. The Electrical Handling of 
Materials: a Manual, in four volumes, on the Design, 
Construction and Application of Cranes, Conveyors, 
Hoists and Elevators. Ex. Cr. 4to. Vol. 4: Machinery 
and Methods. Pp. xx+334. (London: Ernest Benn, 
Ltd., 1923.) 50s. net.* 
Coustet, E. L’Electricité. (Bibliotheque des Mer- 
veilles.) Fcap. 8vo. Pp. 220. (Paris: Hachette et Cie, 
1923.) 6 francs. . 
Dacremont, E. Electricité. (Bibliothéque de 1’In- 
génieur de Travaux publics.) 
production, transformation. 
L. Grininger. Pp. xii +846. 
42 francs. 
Dover, A.T. Traction Motor Control (Direct Current). 
Feap. 8vo. Pp. 124. (London: Sir I. Pitman and Sons, 
Ltd., 1923.) 2s. 6d. net. 
Haler, P. J.,and Stuart, A. H. An Introduction to 
Physics for Technical Students. Cr. 8vo. Pp. 240. 
(London: G, Bell and Sons, Ltd., 1923.) 3s. net. 
Harris, P. W. Practical Wireless Sets for All: Home 
Construction Made Easy. Cr. 8vo. Pp. 78. (London: 
The Wireless Press, Ltd. ; New York: Wireless Press, Inc., 
1923.) Is. 6d.* . 
Hayward, C. B. Modern Radio Practice. 
(London: C. Lockwood and Son, 1923.) Ios. net. 
Herbert,T.E. Telephony: an Elementary Exposition 
of the Telephone System of the British Post Office. Cr. 
8vo. Pp. xv +868. (London: Sir I. Pitman and Sons, 
Ltd., 1923.) 18s, net. 
Hobart, H. M. Electric Motors, their Theory and 
Construction : a Treatise for Consultants, Manufacturers, 
Designers and Advanced Students. (The Specialists’ 
Series.) Third edition, revised throughout. Demy 8vo. Vol. 
2: Chiefly concerning Polyphase Current. Pp. xv +384. 
(London : Sir I. Pitman and Sons, Ltd., 1923.) 15s. net.* 
Jude, R. H., and Satterly, J. Senior Magnetism and 
Electricity. Second edition. Cr. 8vo. Pp. viii+454. 
(London: University Tutorial Press, Ltd., 1923.) 6s. 6d. 
Merritt, E., Nichols, E.L.,and Child,C.D. Selected 
Topics in the Field of Luminescence. (Bulletin of the 
National Research Council, Vol. 5, Part 5, No. 30.) Sup. 
Roy. 8vo. Pp. 126. (Washington: National Academy 
of Sciences, 1923.) 2 dollars.* 
Pariselle, H. Les instruments d’optique. 
Armand Colin : Section de physique, No. 26.) 
Pp. vi+218. (Paris: A. Colin, 1923.) 
Philips’ Wireless Map of Great Britain. Compiled from 
Information supplied by the Wireless Press, Ltd. 36 in. 
by 48in. Scale 12 milestorin. (London: G. Philip and 
Son, Ltd., 1923.) Paper, folded in cover, 2s. 6d. net; 
Cloth, folded in case, 5s. 6d. net; Cloth, varnished, with 
rollers, 7s. 6d. net.* 
Roussel, J. Comment recevoir la téléphonie sans fil. 
8vo. Pp.272+2planches. (Paris: Libr. Vuibert, 1923.) 
6 francs. 
Silberstein, L. Eléments de 
magnétique de la lumiére. 
Gl.8vo. 1'partie: Théorie, 
2¢ édition mise a jour par 
(Paris: Libr. Dunod, 1923.) 
8vo. 
(Collection 
Feap. 8vo. 
la théorie électro- 
Traduit de l'anglais par G. 
Matisse. Gl. 8vo. Pp. vi+95. (Paris: Gauthier-Villars 
et Cie, 1923.) 6 francs.* 
Sleeper, M. B. ror Radio Receiving Circuits. (The 
Green Book.) Med. 8vo. Pp. 48. (New York: M. B. 
Sleeper; London: The Wireless Press, Ltd., 1923.) 2s. 6d. 
net. 

Sleeper, M.B. Six Successful Radio Sets. (The Red 
Book.) Med. 8vo. Pp. 48. (New York: M. B. Sleeper ; 
London: The Wireless Press, Ltd., 1923.) 2s. 6d. net. 
Soulier, A. L’Amélioration du facteur de puissance. 
(L’Industrie électrique, 10 février 1923.) Demy 8vo. 
Pp. 8. (Paris: Impr. Lahure, 1923.) 
Swann, W. F. G., Tate, J..T., Bateman, H., and 
Kennard, E. H. Electrodynamics of Moving Media. 
(Bulletin of the National Research Council, Vol. 4, Part 6, 
No. 24.) Sup. Roy. 8vo. Pp. 172. (Washington : 
National Academy of Sciences, 1922.) 2 dollars.* 
Varinois, M. La Soudure électrique: soudure par 
résistance, soudure a l’arc, machines a souder, exemples de 
travaux. 4to. Pp. vi+423. (Paris: Libr. Dunod, 
1923. 
Weber, W.L., Edited by. Handy Electrical Dictionary. 
Med.16mo, Pp.224. (London: S. Rentelland Co., Ltd., 
1923.) Is. 6d. net. 
Chemistry: Chemical Industry 
Aston, F.-W. Les Isotopes. Traduit de l’anglais 
Mile. S. Veil. 8vo. Pp. xviii+164 +4 planches. (Panis ¢ 
J. Hermann, 1923.) 15 francs. 
Aston, F. W. Isotope. Autorisierte Ubertragung ins 
Deutsche von Else Norst-Rubinovicz. 8vo. Pp. ix +162 
+4 Tafeln. (Leipzig: S. Hirzel, 1923.) Grundzahl: 3 
marks. 
Cumming, A. C. The Manufacture of Hydrochloric 
Acid and Saltcake. (The Manufacture of Acids and 
Alkalis. By G. Lunge. Completely revised and rewritten 
under the Editorship of A.C. Cumming. Vol. 5.) Demy 
8vo. Pp. xv +423. (London and Edinburgh: Gurney 
and Jackson, 1923.) 31s. 6d. net.* 
Dietrich, W. Einfiihrung in die physikalische Chemie 
fiir Biochemiker, Mediziner, Pharmazeuten und Natur- 
wissenschaftler. Zweite verbesserte Auflage. (Berlin: 
J. Springer, 1923.) Grundzahl: 2.8 marks. 
Ephraim, F. Anorganische Chemie: ein Lehrbuch 
zum Weiterstudium und Handgebrauch. Zweite und 
dritte verbesserte Auflage. Roy. 8vo. Pp. viili+742+ 
3 Tafeln. (Dresden und Leipzig: T. Steinkopff, 1923.) 
Fabre, J.-H. The Wonder Book of Chemistry. Trans- 
lated from the French by Florence C. Bicknell. Demy 
8vo. Pp. viii +385. 
1923.) ros. net.* 
Fester,G. Die Entwicklung der chemischen Technik : 
ein technologisch - historischer Versuch. 
(Berlin: J. Springer, 1923.) 6s. 3d. 
Holde, D. The Examination of Hydrocarbon Oils and 
of Saponifiable Fats and Waxes. Authorised translation 
from the Fifth German edition by E. Mueller. Second 
English edition. Med. 8vo. Pp. xix+572. (New York: 
J. Wiley and Sons, Inc.; London: Chapman and Hall, 
Ltd., 1922.) 25s. net.* : 
Holmyard, E. J. Practical Chemistry. (Bell's 
Natural Science Series.) Cr. 8vo. 
don: G. Bell and Sons, Ltd., 1923.) 4s. net.* 
Kamm, O. Qualitative Organic Analysis: an Ele- 
mentary Course in the Identification of Organic Com- 
(London: T. Fisher Unwin, Ltd., 
pounds. Med. 8vo. Pp. vii+260. (New York: J. 
Wiley and Sons, Inc.; London: Chapman and Hall, 
Ltd., 1923.) 12s. 6d. net.* 
Leduc, A. Volumes moléculaires : 
8vo. Pp. 120. (Paris: 
Martin, G. 
Popular Account of some of the more remarkable Recent 
Advances in Chemical Science for General Readers. 8vo. 
Pp. 378. (London: 
7s. 6d. net. 
Muller, E. La Pratique électrochimique. Traduit de 
l’allemand par J. Barbaudy. 8vo. Pp. xvi+ 340. (Paris 
et Liége : Ch. Béranger, 1923.) 30 francs. 
Quéret, Y. Manuel de l'industrie du gaz: Appareil- 
lage. (Bibliothéque professionnelle.) Pott 8vo. Pp. 322. 
(Paris; J.-B. Bailliére et fils, 1923.) 12 franes. 
Rivett, A. C. D. The Phase Rule and the Study of 
Heterogeneous Equilibria: an Introductory Study. Cr. 
8vo. Pp. 204. (Oxford: ‘Clarendon Press: London: 
Oxford University Press, 1923.) Ios. 6d. net.* 
Arr ae Gl. 
G. Doin, 1923.) francs.* 
Pp. vit+225. 
Pp. xvi+267. ~(Lon- 
Modern Chemistry and a Wonders: a 
Sampson Low and Co., Ltd., 1923.) _ 

al ee! 6 el a Pe 
