Nature, J 
August 11, 1923 
Geology and Mineralogy : 
Andrée (Prof. K.), Geologie in Tabellen fiir Studierende 
der Geologie, Mineralogie, und der Bergfachs, der 
Geographie und der Landwirtschaft. Erster Teil, 
Zweiter Teil, Dritter Teil, 630 
Bosworth (Dr. T. O.), with an Account of the Palzon- 
tology by H. Woods, Dr. T. W. Vaughan, Dr. J. A. 
Cushman, and others, Geology of the Tertiary and Qua- 
ternary Periods in the North-west part of Peru, 527 
Boule (Prof. M.) and d’A. Thevenin, Mammiféres fossiles 
de Tarija, 699 ; 
Cole (Prof. G. A. J.), Common Stones: Unconventional 
Essays in Geology, 144 ; Memoir and Map of Localities 
of Minerals of Economic Importance and Metalliferous 
Mines in Ireland, 735 
Egypt and Palestine—Water Supply. The Work of 
the Royal Engineers in the European War, 1914-19. 
Work in the Field in other Theatres of War, 873 
Gardiner (C. I.), Geology, 876 
Geological Survey of Great Britain and the Museum of 
Practical Geology for 1921, Summary of Progress 
of the, with Report of the Geological Survey Board and 
Report of the Director, 664 
Geological Work on the Western Front. The Work of the 
Royal Engineers in the European War, t914-19. Work 
in the Field under the Engineer-in-Chief, B.E.F., 873 
Geophysik, Zeitschrift fiirangewandte. Unter standiger 
Mitarbeit zahlreicher Fachgenossen. Vol. I., Part I., 
145 : 
Johannsen (Dr. A.), Essentials for the Microscopical 
Determination of Rock-forming Minerals and Rocks, 
I 
Reeayhe (Sir R. A. S.), The British Coal-mining 
Industry during the War, 766 
Ries (Prof. H.) and Prof. T. L. Watson, Elements of 
Engineering Geology, 732 
Sherlock (Dr. R. L.), Man as a Geological Agent: an 
Account of his Actions on Inanimate Nature, 352 
Truscott (Prof. S. J.), A Text-book of Ore-dressing, 696 
Watson (the late J.), edited by Dr. R. H. Rastall, 
Cements and Artificial Stone: a Descriptive Cata- 
logue of the Specimens in the Sedgwick Museum, 
Cambridge, 803 
Wilson (G. V.), The Ayrshire Bauxitic Clay, 110 
Woodward (H. B.). Second edition, revised by C. E. N. 
Bromehead ; with Notes on the Paleontology by C. P. 
Chatwin, The Geology of the London District, 251 
Mathematical and Physical Science : 
Bohr (Prof. N.), The Theory of Spectra and Atomic 
Constitution : Three Essays, 523 
Born (Prof. Max), Der Aufbau der Materie: Drei 
Aufsatze tiber moderne Atomistik und Electronen- 
theorie. Zweite Auflage, 109; Traduit par H. 
Bellenot, La Constitution de la matiére, 109; Traduit 
par Dr. F.-A. Finkelstein et J.-G. Verdier, La Théorie 
de la relativité d’Einstein et ses bases physiques : 
exposé éJémentaire, 697 
Bouguer (P.), Essai d’optique sur la gradation de la 
lumiére, 320 
Boussinesq (Prof. J.), Cours de physique mathématique 
de la Faculté des Sciences. Complements au tome 3, 
6 
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Calvert (W. J. R.), Heat, 216 
Campbell (Dr. Norman R.), Modern Electrical Theory : 
Supplementary Chapters. Chapter XVI.: Relativity, 
6 
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Cours professé a la Faculté des Sciences de Paris, 217 
Cosens (C. R. G.), Two-figure Tables, 320 
Crowther (Dr. J. A.), Molecular Physics. Third edition, 
279 
Dickson (Prof. L. E.), History of the Theory of Numbers. 
Vol. II., rz 
Drumaux (Prof. P.), L’Evidence de la théorie d’Einstein, 
697 
Eddington (Prof. A. S.), The Mathematical Theory of 
Relativity, 697 
Title Index liii 

Edwards (J.), A Treatise on the Integral Calculus : 
with Applications, Examples, and Problems. Vol. 2, 
391 
Einstein (Prof. A.), The Meaning of Relativity: Four 
Lectures delivered at Princeton University, May 1921. 
Translated by Prof. E. P. Adams, 697 
Few (H. P.), Elementary Determinants for Electrical 
Engineers, 566 
Goldsmith (Dr. J. N.), Dr. S. J. Lewis, and F. Twyman, 
Optical Methods in Control and Research Laboratories. 
Vol. I. Second edition, 566 
Gray (Prof. A.) and G. B. Mathews. Second edition 
prepared by A. Gray and Dr. T. M. MacRobert, 
A Treatise on Bessel Functions and their Applications 
to Physics, 422 
Gunther (R. T.), Early Science in Oxford. Part 2: 
Mathematics, 75 
Hamburger Sternverzeichnis 1845-0, Carl Riimkers. 
Herausgegeben von Dr. R. Schorr, 564 
Heat Transmission. Ministry of Munitions and Depart- 
ment of Scientific and Industrial Research. Technical 
Records of Explosives Supply, 1915-1918. No. 9, 12 
Heiberg (J. L.), translated by D. C. Macgregor, Mathe- 
matics and Physical Science in Classical Antiquity. 
(Chapters in the History of Science, II.), 355 
Henry (A.), Calculus and Probability for Actuarial 
Students, 769 
Jeans (Dr. J. H.), The Nebular Hypothesis and Modern 
Cosmogony: being the Halley Lecture delivered on 
May 23, 1922, 662 
Jones (H. Spencer), General Astronomy, 247 
Kempton (P. H. S.), The Industrial Applications of 
X-rays, 665 
Kopff (Prof. A.), translated by Prof. H. Levy, The 
Mathematical Theory of Relativity, 697 
Kornerup (T.), translated by Phyllis A. Petersen, 
Musical Acoustics based on the Pure Third System, 565 
Leblanc fils (M.), L’Arc électrique, 805 
Logarithms to Seven Places of Decimals, A New Manual 
of, edited by Dr. Bruhns. New edition, 320 
Longitudes, Bureau des, Annuaire pour l’an 1923 
publié par le, 144 
MacLeod (Dr. A.), Introduction 4 la géométrie non- 
Euclidienne, 11 
Martin (Dr. L. C.), Colour and Methods of Colour 
Reproduction. With Chapters on Colour Printing 
and Colour Photography, 799 
Michaud (F.), Rayonnement et gravitation, 217 
Miner (Dr. J. R.), Tables of JI —v* and 1-¥? for Use 
in Partial Correlation and in Trigonometry, 320 
Mottelay (Dr. P. F.), Bibliographical History of 
Electricity and Magnetism, Chronologically Arranged, 
142 
Murnaghan (Prof. F. D.), Vector Analysis and the 
Theory of Relativity, 697 
Ordnance Survey: The Second Geodetic Levelling of 
England and Wales, 1912-1921, 7 
Peddie (Prof. W.), Colour Vision: a Discussion of the 
Leading Phenomena and their Physical Laws, 799 
Physics, Applied, A Dictionary of, edited by Sir 
Richard Glazebrook. In 5 volumes. Vol. 3, 558 
Reiche (Prof. F.), translated by Dr. H. S. Hatfield and 
H. L. Brose, The Quantum Theory, 279 
Silberstein (Dr. L.), The Theory of General Relativity 
and Gravitation: based on a Course of Lectures 
delivered at the Conference on Recent Advances in 
Physics held at the University of Toronto in January 
1921, 697 ; 
Spurgeon (E. F.), Life Contingencies, 769 
Study (Prof. E.), Mathematik und Physik: Eine 
erkenntnistheoretische Untersuchung, 565 
Tychonis Brahe Dani: Opera Omnia, edidit I. L. E. 
Dreyer. Tomus IV., 179 
Walsh (J. W. T.), The Elementary Principles of Lighting 
and Photometry, 804 
Watson (Prof. G. N.), A Treatise on the Theory of 
Bessel Functions, 422 
Wentworth (G.), D. E. Smith, and H. D. Harper, 
Machine-shop Mathematics, 805 
Whitehead (Prof. A. N.), The Principle of Relativity 
with Applications to Physical Science, 697 
