Supplement to “ Nature,” May 26, 1923 v 

Recent Scientific and Technical Books. 
Volumes marked with an asterisk have been received at ‘‘NATURE” Office. 
Mathematics 
Birkemeier. Uber den Bildungswert der Mathematik: 
ein Beitrag zur philosophischen Padagogik. (Wissenschaft 
und Hypothese, Band XXV.) (Berlin: B. G. Teubner, 
1923.) 45. 6d. 
Brewster, G. W. Commonsense of the Calculus. Cr. 
8vo. Pp. 62. (Oxford: Clarendon Press; London: 
Oxford University Press, 1923.) 2s. net.* 
Brownlee, J. Log I (x) from x=1 to 50:9 by 
Intervals of -or. (Department of Applied Statistics 
(Computing Section), University of London, University 
College : Tracts for Computers, No. 9.) Demy 8vo. Pp. 23. 
(London : Cambridge University Press, 1923.) 3s. 9d. net.* 
Dickson, L. E. History of the Theory of Numbers. 
Sup. Roy. 8vo. Vol. 3: Quadratic and Higher Forms ; 
with a Chapter on the Class Number, by G. H. Cresse. 
(Publication No. 256.) Pp. v+313. (Washington: 
Carnegie Institution, 1923.) 3.25 dollars.* 
Farnsworth, P. V. Industrial Mathematics Prac- 
tically Applied: an Instruction and Reference Book for 
Students in Manual Training, Industrial and Technical 
Schools, for Home Study. Cr. 8vo. Pp. 282. (London: 
Scott, Greenwood and Son, 1923.) 8s. 6d. net. 
Gauss, C. F. Carl Friedrich Gauss’ Werke. Zehnten 
Bandes. Abt. 2. 
Uber Gauss’ zahlentheoretischen Arbeiten. 
B. G. Teubner, 1923.) 5s. 6d. 
Madelung, E. Die mathematischen Hilfsmittel des 
Physikers. (Band IV. der ‘‘Grundlehren der mathema- 
tischen Wissenschaften,” herausgegeben von R. Tourant.) 
Pp. xii+247. (Berlin: J. Springer, 1923.) Grundzahl : 
8.25 marks. ’ 
Nernst, W., und Schoenflies, A. Einfiihrung in die 
mathematische Behandlung der Naturwissenschaften. 
Kurzgefasstes Lehrbuch der Differential- und Integral- 
rechnung mit besonderer Beriicksichtigung der Chemie. 
Zehnte, vermehrte und verbesserte Auflage. Roy. 8vo. 
Pp. xii+502. (Miinchen und Berlin: R. Oldenbourg, 
1923.) 9s. od.* 
Riemann, B. Uber die Hypothesen, welche der 
Geometrie zu Grunde liegen. Neu herausgegeben und 
erlautert von H. Weyl. Dritte Auflage. 8vo. Pp. vi+ 
48. (Berlin: J. Springer, 1923.) Grundzahl: 2.3 marks. 
Sommerville, D. M. Y. Division of Space by Con- 
gruent Triangles and Tetraheda. (Proceedings of the 
Royal Society of Edinburgh, Session 1922-1923, Vol. 43, 
Part 1, No. 6.) Sup. Roy. 8vo. Pp. 85-116. (Edin- 
burgh: R. Grant and Son; London: Williams and 
Norgate, 1923.) 2s. 8d.* 
Steinmetz, C. P. Four Lectures on Relativity and 
Space. Med. 8vo. Pp. x+126. (London: McGraw- 
Hill Publishing Co., Ltd., 1923.) ros.* 
Walker, C. A., and Ibbetson, W. S. Tables and 
Units for Engineering Students. 8vo. Pp. 40. (London: 
E. and F. N. Spon, Ltd., 1923.) Is. net. 
Abhandlungen I und V. Bachmann: 
(Berlin : 
Mechanics: Mechanical Engineering 
Bland, M. C. Handbook of Steel Erection. Feap. 
8vo. Pp. ix+241. (London: McGraw-Hill Publishing 
Co., Ltd., 1923.) 12s. 6d.* 
Casazza, G. I principi della meccanica alla luce della 
critica. Pott 8vo. Pp. 174. (Roma, Milano, Napoli: 
Albrighi, Segati e Cia., 1921.) * 
Colvin, F. H., and Stanley, F. A. Machine Tools and 
their Operation. First edition, second impression. Med. 
8vo. Part 1: Lathes, Drills and Drilling, Hand and 
Automatic Screw Machines, Screw Machine Tools and 
Boring. Pp. viit+341. Part 2: Planers, Shapers, 
Slotters, Broaching, Milling, Gear Cutting and Grinding. 
Pp. vii+4o9. (London: McGraw-Hill Publishing Co., 
Ltd., 1922.) 20s. each part.* 
Creager, W.-P. La Construction des grands barrages 
en Amérique. Traduit de l’anglais par E. Callandreau et 
H.-P. Humbert. 8vo. Pp. 243+7 planches. (Paris; 
Gauthier-Villars et Cie, 1923.) 25 francs. 
Croft, T., Edited by. Steam-Turbine Principles and 
Practice. (Power Plant Series.) Ex. Cr. 8vo. Pp. xi +347. 
(London : McGraw-Hill Publishing Co., Ltd., 1923.) 15s.* 
Dowd, A. A., and Curtis, F. W. Tool Engineering : 
Fixtures for Turning, Boring and Grinding. Med. 8vo. 
Pp. xi+340. (London: McGraw-Hill Publishing Co., 
Ltd., 1923.) 17s. 6d.* 
Dubbel, H. Kolbendampfmaschinen und Danipf- 
turbinen : ein Lehr- und Handbuch fiir Studierende und 
Konstrukteure. Sechste, vermehrte und _ verbesserte 
Auflage. (Berlin: J. Springer, 1923.) Grundzahl: 11 marks. 
Franche, G. Les Huiles en mécanique: graissage : 
combustibles liquides. Feap. 8vo. Pp. viii +376. (Paris: 
Libr. Desforges, 1923.) 16.50 francs. 
Graf, O. Der Aufbau des Mértels im Beton. Beitrag 
zur Vorausbestimmung der Festigkeitseigenschaften des 
Betons auf der Baustelle. Untersuchungen iiber die 
zweckmassige Zusammensetzung des Zementmortels im 
Beton, namentlich tiber den Einfluss der Korngrésse des 
Sandes auf die Druckfestigkeit und das Raumgewicht des 
Zementmortels. 8vo. Pp.iv+64. (Berlin: J. Springer, 
1923.) Grundzahl: 2 marks. 
Gramberg, A. Maschinentechnisches Versuchswesen. 
Erster Band: Technische Messungen bei Maschinenunter- 
suchungen und zur Betriebskontrolle. Zum Gebrauch an 
Maschinenlaboratorien und in der Praxis. Fiinfte, vielfach 
erweiterte und umgearbeitete Auflage. (Berlin: J. 
Springer, 1923.) Grundzahl: 14 marks. 
Jauneaud, M. L’Evolution de l’aéronautique. (Bi- 
bliothéque de Philosophie scientifique.) Pott 8vo. Pp. 
282. (Paris: E. Flammarion, 1923.) 7.50 francs. 
Leeds, C. C. Principles of Engineering Drawing for 
Technical Students. Second edition, revised and enlarged. 
Med. 8vo. Pp. x+188. (London: Scott, Greenwood and 
Son; New York: D. Van Nostrand Co., 1923.) tos. 6d. net. 
Leutwiler,O.A. Problems in Machine Design. Med. 
8vo. Pp. vii+133. (London: McGraw-Hill Publishing 
Co., Ltd., 1923.) 7s.6d.* 
Ludin, A. Die Wasserkrafte, ihr Ausbau und ihre 
wirtschaftliche Ausnutzung: ein technisch-wirtschaft- 
liches Lehr- und Handbuch. In zwei Bande. Manul- 
druck, 1923. 8vo. Pp. xxiv +1402+11Tafeln. (Berlin: 
J. Springer, 1923.) Grundzahl: 65 marks. 
Massey, G. B. The Engineering of Excavation. 8vo. 
Pp. 376. (London: Chapman and Hall, Ltd., 1923.) 30s. net. 
Mease, J. A., and Nordenholt, G. F. Design of 
Machine Elements. Med. 8vo. Pp. vii+237. (London: 
McGraw-Hill Publishing Co., Ltd., 1923.) 12s. 6d.* 
Ostertag, P. Kolben- und Turbo-Kompressoren : 
Theorie und Konstruktion. Dritte, verbesserte Auflage. 
(Berlin: J. Springer, 1923.) Grundzahl: 20 marks. 
Schweissguth, P. H. Schmieden und _ Pressen. 
(Berlin: J. Springer, 1923.) Grundzahl: 3 marks. 
Snodgrass, J. M.,and Guldner, F.H. An Investiga- 
tion of the Properties of Chilled Iron Car Wheels. Med. 
8vo. Part 3: Strains due to Brake Application, Co- 
efficient of Friction and Brake-shoe Wear. Conducted 
by the Engineering Experiment Station, University of 
Illinois, in Codperation with the Association of Manufac- 
turers of Chilled Iron Car Wheels. (Bulletin No. 135.) Pp. 
100. (Urbana, Ill. : University of Illinois, 1923.) 50 cents.* 
Stringer, H. Pioneer Railway Engineering. Med. 
8vo. Pp. 269. (London: H. F. and G. Witherby, 1923.) 
12s. 6d. net. 
Weiss, J. B. Gliding and Soaring Flight: a Survey 
of Man’s Endeavour to Fly by Natural Methods. Cr. 8vo, 
Pp. xx+164. (London: Sampson Low and Co., Ltd., 
1923.) 5s. net. 
Whyatt, H. G. Streets, Roads and Pavements: a 
Treatise on the Materials, Equipment, and Methods em- 
ployed in the Construction and Maintenance of Roads and 
Footways; with Notes on Dust Prevention, Road Wear, 
Street Cleansing, Arterial Roads, and Road Planning, for 
Engineers, Students, and all those concerned with the 
Construction and Upkeep of Highways. (Pitman’s Tech- 
nical Primers.) Feap. 8vo. Pp. 152. (London: Sir I. 
Pitman and Sons, Ltd., 1923.) 2s. 6d, net. 
X 4 
