S62 HENRY SOTHEEAN & CO., 140, STRAND, W.C., and 43, PICCADILLY, W. 



Physics, continued: — 



17263 VOLK.MANN (Paul, Univ. Konigsherg) Einfuhrung in das Studium der theoretischen 

 Physik, insbesondere in das der ANALYTISCHEN Mechanik, niit Einleitung in die Theorie der 

 physikalischen Erkenntniss : Vorlesungen ; with diagrams, roy. 8vo. handsomely hound in hf. 

 black morocco, cl. sides, 6s Qd (p. M. 14 sewn) Leipzig, 1900 



17264 ZwEiTE [neueste] mehefach umgearbeitete Auflage; with2'^ diagrams, large 8vo. 



hf. black morocco neat, cl. sides, t. e. g. {nice copy), lOs 6d (p. M. 13 sewn) ibidem, 1913 



17265 WALKER (Gilbert Thomas, f.r.s., Director-Gen. of Observatories, India) Outlines of the 

 Theory of Electromagnetism : Lectures before the Calcutta University, ivith diagrams, 8vo. 

 cl., 2s (p. 35 nett) Univ. Press, Cambridge, 1910 



17266 WALLON (Etienne) Lecons d'OPTlQUE Geometrique ; with 169 illustrations, roy. Svo. hf. 

 black calf neat, cl. sides, uncut, t. e. g. {fine copy), Qs Qd (p. F. 9 nett sewn) 1800 



17267 WALTON (William, Trinity Coll., Cantab) Collection of Problems in Illustration of the 

 Principles of Theoretical Hydrostatics and Hydrodynamics, with 3 folding plates, Svo. 

 buckram, t. e. g., 3s Cambridge, 1847 



17268 Collection of Problems in Illustration of the Principles of Theoretical Mechanics ; 



3rd [last] Edition [with numerous additional Problems] , with 7 folding plates, thick Svo. buckram, 

 t. e. g., 7s (p. 16s) ibidem, 1S76 



1726G WAND (Theodor) Die Principien der mathematischen Physik und die Potential- 

 theorie, nebst ihren vorziiglichsten Anwendungen ; with 8 diagrams, Svo. cl., 2* Leipzig, 1871 



17270 WANGERIN (Albert, Univ. Halle) Theorie des Potentials und der Kugelfunktionen, 

 I. [einziger] Band ; with 36 diagrams, large cr. Svo. cl., is (p. M. 6.60) Leipzig, 1909 



17271 WATSON (Henry William; pr., f.r.s.) Treatise on the Kinetic Theory of Gases, 2nd 

 [last] Edition, post Svo. cl., 2s Qd (p. 4s 6d) Clarendon Press, Oxford, 1893 



17272 WATSON (William, f.r.s., Boy. College of Science) Text-Book of Physics, including a 

 Collection of Examples and Questions ; 4th Edition, u-iih 579 illustrations, thick large post Svo. 

 handsomely bound in hf. black morocco, cl. sides, t. e. g. {as good as netc). Is (p. 10s 6d in cl ) 1905 



17273 WEBER (Ernst Heinrich ; Prof. Physiology, Leipzig, und Wilhelm Eduard ; Prof. 

 Physics, Gottingen) Wellenlehre auf Experimente gegrundet, oder iiber die Wellen tropf- 

 barer Fliissigkeiten, mit Anwendung auf die Schall- und Lichtwellen ; with 18 fine folding 

 plates on copper, and2 folding tables, thick post Svo. cl. {nice copy) ; rare, £1. Is Leipzig, 1825 



This classic on wave-motion, which is dedicated to Chladni, first demonstrated the interference of sound-waves by the 

 tuning-fork, the existence of transverse waves in fluids, interference and reflexion of waves, and the formation of 

 .stationary waves. 



'The subject of stationary waves was first experimentally treated by the Messrs. Weber, in their excellent researches 

 on Wave-motion.' — Frof. Tyndo.ll. 



17274 WEBSTER (Arthur Gordon, Clark Univ., Worcester, Mass.) The Theory of Electricity 

 and Magnetism, being Lectures on Mathematical Physics, with 101 illustrations, Svo. cl.. Is Qd 

 (p. I5s nett) 1897 



17275 WEILER (W.) Elektricitat und Magnetismus, 2. verbesserte Auflage ; with 445 tinted 

 illustrations, Svo. cL, 5s Esslingen [1905] 



To tint the illustrations in a treatise on electricity is a helpful idea which seems to have occurred to the author of the 

 above book alone. 



17276 Worterbuch der Elektricitat und des Magnetismus: ein Hand- und Nachschlage- 



buch zur Erklarung, Erliiuterung und Beschreibung der elektrischen und magnetischen Ausdriicke, 

 Gesetze, Vorgiinge, Apparate, Instrumente und Maschinen nebst Hiitswissenschaften und 

 Anwendungen ; luith 816 illustrations, large roy. Svo. hf. pigskin, cl. sides {back worn), 7s (p. M. 12 

 sewn) Leipzig [1898] 



17277 WEINSTEIN (Bernhard ; Univ. Berlin) Thermodynamik und KiNETlKder Korper ; with 

 diagrams, 3 vols. Svo. hf. black morocco neat, cl. sides, uncut, t. e. g. {fine copy), £2. lOs (p. M. 64 

 sewn) Braunschweig, 1901-8 



Inhalt:— I. Allgemeine Thermodynamik und Kinetik und Theorie der idealen und wirklichen Gase und Dampfe : II. 

 Absolute Temperatur der Flussigkeiten ; die Flussigkeiten ; die festen Korper ; thermodynamische Statik und Kinetik 

 der (nicht verdiinnten) Lcisungen : III. Die verdilnnten Losungen ; die Dissociation; Thermodynamik der Elektricitat 

 und des Magnetismus : Elektrochemie. 



17278 WEISBACH (Julius, Bergakademie, Freiberg) Lehrbuch der theoretischen Mechanik, 

 mit den nothigen Hiilfslehren aus der Analysis ; 5. [letzte] vervollstandigte Aullage, bearbeitet 

 von Gustav Hermann ; with over 1000 woodcuts, Svo. (pp. 1340), handsomely bound in hf. pig- 

 skin, cl. sides, lis 6d (p. M. 26 sewn) Braunschweig, 1896 



17279 Manual of the Mechanics of Engineering, and of the Construction of Machines, with 



Introduction to the Calculus, Vol. I : Theoretical Mechanics, translated from the 4th German 

 Edition by Eckley B. Coxe, with 902 woodcuts, thick Svo. hf. maroon morocco neat, cl. sides {nice 

 copy), 8s Qd (p. £1. 5* in cl.) 1877 



17280 WHETHAM (William Cecil Dampier, Fellow of Trinity, f.r.s.; ew^eww^ The Recent 

 Development of Physical Science, with portraits, plates, cmd woodcuts, large post Svo. cl., 

 3s Qd (p. 7s Qd nett) 1904 



17281 WHITTAKER (Edmund Taylor, f.r.s.; Prof. Mathematics, Edin.) The Theory of 

 Optical Instruments, with diagrams, Svo. sewn, 2s Univ. Press, Cambridge, 1907 



