HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 839 



MATHEMATICS, continued . 



16769 WEICHOLD (G.) LEHRBUCH der DETERMINANTEN und deren Anwendungen, I. [einziger] 

 Teil, roy. 8vo. buckram, 5s Qd (p. M. 10 sewn) Bremerhaven [Ib93] 



16770 - ANOTHER COPY, hf. cl., 5s Stuttgart, 1893 



16771 WEITZEL (C. G.) UNTERRICHTSBRIEFE fiir die BUCHSTABENRECHNUNG und ALGEBRA, sowie 

 fiir EBENE GEOMETRIE (Planimetrie) und Anwendung der Algebra auf Geometrie, in Gesprachs- 

 forni zum SELBSTUNTERRICHTE, 2 vols. roy. 8vo. in 1, hf. black morocco neat, cl, sicks, 10s Qd 

 (p. M. 15 sewn) Wien [1910] 



16772 fiir die HOHERE MATHEMATIK (Analysis, analytische Geometrie, Differential- 



und Integralrechnung) in Gespriichsform zum SELBSTUNTERRICHTE ; with diagrams, roy. 8vo. 

 hf. black morocco neat, cl. sides, 6s (p. M. 7.50 sewn) ibidem [1914] 



16773 WEITZENBOCK (Roland) KOMPLEX-SYMBOLIK : eine EinfuhruDg in die analytische 

 Geometrie mehrdimensionaler Kaume, cr. 8vo. cl., 3* (p. M. 4.80) Leipzig, 1908 



16774 WELD (Laenas Gifford, Univ. Iowa) SHORT COURSE of the THEORY of DETERMINANTS, 

 3rd Edition, post 8vo. buckram, 5s (p. 8s nett) New York, 1903 



16775 WENCK (Julius) Die GRUNDLEHREN der IIOHEREN ANALYSIS; with 140 diagrams, Svo. 

 buckram (title soiled), 3s Qd (p. M. 6 sewn) Leipzig, 1872 



16776 WERTHEIM (Gustav) ANFANGSGRUNDE der ZAHLENLEHRE ; with portraits of Fermat, 

 Lagrange, Euler, and Gauss, 8vo. buckram, 6s Qd (p. M. 9 sewn) Braunschweig, 1902 



16777 ANOTHER COPY, hf. black morocco neat, cl. sides (fine copy), Is Qd 



16778 ELEMENTS der ZAHLENTHEORIE, 8vo. buckram, 5s (p. M. 8.40 sewn) Leipzig, 1887 



16779 ANOTHER COPY, hf. calf, 5s Qd 



16780 WHITEHEAD (Alfred North, F.R.S. ; Prof. Applied Mathematics, Impl. Coll. Science) The 

 AXIOMS of PROJECTIVE and DESCRIPTIVE GEOMETRY, with diagrams, 2 vols. 8vo. sewn, 3s Qd 

 (p. 5s nett) Univ. Press, Cambridge, 1906-7 



16781 - - TREATISE on UNIVERSAL ALGEBRA, with Applications, Vol. I (all published), with 

 diagrams, large roy. Svo. cl., uncut, 14s (p. 1. Is nett) apud eandem, ibidem, 1898 



An important work on the foundations of mathematics, containing i. a. an extension of non-Euclidean geometry. 



16782 , and the Hon. Bertrand Arthur William RUSSELL, F.R.S. : PRINCIPIA MATHE- 



MATICA, 3 vols. large roy. Svo. cl., 2. 15s (p. 3. 16s nett) a. e., ib., 1910-13 



v. RUSSELL, ante. 



16783 WHITTAKER (Edmund Taylor; F.R.S.; Prof. Mathematics, Edin.) COURSE of MODERN 

 ANALYSIS : an Introduction to the General Theory of Infinite Series and of Analytic Functions ; 

 with Account of the principal Transcendental Functions, large roy. Svo. buckram, uncut, t. e. g., 

 Qs Qd (p. 12s 60? nett) Univ. Press, Cambridge, 1902 



16784 WHITWORTH (William Allen, Vicar of All Saints', Margaret St.) CHOICE and CHANCE: 

 an elementary Treatise on Permutations, Combinations, and Probability, with 640 Exercises ; 

 4th Edition, enlarged, cr. Svo. cl., 3s (p. 7* Qd) Cambridge, 1886 



16785 FIFTH [LATEST] EDITION, much enlarged, with 1000 Exercises, cr. Svo. buckram, t.e. g., 



4s (p. 7s Qd) ibidem, 1901 



16786 - DCC EXERCISES, including Hints for the Solution of all the Questions in * CHOICE and 

 CHANCE,' post Svo. red buckram, 3s Qd (p. 6s) ib., 1897 



16787 TRILINEAR COORDINATES, and other Methods of Modern Analytical Geometry of Two 



Dimensions, with diagrams, Svo. cl., or, buckram, 5s (p. 16s) ib., 1866 



Though Catholicminded people are intellectually wretched cretins, Prebendary Allen Whitworth must have had some 

 brains once upon a time. 



16788 WIELEITNER (Heinrich) GESCHICHTE der MATHEMATIK, von CARTESIUS bis zur Wende 

 des 18. Jahrhunderts, I. Halfte (soweit erschienen) : Arithmetik, Algebra, Analysis, bearbeitet 

 unter Benutzung des Nachlasses von ANTON V. BRAUMUHL ; with 6 diagrams, large cr. 8vo. cl., 

 s (p. M. 6.50) Leipzig, 1911 



v. GUNTHER, ante. 



16789 SPEZIELLE EBENE KURVEN ; with 189 diagrams, large cr. Svo. cl., Is Qd (p. M. 12) 



ibidem, 1908 



16790 THEORIE der EBENEN ALGEBRAISCHEN KURVEN HOHERER ORDNUNG ; with 82 illustra- 

 tions, large cr. Svo. cl., Qs (p. M. 10) ib., 1905 



16791 WIENER (Christian, Technische Hochschule, Karlsruhe) LEHRBUCH der DARSTELLENDEN 

 GEOMETRIE ; with numerous illustrations, 2 vols. large Svo. original hf. morocco (as good as new), 

 1. Is (p. M. 34) Leipzig, 1884 \_fs. 1906] -1887 



16792 WILCZYNSKI (Ernest Julius; Univ. Chicago) PROJECTIVE DIFFERENTIAL GEOMETRY of 

 CURVES and RULED SURFACES, large Svo. cl., Qs Qd (p. M. 10) Leipzig, 1906 



16793 WILLIAMSON (Benjamin, T.C.D., F.R.S.) ELEMENTARY TREATISE on the DIFFERENTIAL 

 CALCULUS, containing the Theory of Plane Curves, with numerous Examples, 9th Edition, 



revised, with diagrams : on the INTEGRAL CALCULUS, containing Applications to 



Plane Curves and Surfaces, and Chapters on the CALCULUS of VARIATIONS, with numerous 

 Examples, 8th Edition, enlarged, with diagrams 2 vols. cr. Svo. in 1, handsomely bound in hf. 

 pigskin, cl. sides, t. e. g. (nice copies), 13s (p. 1. Is in cl.) 1899-1906 



16794 ELEMENTARY TREATISE on the INTEGRAL CALCULUS, with numerous Examples; 8th 



Edition, enlarged, with diagrams, post Svo. buckram, Qs (p. 10s Qd) 1906 



55 * 



