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



MATHEMATICS, continued: 



16796 WILSON (Victor Tyson, Mich. Agricultural Coll.) DESCRIPTIVE GEOMETRY : a Treatise 

 from a Mathematical Standpoint, with Exercises and Practical Applications, with 149 diagrams, 

 large Svo. buckram, 45 (p. 65 Qd nett) Neiv York, 1909 



16797 WILSON (W. N., Rugby School] GEOMETRICAL DRAWING, with numerous diagrams, 2 vols. 

 post Svo. cl., 45 Qd (p. 9s) 1903 



16798 WITHERS (John William) EUCLID'S PARALLEL POSTULATE: its Nature, Validity, and 

 Place in Geometrical Systems, cr. Svo. cl., 45 (p. 65 Qd nett) Chicago, 1905 



16799 WOLSTENHOLME (Joseph, Math. Prof., Cooper's Hill) MATHEMATICAL PROBLEMS on 

 Subjects for the Cambridge Mathematical Tripos Examination, 3rd [last] Edition, revised and 

 corrected, Svo. cl., 105 6d (p. 185) 1S91 



' His fame rests chiefly on the wonderful series of original mathematical problems which he constructed upon prac- 

 tically all the subjects that entered into the course of training of students. They form a curious and almost unique 

 monument of ability and industry." A. R. Forsyth, F.R.S. 



16800 WOODWARD (Robert Sijnpson, Pres., Carnegie Inst., Washington) PPOBABILITY and 

 THEORY of ERRORS, with diagrams, Svo. cl., 3s (p. 4s Qd nett) New York, 1906 



16801 WOOLHOTJSE (Wesley S. B., F.R.A.S.) ELEMENTS of the DIFFERENTIAL CALCULUS; 6th 

 Edition, '74 : RUDIMENTARY TREATISE on the INTEGRAL CALCULUS, by Homersham Cox, 

 '52: EXAMPLES of the INTEGRAL CALCULUS, by James Hann, '503 vols. fcap. Svo. in 1, 

 buckram, 3s 6d 1850-74 



16802 WORMS de ROMILLY (P.) Sur les PREMIERS PRINCIPES des SCIENCES MATHEMATIQUES, 

 roy. Svo. buckram, t. e. g., 25 1908 



16S03 WRIGHT (R. H., pr., Trinity Coll., Cantab.) COLLECTION of PROBLEMS and THEOREMS, 

 with Hints, Results, and occasional Solutions, forming Examples in the Methods of MODERN 

 GEOMETRY, especially TRILINEAR COORDINATES, with diagrams, fcap. Svo. cl., 3s tid 1865 



16804 WRIGLEY (Alfred, pr. ; Prof. Mathematics, Addiscombe ; F.R.A.S.) COLLECTION of 

 EXAMPLES and PROBLEMS in PURE and MIXED MATHEMATICS, with Answers and Occasional 

 Hints, 10th [last] Edition, with the Key, with 4 plates (linen-mounted), and diagrams, 2 vols. 

 Svo. in 1, hf. black morocco gilt, cl. sides (as good as new), 75 6d (p. 195 in cl.) Cambridge, 1889-8 



16805 WRONSKI (Hoene de, Officier d'Artillerie russe) INTRODUCTION a la PHILOSOPHIE des 

 MATHEMATIQUES, et TECHNIE d'ALGORiTHMiE, 4to. hf. purple calf neat (nice copy), with auto, 

 and MS. notes of Prince Salm, and some pp. underlined (VERY SCARCE), 1. 155 181.1 



Dedicated to the Tsar Alexander the First. 



' Novateur en religion, en politique et en mathematiques, il se disait a la fois le Messie et le Newton des temps 

 nouveaux, et annongait la creation d'une theorie definitive des nombres, de la solution d'une theorie de la matiere dans 

 ses trois etats.' Biogr. Gen. 



16806 XAVIER (Agliberto) THEORIE des APPROXIMATIONS NUMERIQUES et du CALCUL 

 ABREGE ; with diagrams, Svo. hf. black morocco neat, cl. sides, t. e. g. (as good as new), Is 

 (p. F. 10 nett sewn) 1909 



16807 YOUNG (William Henry, F.R.S. ; Univ. Liverpool) The FUNDAMENTAL THEOREMS of the 

 DIFFERENTIAL CALCULUS, Svo. sewn, 2s Univ. Press, Cambridge, 1910 



16808 , and Grace CHISHOLM, Girton Coll. : The THEORY of SETS of POINTS [with Biblio- 

 graphy (pp. 14)] , Svo. hf. black morocco neat, cl. sides, t. e. g. (as good as new), 9s (p. 12s nett) 



apud eandem, ibidem, 1906 

 ' An attempt at a simple representation of one of the most recent branches of mathematical science.' Preface. 



16809 ZEUNER (Gustav Anton, Polytechnikum, Zurich) ABHANDLUNGEN aus der MATHEMA- 

 TISCHEN STATISTIK ; with 27 illustrations, large Svo. hf. broivn morocco neat, uncut, t. e. g. (nice 

 copy), 5s (p. M. 7 sewn) Leipzig, 1869 



16810 ZINDLER (Konrad, Univ. Innsbruck) LiNiENGEOMETRlE mit ANWENDUNGEN ; with 111 

 diagrams, 2 vols. large cr. Svo. cl., 12s Qd (p. M. 20) Leipzig, 1902-6 



16811 ZORETTI (Ludovic, Univ. Caen) LEMONS de MATHEMATIQUES GENERALES, avec Preface de 

 PAUL APPELL ; with 206 diagrams, Svo. (pp. 769), hf. black morocco neat, cl. sides (fine copy), 

 13s Qd (p. F. 20 nett in cl.) 



16812 LsgoNS sur le PROLONGEMENT ANALYTIQUE, large Svo. buckram, t. e. g., 3s 1911 



ASTRONOMY and GEODESY: 



16813 ADAMS (John Couch, F.R.S. ; discoverer of Neptune) LECTURES on the LUNAR THEORY, 

 edited by RALPH ALLEN SAMPSON, F.R.S., cr. Svo. cl., 2s 6d (p. 5s) Univ. Press, Cambridge, 1900 



16814 AIRY (Sir George Biddell, F.R.S., Astronomer Royal) GRAVITATION : an Elementary Ex- 

 planation of the principal Perturbations of the Solar System, 2nd [latest] Edition, ivith 50 

 diagrams, post Svo. cl. (o. p.), 5s 1884 



First published in 1834. 



16S15 ALLIATJME (Maurice ; Belgian Navy) ELEMENTS d'ASTRONOMiE ; with diagrams, Svo. 

 buckram, uncut, t. e. g., 3s Gd LOUVAIN, 1913 



