792 HENRY SOTHERAN & CO., 140, STRAND, W.C., and 43, PICCADILLY, W. 



Mathematics, continued : — 

 156S6 APOLLONIUS Pergeeus : Treatise on Conic Sections, edited in Modern Notation, with 

 Introductions, including an Essay on the earlier History of the Subject, by Sir Thomas Little 

 Heath, f.r.s., with frontispiece, 8vo. (pp. 424), cl. (SCARCE), 155 Univ. Press, Cambridge, 1896 



15687 APPELL (Paul ijmile, de rinstitvt) Elements d'ANALYSE Mathematique k I'Usage des 

 Ingenieurs et des Physiciens ; 2® Edition ; with 229 diagrams, large 8vo. handsomely bound in hf. 

 pigskin, cl. sides, \2s (p. F. 24 nett sewn) 1905 



15688 , et ]fedouard GOURSAT, de la Sorbonne : Theorie des FONCTIONS Algebriques 



et de leurs Integrales: Etude des Fonctions analytiques sur une Surface de Riemann 

 [avec Preface de Ch. Hermite] ; with 91 diagrams, roy. 8vo. handsomely bound in hf. pigskin, 

 uncut, t. e. g. {fine copy), \Qs Qd (p. F. 16 nett sewn) 1895 



15689 ARNOUX (Gabriel, ancien Officier de Marine) Arithmetique Graphique : Introduction 

 a 1 Etude des Fonctions Arithmetiques ; with diagrams, roy. 8vo. buckram, 5s (p. F. 7.50 

 nett sewn) 1906 



15690 Another Copy, also : Les Espaces Arithmetiques Hypermagiques ; with coloured 



folding plate and diagrams, 2 vols. roy. 8vo. in 1, handsomely bound in hf. black morocco, cl. sides, 

 uncut, t. e. g. {as good as new), 9s (p. F. 13.50 nett sewn) 1894-1906 



15691 ASKWITH (Edward Harrison, Trinity Coll., Cantab.; Vicar of Kirkhy Lonsdale) The 

 Analytical Geometry of the Conic Sections, ivith 76 diagrams, 8vo. buckram, 5s (p. 7* 6c? 

 nett) 1908 



15692 Course of Pure Geometry, with diagrams, postSvo. buckram, 2s Qd (p. 5s) 



Univ. Press, Cambridge, 1903 



15693 ATKINSON (Capt. E. H. de V., r.e.) Text-Book of Practical Solid Geometry, etc.; 

 2nd Edition, revised by Major B. R. Ward, r.e., ivith 21 folding plates, 8vo. buckram, 4s 

 (p. 7s 6d) 1901 



15694 AUBERT (P.), et G. PAPELIER : Exercices d'ALGE:BRE, d'ANALYSE et de Trigono- 

 metrie; with diagrams, 2 vols. 8vo. in 1, handsomely bound in hf. pigskin, cl. sides, 8s (p. F. 12 

 nett sewn) * 1908-10 



15695 Another Copy, 2 vols, in 1, hf black morocco neat, cl. sides, t. e. g. {as good as new), 



8s 6c^ 



15696 AUTENHEIMER (Fr., Winterthur) Elementarbuch der Differential- und In- 

 tegralrechnung, mit zahlreichen Anwendungen ; 5. verbesserte Auflage, bearbeitet von 

 Alfred Donadt ; with 156 diagrams, 8vo. handsomely bound in hf. pigskin, cl. sides, 6s 

 (p. M. 9 sewn) Leipzig, 1901 



15697 Sechste [neueste] Auflage, bearbeitet von Alfred Donadt ; with 161 diagrams, 



8vo. handsomely bound in hf. pigskin, cl. sides, Is (p. M. 9 sewn) ibidem, 1910 



15698 Another Copy, half black morocco neat, cl. sides {as good as new). Is 6d 



15699 BABBAGE (Charles, f.r.s.) Examination of some Questions connected with Games of 

 Chance, 4to. (pp. 23), sewn {name cut off title), 3s 6d Edin., 1820 



Written about the time when Mr. Babbage was first setting to work on the Difference Engine. 



15700 BACHELIER (Louis) Calcul des Probabilites, Tome ler [seul paru], 4to. half black 

 morocco neat, cl. sides, uncut, t. e. g. {fine copy), 16s 6c? (p. F. 25 nett sewn) 1912 



' Cet onvrage n'a pas senlement pour but d'exposer, avec quelques developpeinents, I'enpemble des connaissances 

 acquises dans le passe sur le calcul des probabilites, il a aussi pour objet de faire connaitre de nouvelles methodes et de 

 nouveaux lesultats qui representent, a certains points de vue, une transformation complete de oe calcul.' — Preface. 



15701 BACHMANN (Paul ; Univ. Breslau) Grundlehren der neueren Zahlentheorie ; with 

 10 diagrams, large cr. 8vo. cl., 4s 6o? (p. M. 6.50) Leipzig, 1907 



15702 Die Lehre von der Kreistheilung und ihre Beziehungen zur Zahlentheorie: 



akademische Vorlesungen ; original impression, with folding plate and diagrams, 8vo. 

 buckram {scarce). Is 6rf ibidem, 1872 



15703 Niedere Zahlentheorie, 2 vols. 8vo. in 1, handsomely bound in hf. black morocco, 



cl. sides {fine copy), £1. 2s Qd (p. M. 30 sewn) ib., 1902-10 



15704 Zahlentheorie : Versuch einer Gesaramtdarstellung dieser Wissenschaft in ihren 



Haupttheilen, 1. —IV. Teil ; original impressions throughout, with folding plate {linen- 

 mounted), 4 vols. 8vo. in 2, hf maroon morocco neat, cl. sides {fine copy), £1. 12s Qd (p. M. 43.40' 

 sewn) ib., 1872-98 



One of the standard works on the theory of numbers. 



Contents :— I. Elemente der Zahlentheorie: 11. Analytische Zahlentheorie: IIF. Lehre von der Kreisteilung : IV. 

 Arithinetik quadratischer Formen, I. Abteilung. Vol. I and III, which can now be obtained at the publisher's only in au 

 inferior anastatic reprint, are in the above copy in the original impression. 



15705 BALL (Walter William Rouse, Fellow of Trinity) Mathematical Recreations and Pro- 

 blems of Past and Present Times, with diagrams, post 8vo. cl., 3s Qd (p. 7s nett) 1892 



157C6 Fourth Edition, with illustrations, cr. 8vo. buckram. As 6d (p. 7s Qd nett) 1905 



15707 Fifth [latest] Edition [enlarged], with illustrations, large post 8vo. buckram, 6s 



(p. 8s 6<^ nett) * 1911 



With interesting chapters on Magic Squares, Astrology, Hyper-Space, and the Constitution of Matter. 



