830 HENKY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 



Mathematics, cotitimied : — 



16556 SALMON (George, pr. ; f.r.s., Provost T. C. D.) Traite de Geometrie Analytique {Sec- 

 tions CoNiQUES), contenant un Expose des Metliodes les plus importantes de la Geometrie et de 

 I'Algebre modernes, traduit par H. Resal et V. Vaucheret ; with 124 diagrams, 8vo. hf. 

 morocco, 2s 6d 1870 



' Nous esperons que cet ouvrage ne tardera pas a devenir classique en France, oomme il Test dejiv en Angleterre.' — 

 Tradudeurs. 



16557 Analytische Geometrie der Kegelsciinitte, mit besonderer Beriicksichtigung der 



neueien Methoden, frei bearbeitet von Wilhelm Fiedler, 5. umgearbeitete Autlage; ivitk 

 numerous diagrams, 2 vols. 8vo. in 1, hf.. tnaroon morocco neat, cl. sides {nice copy), 9* (p. M. 16.80 

 sewn) Leipzig, 1887-8 



16558 Treatise on the Higher Plane Curves : a Sequel to ' Conic Sections ', 3id [last] 



Edition, with diagrams, 8vo. buckram, t. e. g. (VERY SCARCE), £2. 10s Dublin, 1879 



'Embodying the chief discoveries of its author.'— ^F. W. R. Ball. 



' A subject of which little was then known, and which was introduced to the ordinary student by Salmon's labours.' — 

 Abp. Bernard. 



' Salmon helped powerfully towards the spreading of a knowledge of the new algebraic and geometric methods by th& 

 publication of an excellent series of text-books.' — Prof. Cajori. 



' Upon these four treatises his fame as a mathematician rests. . . . Salmon's methods made little use of the calculus,, 

 or of the quaternion analysis invented by his contemporary, Sir W. R. Hamilton ; nor, again, did he ever handle the 

 non-Euclidean geometry. His strength lay in his complete mastery of geometric and algebraic processes, and this,, 

 coupled with his indefatigable industry as a calculator, enabled him to produce original work of permanent value.' — 

 Abp. Bernard. 



The always striking fellowship of theology and mathematics has seldom had a greater example than in Dr. Salmon r 

 and the weight it lent him was a source of strength to the Irish Church throughout the throes of disestablishment 

 and reconstruction, as well as to Christian evidence. 



16559 SANDEN (Horst v., Univ. Gottingen) Praktische ANALYSIS ; with ^^ diagrams, post 8vo. 

 buckram, 3s Leipzig, 1914 



16560 SANTEBKE (S.) PsYCHOLOGiE du NoMBRE et les Operations Elementaires de I'Arith- 

 METiQUE, avec Preface par Pierre Janet, roy. 8vo. cl., 3s 1907 



16561 SAUERBECK (Paul) Einleitung in die analytische Geometrie der hoheren algebra- 

 ischen Kurven nach der Methode von Jean Paul de Gua de Malves : ein Beitrag zur 

 Kurvendiskussion ; with 76 diagrams, large 8vo. buckram, 6s (p. M. 8 sewn) Leipzig, 1902 



16562 SATJVAO-E (P.) Les LiEUX Geometriques en Geometrie Elementaire; withal diagrams^ 

 large post 8vo. buckram, 2s Qd 1895 



16563 SCHAFHEITLIN (Paul) Die Theorie der Besselschkn FuNK-nONEN ; with folding plate^ 

 post 8vo. stiff wrapper, 2s Leipzig, 1908 



16564 SCHEFFERS (Georg Wilhelm; Prof. Projective Geometry/, Charlottenburg) Anwendung 

 der Differential- und Integralrechnung anf Geometrie ; with numerous illustrations, 

 2 vols, large 8vo. in 1, handsomely bound in hf crushed blue Levant morocco, cl. sides, uncut, 

 t. e. g. {fine copy), 15s (p. M. 23 sewn) Leipzig, 1901-2 



Ikhalt:— I. Einfiihrung in die Theorie der Curven in der Ebene und im Raume: II. Einfiihrung in die Theorie 

 der Fliichen. 



16565 Lehrbuch der Mathematik fiir Studierende der Naturwissensnhaften und Technik : 



Einfiihrung in die Differential- und Integralrechnung und in die analytische Geometrie, 2. [neueste] 

 verbesserte Aufiage ; with 413 illustrations, 8vo. (pp. 740), hf. black morocco neat, cl. sides, t. e. g. 

 {as good as new), 14s (p. M. 18 sewn) ibidem, 1911 



16566 Another Copy, handsomely bound in hf. pigskin, cl. sides, uncut y t. e. g., 13s Gd 



16567 SCHEFFLER (Hermann) Die magischen Figuren : allgemeine Losung und Erweiterung 

 eines aus dem Alterthume stanimenden Problems ; ivith 2 plates, 8vo. sewn, 2s Leipzig, 1882 



16568 Die polydimensionalen Grossen und die vollkommenen Primzahlen : toith 42 



diagrams, 8vo. buckram, 3s (p. M. 5.60 sewn) Braunschweig, 1880 



a German should have been above such a barbarism as ' polydimensional '. 



16569 SCHELL (Wilhelm, Technische Hochschule, Karlsruhe) Allgemeine Theorie der Curven 

 doppelter Krummung in rein geometrischer Darstellung, 2. [neueste] erweiterte Aufiage; 

 with 58 diagrams, 8vo. buckram, 4s (p. M. 5 sewn) Leipzig, 1898 



16570 SCHENDEL (Leopold) Elemente der analytischen Geometrie der Ebene in trilinearen 

 Coordinaten, large post 8vo. cl., 2s Qd (p. M. 6 sewn) Jena, 1874 



16571 Grundzuge der Algebra nach Grassmann'schen Prinzipien, 8vo. buckram, 2s 



Halle, 1885 



16572 SGHLEGEL (Victor) System der Raumlehre, nach den Priucipien der Grassmann'schen 

 AUSDEHNUNGSLEHRE und als Einleitung in dieselbe ; with diagrams, 2 vols. 8vo. in 1, buckram, 

 4s (p. M. 11 sewn) Leipzig, 1872-5 



16573 Another Copy, 2 vols, in 1, handsomely bound in hf. black ynorocco, cl. sides {nice 



copy), 5s 



16574 Theorie der homogenen zusammengesetzten Raumgebilde ; with 9 plates, roy.4to. 



buckram, uncut, t. e. g., 6s (p. M. 12.50 sewn) Halle, 1883 



