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



MATHEMATICS, continued : 



16556 SALMON (George, pr. ; F.R.S., Provost T. C. D.) TRAITE cle GEOMETRIE ANALYTIQUE (SEC- 

 TIONS CONIQUES), contenant un Expose des Methodes les plus importantes de la Geometric et de 

 1'Algebre modernes, traduit par H. RESAL et V. VAUCHERET ; with 124 diagrams, 8vo. hf. 

 morocco, Is Qd 1870 



' Nous esperons que cet ouvrage ne tardera pas a devenir classique en France, conime il Test deja en Augleterre.' 



Tradiicteurs. 



16557 ANALYTISCHE GEOMETRIE der KEGELSCFINITTE, mit besonderer Beriicksichtigung der 



neueren Methoden, frei bearbeitet von WILHELM FIEDLER, 5. umgearbeitete Auflage; with 

 numerous diagrams, 2 vols. 8vo. in 1, hf. maroon morocco neat, cL sides (nice copy), 9s (p. M. 16.80 

 sewn) Leipzig, 1887-8 



16558 TREATISE on the HIGHER PLANE CURVES: a Sequel to 'Conic Sections', 3rd [last] 



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



'Embodying the chief discoveries of its author.' W. 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 the 

 publication of an excellent series of text-books.' Prof. Cajuri. 



' 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, 

 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 30 diagrams, post 8vo. 

 buckram, 3s Leipzig, 1914 



16560 S ANTERRE (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 SAUVAGE (P.) Les LIEUX GEOMETRIQUES en GEOMETRIE ELEMENTAIRE ; with 47 diagrams, 

 large post 8vo. buckram, 2s Qd 1893 



16563 SCHAFHEITLIN (Paul) Die THEORIE der BESSELSCHEN FUNKTIONEN ; with folding plate, 

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



16564 SCHEFFERS (Georg Wilhelm; Prof. Protective Geometry, Charlottenburg) ANWENDUNG 

 der DIFFERENTIAL- und INTEGRALRECHNUNG auf 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 Ramne : II. Einfiihrung in die Theorie 

 der Fliichen. 



16565 LEHRBUCH der MATHEMATIK fiir Studierende der Naturwissenschaften und Technik : 



Einfiihrung in die Differential- und Integral rechnung und in dieanalytische Geometrie, 2. [neueste] 

 verbesserte Auflage ; 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, t. e. g., 13s Qd 



16567 SCHEFFLER (Hermann) Die MAGISCHEN FIG y REN : allgemeine Lb'sung und Erweiterung 

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



16568 - Die POLYDIMENSIONALEN GROSSEN und die VOLLKOMMENEN PRIMZAHLEN : with 42 

 diagrams, 8vo. buckram, 3s (p. M. 5.60 sewn) Braunschiveig , 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 geornetrischer Darstellung, 2. [neueste] erweiterte Auflage ; 

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



16570 SCHENDEL (Leopold) ELEMENTS 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 SCHLEGEL (Victor) SYSTEM der RAUMLEHRE, nach den Principien 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 morocco, 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 



