HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 813 

 MATHEMATICS, continued : 



16179 JACKSON (J. Stuart, Gains Coll.) GEOMETRICAL CONIC SECTIONS : an Elementary Treatise 

 in which the Conic Sections are defined as the Plane Sections of a Cone, and treated by the 

 Method of Projections, with diagrams, cr. 8vo. cl. (o. p.), 3s 1872 



16180 JACQ,UIER (Edme) APPLICATION de la GEOMETRIE a la SCIENCE des NOMBRES : Interpreta- 

 tion des Theoremes et des Discussions de FAlgebre e"lementaire au Moyen de la Geometric des 

 Courbes ; with diagrams, large post 8vo. buckram, t. e. g., 3s 1888 



16181 JAHNKE (Eugen, Bergakademie, Berlin), und Fritz EMDE: FuNKTlONENTAFELN mit 

 Formeln und Kurven; with 53 diagrams, roy. 8vo. cl., 4s (p. M. 6) Leipzig, 1909 



16182 JANSON-DTJRVILLE (E., sous- Chef au Ministere des Finances] COURS de MATHEMATIQUES 

 appliquees aux OPERATIONS FINANCIERES, roy. 8vo. hf. brown morocco neat (SCARCE), 12s 1887 



'Bien que je me sois place a un point de vue absolument pratique, j'ai voulu que toutes les formules employees 

 fussent demontrees avant leurs applications.' Preface. 



16183 J A VARY (A.) TRAITE de GEOMETRIE DESCRIPTIVE, 4 e Edition; with numerous folding plates 

 and diagrams, 2 vols. 8vo. red buckram, 10s Qd (p. F. 17 nett sewn) 1893 



16184 PROJECTIONS COTEES et SURFACES TOPOGRAPHIQUES ; with 54 illustrations, roy. 8vo.cZ., 



uncut, IsQd [1903] 



A supplement to the above work. 



16185 JOACHIMSTHAL (Ferdinand, Univ. Breslau) ANWENDUNG der DIFFERENTIAL- und IN- 

 TEGRALRECHNUNG auf die allgemeine Theorie der FLACHEN und der LINIEN DOPPELTER KRUM- 

 MUNG ; 2. [letzte] Auflage von L. NATANI ; illustrated, 8vo. hf. cl. (o. p.), 4s (p. M. 6 sewn) 



Leipzig, 1881 



16186 JOHNSON ("W. E., King's Coll., Cantab.) TREATISE on TRIGONOMETRY, with diagrams, 

 cr. 8vo. cl., 4s (p. 8s Qd) 1889 



With final chapter on the interpretation of V - 1> as an introduction to the study of quaternions. 



16187 JOHNSON (William Woolsey, Prof. Mathematics, U. S. N. Academy) CURVE TRACING in 

 CARTESIAN COORDINATES, with diagrams, postSvo. cl., 2s Qd (p. 4s Qd nett) New York, 1895 



16188 The THEORY of ERRORS and METHOD of LEAST SQUARES, with diagrams, cr. 8vo 



buckram, 4s (p. 6s Qd nett) ibidem, 1912 



16189 TREATISE on ORDINARY and PARTIAL DIFFERENTIAL EQUATIONS, 3rd [latest] Edition, 



large cr. 8vo. buckram, 10s (p. 15s nett) ib., 1910 



Containing a development of the theta functions. 



1 A geometrical theory of singular solutions [of differential equations] resembling the one used by Cayley was 

 previously employed by W. W. Johnson.' Prof. Cajori. 



16190 JOLY (Charles Jasper, F.R.S., Royal Astronomer of Ireland) MANUAL of QUATERNIONS, 

 with diagrams, 8vo. cl., Is (p. 10s nett) 1905 



'Although this book may be regarded as introductory to the works of Hamilton \_q. v. ante~\, it may also to some extent 

 be considered as supplementing them.' Preface. 



16191 JORDAN (Camille, de VInstitut) COURS d'ANALYSE de 1'EcoLE POLYTECHNIQUE ; 2 e 

 Edition, entierement refondue ; with diagrams, 3 thick vols. 8vo. handsomely bound in hf. 

 maroon morocco, cl. sides, uncut, t. e. g. (as good as new), 1. 10s (p. F. 49 nett sewn) 1893-6 



16192 TOME III 6 : EQUATIONS DIFFERENTIELLES ; with diagrams, 8vo. hf. maroon morocco 



neat, cl. sides, uncut, t. e. g., 6s Qd (p. F. 17 nett sewn) 1887 



16193 TRAITE des SUBSTITUTIONS et des EQUATIONS ALGEBRIQUES, 4to. handsomely bound in 



hf. crushed maroon morocco, cl. sides, uncut, t. e. g. (FINE COPY) ; VERY SCARCE, 3. 17s Qd 1870 



A classic on the theory of substitutions, which was created by E. GALOIS. 



16194 , et Raymond FIEDLER : CONTRIBUTION a I'ETUDE des COURBES CONVEXES 



FERMEES et de certaines Courbes qui s'y rattachent ; with diagrams, large 8vo. buckram, 2s Qd 



1912 



16195 JOTTFFRET (Esprit; Lieut.-Col. d' Artillerie) MELANGES de GEOMETRIE k QUATRE 

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16196 TRAITE ELEMENTAIRE de GEOMETRIE & QUATRE DIMENSIONS, et Introduction a la 



Ge'onie'trie a n Dimensions; with 65 illustrations, roy. 8vo. handsomely bound in hf. black 

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16197 JUBE (Eugene) EXERCICES de GEOMETRIE ANALYTIQUE ; with 11 folding plates, 8vo. 

 buckram, 3s 1866 



16198 JTJRISCH (Etienne) QUESTIONS de GEOMETRIE DESCRIPTIVE ; ivith diagrams and numerous 

 folding plates, 8vo. cl., uncut, 5s (p. F. 9.50 nett sewn) 1883 



16199 KAISER (H.) EiNFUHRUNG in die NEUERE ANALYTISCHE und SYNTHETISCHE GEOMETRIE ; 

 with 3 plates, and 83 woodcuts, 8vo. boards, 2s Qd (p. M. 6.70) Wiesbaden, 1887 



16200 KARAGIANNIDES (A.) Die NICHTEUKLIDISCHE GEOMETRIE vom Alterthum bis zur 

 Gegenwart : eine historisch-kritische Studie, large post 8vo. (pp. 44), cl. (scarce), 3s Berlin, 1893 



16201 KARUP (W.) HANDBUCH der LEBENSVERSICHERUNG, 2. [neueste] Ausgabe [herausgegeben 

 von JOHANN KARUP] , 8vo. hf. maroon morocco neat, cl. sides, uncut, t. e. g. (as good as new), 

 6s Qd (p. M. 9 sewn) Leipzig, 1885 



16202 KEMPE (Sir Alfred Bray, F.R.S. ; Chancellor of the Diocese of London) MEMOIR on the 

 THEORY of MATHEMATICAL FORM [Phil. Trans.], with 72 diagrams, 4to. (pp. 70), cl., 4s 1886 



