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



MATHEMATICS, continued : 



16065 GOURSAT (JjJdouard Jean Baptiste, de la Sorbonne) COURS d' ANALYSE MATHEMATIQUE ; 

 with numerous diagrams, 2 thick vols. roy. 8vo. handsomely bound in hf. pigskin, cl. sides, uncut, 

 t. e. g. (nice copy), 1. Is (p. F. 40 nett sewn) 1902-5 



16066 DEUXIEME [DERNIERE] EDITION, enticement refondue, Tomes I II ; with diagrams, 



2 vols. roy. 8vo. handsomely bound in hf. pigskin, cl. sides, uncut, t. e. g. (FINE COPY) ; v. I o. p., 

 1. 10* 1910-11 



CONTENTJ : I. Derivees et Differentielles, Integrates definies, Developpements en Series, Applications geometriques : 

 II. Theorie des Fonctions analytiques, Equations differentielles, Equations aux Derivees partielles du premier Ordre. 



46067 LECONS sur INTEGRATION des EQUATIONS aux DERIVEES PARTIELLES du PREMIER 



ORDRE, redige"es par C. BOURLET, roy. 8vo. hf. maroon morocco neat, cl. sides (nice copy), 10s 

 (p. F. 14 nett sewn) 1891 



16068 du SECOND ORDRE a DEUX VARIABLES INDEPENDANTES, 2 vols. roy. 8vo. 



in 1, hf. maroon morocco neat, cl. sides (nice copy), 12s (p. F. 18 nett sewn) 1896-8 



1CC69 GRAEFE (Friedrich) AUFGABEN und LEHRSATZE aus der ANALYTISCHEN GEOMETRIE, mit 

 den Auflbsungen und Beweisen, 4 vols. 8vo. in 2, buckram, 12s &d ^p. M. 18.20 sewn) 



Leipzig, 1885-90 

 INHALT : I. Punkt, gerade Linie, Kreis und Kegelschnitte : II. Flachen zweiten Grades. 



16070 VORLESUNGEN iiber die THEORIE de QUATERNIONEN, mit Anwendung auf die allgemeine 



Theorie der Fliichen und der Linien doppelter Kriimmung, 8vo. buckram, 3s ibidem, 1883 



16071 GRAINDORGE (Joseph, Univ. LIEGE) EXERCICES de CALCUL INTEGRAL ; 2 e Edition ; with 

 folding plate (linen-mounted), 8vo. buckram, 4s LIEGE, 1885 



16072 GRASSMANN (Hermann Gunther) Die AUSDEHNUNGSLEHRE von 1844, oder die LINEALE 

 AUSDEHNUNGSLEHRE ein NEUER ZwElG der MATHEMATIK dargestellt und durch Anwendungen 

 auf die iibrigen Zweige der Mathematik erlautert, 2. Auflage ; with plate, 8vo. hf. black calf neat 

 (nice copy), 5s Leipzig, 1878 



' His great classical work. Common to the Ausdehnungeslehre and to quaternions are geometric addition, the func- 

 tion of two vectors represented in quaternions by S a /3 and V /3, and the linear vector functions. The quaternion is 

 peculiar to Hamilton [5. v.~], while with Grassmann we find in addition to the algebra of vectors a geometrical algebra of 

 wide application, in which the point is the fundamental element.' Prof. Cajori. 



16073 Die AUSDEHNUNGSLEHRE von 1862, in Gemeinschaft mit HERMANN GRASSMANN JUN. 



herausgegeben von FRIEDRICH ENGEL ; with 37 diagrams, large 8vo. handsomely bound in hf. 

 black morocco, cl. sides, 12s (p. M. 16 sewn) ibidem, 1896 



' His researches on non-commutative algebras are contained in his A usdehnungslehre. This work has had great 

 influence, especially on the continent [vectorial analysis v. quaternions], where Grassmann' j methods have generally been 

 followed in preference to Sir W. R. Hamilton's '.W. W. R. Ball. 



a 6074 GRAY (Andrew, F.R.S., Prof. Natural Philosophy, Glasgow), and George Ballard 

 MATHEWS, F.R.S. : TREATISE on BESSEL FUNCTIONS, and their Applications to Physics, with 

 diagrams, 8vo. cl., 9s (p. 14s nett) 1895 



Including a special chapter on Steady Flow of Electricity or of Heat in Uniform Isotropic Media ; Propagation of 

 Electromagnetic Waves along Wires ; Diffraction of Light ; and at end a Bibliography. 



16075 GREENHILL (Sir Alfred George, F.R.S. ; R. A. Coll., Woolwich) DIFFERENTIAL and 

 INTEGRAL CALCULUS, with Applications, 3rd [latest] Edition, with 62 diagrams, thick post 8vo. 

 cl., 6s (p. 10s Qd) 1896 



' The chief novelties in the present work consist in carrying on the subjects of tho differential and integral calculus 

 together, and in the use of the hyperbolic functions in conjunction with the ordinary circular trigonometrical functions.' 

 Preface. 



16076 GREGORY (Duncan Farquharson ; first editor of the Cambridge Mathematical Journal) 

 EXAMPLES of the PROCESS of the DIFFERENTIAL and INTEGRAL CALCULUS ; 2nd [last] Edition, 

 by WILLIAM WALTON, with 4 folding plates, 8vo. hf. calf gilt, 6s 6d Cambridge, 1846 



16077 ANOTHER COPY, hf. black morocco neat, cl. sides, t. e. g. (fine copy), Is Qd 



'A work which produced a great change for the better in the Cambridge mathematical books. It is the first in which 

 constant use is made of the method known by the name of the separation of the symbols of operation, and the author has 

 enlivened its pages by occasionally introducing historical notices of the problems discussed.' D. N. B. 



16078 GRIMSEHL (B.) ANGEWANDTE POTENTIALTHEORIE in elementarer Behandlung, I. [einziger] 

 Band ; with 74 diagrams, large cr. 8vo. cl., 3s (p. M. 5) Leipzig, 1905 



16079 GROSS (E. J., Fellow of Caius) ALGEBRA, PART II, post 8vo. cl., 4s (p. 8s Qd) 1874 



A continuation of Hamblin Smith's Algebra, Part I. 



16080 GROSSMANN (Ludwig) Die MATHEMATIK im DIENSTE der NATIONALOKONOMIE, mi* 

 Hinweis auf die Theorie und Losung der irreductibelen transcendenten Gleichungen, mit neuen 

 Fundamenten fiir die Zinseszins- und Kentenrechnung und die Finanzwissenschaft im Allge- 

 meinen, 12 parts in 1 vol. roy. 8vo. handsomely bound in hf. crushed black morocco, cl. sides, 

 t. e. g., 1. 15s (p. M. 60 sewn) Wien, 1886-1900 



16081 GROSSMANN (Wilhelm) VERSICHERUNGSMATHEMATIK, large cr. 8vo. cl., 3s (p. 5s) 



Leipzig, 1902 



16082 GTTGLER (Bernhard, Technische Hochschule, Stuttgart) LEHRBUCH der DESKRIPTIVEN 

 GEOMETRIE, 4. [neueste] Auflage ; "with 23 diagrams, 8vo., with Atlas, containing 12 plates, 

 oblong 4 to. 2 vols., buckram, 4s Qd (p. M. 8 sewn) Stuttgart, 1880 



.16083 GUICHARD (Claude, de la Sorbonne) TRAITE de GEOMETRIE; with numerous diagrams, 

 2 vols. 8vo. in 1, hf. black morocco neat, cl. sides (as good as new), Is (p. F. 10 nett sewn) 1899-1903 



