HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 427 



8373 GERHARDT (C. J.) GESCHICHTE der MATHEMATIK in DEUTSCHLAND, 8vo. sewn (scarce), 10s Qd 



Miinchen, 1877 

 A valuable work very largely quoted by Professor Cantor in his ' Vorlesungen iiber Geschichte der Mathematik.' 



8374 GEBLING (Christian Ludwig ; Univ. Marburg) Die POTHENOTSCHE AUFGABE in practischer 

 Beziehung dargestellt ; with plate, 8vo. (pp. 55), sewn, 2s Marburg, 1840 



8375 GERRITS (G. C.) BEPALING van PX-LiJNEN bij BINAIRE MENGSELS volgens de Methode van 

 het Brekend Vermogen; illustrated, sq. 8vo. sewn, '2s [Amsterdam, c. 1905] 



8376 GHALIGAI (Francesco, Fiorentind) PRATICA d' ARITHMETIC A, nuovamente ri vista, e con 

 somma Diligenza ristampata ; with vignette on title and last L, sm. 4to. Italian white vellum, 

 (FINE COPY) ; RARE, 1. 5s Firenze, i Giunti, 1552 



8377 ANOTHER COPY, sewn, 1. Is 



' C'est surtout comme repertoire historique que cet ouvrage acquiert de 1'importance. Moins diffus que celui de Pacioli, 

 il a dft avoir plus d'influence sur 1'etude des math^matiques. C'est un resume fort bien fait de tout ce qu'on savait alors. 

 II se distingue sous ce rapport de tous les traites precedents.' Libri. 



The above edition was unknown to Prof, de Morgan. 



8378 GHEBELINO (Stefano, Bresciano) TAVOLE BREVISSIME ARITHMETICHE, con lequali ciascuno 

 agevolissimamente potra far' in un Tratto quasi ogni Sorte de CONTI ; with woodcut title and 

 arms, sm. 4to. sewn (title and a few II. wormed, and 2 II. holed) ; VERY RARE, 1. 15s 



[col. :~\ Brescia, Vine, di Sabbio, 1568 



'Eunodei primi esempi di tavole di conti fatti.' RiccardL It was quite unknown to Prof, de Morgan, and other 

 bibliographers, nor had M. Libri bought or stolen a copy. 



8379 GHERARDI (Silvestro) NOVA EXPERIMENT A de SPECIOSA ATTRACTIONS quae per Venaiu 

 Fluidam erumpentem ex Foramine Normali Piano Circunidato ht in Discum illi directe nee 

 procul oppositum ; impl. 4to. (pp. 23), sewn, 4s Bononiae, 1841 



GHETALDI (Marino) v. APOLLONIUS, No. 5800, ante. 



8380 GHIJBEN (J. Badon) VERHANDELING over het THEOREM A VAN STURM, 8vo. (pp. 38), sewn, 

 2s z. p. [c. 1836] 



8381 GHISILIERI (Antonio Marchese ; Bp. of Azoto) II PRONOSTICO AVVERATO, e posto 

 ora avanti il suo Libro intitolato PREDIZIONE della COMETA 1736, con varie Riflessioni sopra le 

 Comete passate, e future, ove si tratto il loro Sistema, e Calcolo ; with engraved title, and 11 

 folding copperplates, 2 vols. sm. 4to. in 1, boards (fine copy), 8s Qd Bologna, 1737 



The comet so learnedly predicted never made its appearance. 



8382 GIBB (David) The MOTION of NEPTUNE'S SATELLITE, with diagrams, roy. 8vo. (pp. 20), 

 sewn, Is Edin., 1909 



8383 GIBERNE (Agnes) The OCEAN of AIR, with Preface by CHARLES PRITCHARD, pr., F.R.S., 

 with 16 plates, post 8vo. cl., 2s (p. 5s) 1890 



8384 SUN, MOON, and STARS ; with Preface by C. PRITCHARD, pr., F.R.S., with 16 coloured 



plates, post 8vo. cl., 2s (p. 5s) 1887 or '91 



8385 - The WORLD'S FOUNDATIONS, or Geology for Beginners, with 16 plates (some coloured), 



cr. 8vo. c.,2s(p. 5s) 1894 



8386 GIBON (Alexandre, Usine a Gaz a Arras) CHEMINS de FER: Apercu des divers Systemes, 8vo. 

 (pp. 63), sewn, 5s 1845 



Including the various attempts at the ' atmospheric ' railway. 



8387 GIBSON (Charles R., A.I.E.E.) ELECTRICITY of TO-DAY : its Work and Mysteries in non- 

 technical Language, with 24 plates, cr. 8vo. cl., 3s (p. 5s nett) 1907 



8388 GIBSON (George Alexander, Univ. Glasgow) ELEMENTARY TREATISE on the CALCULUS, 

 with Illustrations from Geometry, Mechanics, and Physics, diagrams, cr. 8vo. cl., 4s Qd (p. 7s Qd) 



1901 



8389 INTRODUCTION to the CALCULUS, based on Graphical Methods, with diagrams, cr. 8vo. 



cl., 2s (p. 3s Qd) 1904 



8390 GIBSON (J. Hamilton) TORSION-METERS, as applied to the Measurement of the Horse- 

 power of MARINE STEAM TURBINES, with 15 folding plates, and other illustrations, roy. 8vo. 

 sewn, 2s Newcastle-on Tune, 1908 



8391 GIESE (Johann Emmanuel Ferdinand) CHEMIE der PFLANZEN- und THIERKORPER in 

 pharmazeutischer Riicksicht, mehrentheils nach eigenen Erfahrungen bearbeitet und in einer 

 neuen naturgemassen Ordnung abgehandelt, 2 vols. 8vo. in 1, boards, 5s Leipzig, 181 1 



8392 GILBERT (Davies, P.R.S.) On the VIBRATIONS of HEAVY BODIES in CYCLOIDAL and in 

 CIRCULAR ARCHES, as compared with their Descents through Free Space ; including an Estimate 

 of the variable Circular Excess in Vibrations continually decreasing, with plate ; with Supplement 

 2 parts, Svo. (p. 22), sewn, 3s [1823] -5 



8393 GILBEY (Sir Walter) MODERN CARRIAGES, with 18 plates, Svo. cl., g. e., 2s 1905 



8394 GILLARD (D., of Hammersmith) A DESCRIPTION of the SURPRIZING PHENOMENA, or, GRAND 

 PRIMUM MOBILE of NATURE, LATELY DISCOVERED by, Svo. (pp. 10), sewn, 5s Hammersmith, 1804 



8395 GILLESPIE (William Mitchell, C.E.) MANUAL of the PRINCIPLES and PRACTICE of ROAD- 

 MAKING : the Location, Construction, and Improvement of Roads (Common, Macadam, Paved, 

 Plank, etc.), and Rail Roads; 10th Edition, with Addenda, by CADY STALEY, C.E., with 209 

 woodcuts, cr. Svo. hf. calf, 3s Qd (p. 12s Qd) New York, 1874 



8396 TREATISE on LAND-SURVEYING : the Theory developed from Five Elementary Principles, 



and the Practice with the Chain alone, the Compass, the Transit, the Theodolite, the Plane 

 Table, etc. [with Traverse Tables] , 400 illustrations and magnetic chart, Svo. hf. bound, 5s 

 (p. 1.1*) #.,1875 



8397 GILLOT (A.) CARBONISATION du Bois, et EMPLOI du COMBUSTIBLE dans la METALLURGIE du 

 FER ; with diagrams and 2 folding tables, roy. Svo. cl., Qs (p. F. 14 nett) [1873J 



