64 HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 



1247 EULER (Leonhard) ELEMENS d'ALGEBRE, traduits de 1'Allemand [par DANIEL BERNOULLI], 

 avec Notes et Additions [par JOSEPH Louis LAGRANGE], 2 vols. 8vo. contemporary French calf 

 gilt, 10s Qd 1774 



FIRST FRENCH EDITION. ' The first volume treats of determinate algebra. This contains one of the earliest attempts to 

 place the fundamental processes on a scientific basis. This work also includes the proof of the binomial theorem for an 

 unrestricted index . . . The second volume treats of indeterminate or Diophantine algebra. This contains the solution of 

 some of the problems proposed by Fennat, which had hitherto remained unsolved.' IV. W. R. BciH. 



1248 - ELEMENTS of ALGEBRA, trans, from the French [by FRANCIS HORNER, M.P.], with the 

 Notes of DANIEL BERNOULLI, the Additions of J. L. LAGRANGE, Original Notes, Life, etc. [by 

 F. HORNER], with bust-portrait by WILLIAM BLAKE (foxed), 2 vols. 8vo. old calf, 12s 1797 



1249 ANOTHER COPY, old calf, cL backs (wanting the portrait], 9-9 



FIRST E MULISH EDITION. 



1250 FOURTH EDITION, carefully revised and corrected, by JOHN HEWLETT, B.D., 8vo. hf. 



morocco gilt, 5s 1828 



' Meritorious as one of the earliest attempts to put the fundamental processes on a sound basis.' Prof. Cajori. 



1251 INSTITUTIONES CALCULI DIFFERENTIALS, cum ejus Usu in Analysi Finitorum ac 



Doctrina Serierum, 2 vols. 4to. boards, uncut, 1. 10s Ticini, 1787 



SECOND EDITION, preferable to the first of 1755, being enlarged by FREDERICO SPERONI from MS. notes by the author. 

 ' The first text-book on the differential calculus which has any claim to be regarded as complete, and it may be said that 

 many modern treatises on the subject are based on it.' W. W. R. Hall. 



1252 -9 INSTITUTIONES CALCULI INTEGRALIS, in quo Methodus Integrand! a primis principiis 



usque ad Integrationem ^Equationum Differentialium priini gradus pertractatur, cum Supple- 

 ment; with 3 plates, 4 vols. 4to. old hf. russia (Supplement sewn), 2. Petropoli, 1768-1845 



1253 EDITIO TERTIA [ULTIMA] ; with 3 plates, 4 vols. 4to. cl. (sound copy), 2. 5s ib., 1824-45 



' They were the most complete and accurate works on the calculus at that time, and contained not only a full summary 

 of everything then known on this subject, but also the /Sand y Functions, and other original investigations.' Prof. Cajori. 



1254 - - INTRODUCTIO in ANALYSIN INFINITORUM, Editio nova ; with plates, 2 vols. 4to. in 1, hf. 

 cl., uncut, 12s Lugduni, 1797 



'A work that caused a revolution in analytical mathematics, a subject which had hitherto never been presented in 

 so general and systematic manner.' Prof. Cajori. 



1255 MECHANICA, sive MOTUS SCIENTIA analytice exposita ; with 32 plates, 2 vols. 4to. hf. 



calf, 12s Qd Petropoli, 1736 



The first work which applied analysis to the study of mechanics. ' He worked out the theory of the rotation of a 

 body round a fixed point, established the general equations of motion of a free body, and the general equation of 

 hydrodynamics. He solved an immense number and variety of mechanical problems which arose in his mind on all 

 occasions.' Prof. Cajori. 



1256 METHODUS INVENIENDI LINEAS CURVAS Maximi Minimive proprietate gandentes, sive 



Solutio Problematis Isoperimetrici ; with folding plates, 4to. old hf. mottled calf extra, 10s Qd 



Lausannw, 1744 



'This work, displaying an amount of mathematical genius seldom rivalled, contained his researches on the calculus 

 of variations (a subject afterwards improved by Lagrange), to the invention of which Euler was led by the study of 

 isoperimetrical curves, the brachiostrochone in a resisting medium, and the theory of geodesies '. Prof. Cajori. 



NEW PRINCIPLES of GUNNERY v. BROWN, ante. 



1257 SCIENTIA NAVALIS, seu Tractatus de Constrnendis et Dirigendis Navibus; with 65 



folding plates, 2 vols. 4to. contemporary hf. calf, 1. Is Petropoli, 1749 



This work first expresses mathematically the resistance meeting a ship on its path through the water. 



1258 THEORIA MOTUUM LUN^, nova Methodo pertractata, cum TABULIS ASTRONOMICIS, 



unde ad quod vis tempus Loca Lunte expedite computari possunt ; with plate, 4to. old hf. calf, 

 16s Qd ibidem, 1772 



' He was one of the first to take up with success the theory of the moon's motion by giving approximate solutions 

 to the problem of three bodies. He laid a sound basis for the calculation of tables of the moon. The researches on the 

 moon's motion, which captured two prizes, were carried on while he was blind, with the assistance of his sons and two of 

 his pupils '.Prof. Cajori. 



1259 THEORIA MOTUUM PLANETARUM et COMETARUM, continens Method um facilem ex 



aliquot Observationibus Orbitas cum Planetarnm turn Cometarum determinandi, etc., etc. ; with 

 plates, 4to. boards, Is Qd Berolini [1744] 



1260 EVANS (Sir Frederick John Owen, F.R.S.) On the PRESENT STATE of our KNOWLEDGE 

 respecting the MAGNETISM of IRON SHIPS, and the Treatment of their COMPASSES; \vith the 

 Magnetism of Iron and Ironclad Ships, plates, etc., Svo. cl., 3s 1872 



1261 , and Archibald SMITH, F.R.S. : ADMIRALTY MANUAL for ASCERTAINING and 



APPLYING the DEVIATIONS of the COMPASS caused by the IRON in a SHIP, first edition, with 

 plates and charts, roy. Svo. cl. boards, with auto, of Archibald Smith, F.R.S., on flyleaf , 5s 1862 



1262 SECOND EDITION [enlarged], with 6 plates and 3 charts, roy. Svo. cl. boards, 5s 1863 



This edition has ' History and Present State of the Deviation of the Compass,' by A. Smith (pp. 17). 



1263 THIRD [LAST] EDITION [greatly enlarged], with 6 plates and 3 charts, roy. Svo. cl. boards, 



7s Qd 1869 



' His most important work. It has become a standard text-book, having been translated and adopted by all the great 

 maritime nations.'' Prof. W. J. Harrison. 



1264 EVANS iThomas J.), and W. W. F. PULLEN : TREATISE on PRACTICAL PLANE and 

 SOLID GEOMETRY, numerous illustrations, Svo. cl., 3s Qd (p. 9s) 1897 



1265 EVERETT (Joseph David, F.R.S.) ILLUSTRATIONS of the C. G.S. SYSTEM of UNITS, with 

 Tables of Physical Constants, cr. 8vo. cl., 2s Qd (p. 5*) 1891 



1266 - VIBRATORY MOTION and SOUND, 4 plates and 48 woodcuts, Svo. cl. (out of print), 4s 1882 



4 The first English treatise dealing with vibratory motion as a special and separate subject.' Athenaeum, 



1267 EVERTS (A., Jonkheer) Het ELECTRO-MAGNETISMUS TCEGI.PAST op de Vervaardiging van 

 TlJDWUZERS of UURWERKEN ; with 2 folding plates, iinpl. Svo. sewn, 3s Qd 



niet in den hand el, 's-Hayc, 1872 



