HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 463 



9170 HERING (Carl) PRACTICAL DIRECTIONS for WINDING MAGNETS for DYNAMOS, with diagrams, 



cr. Svo. cl. (o. p.], 2s 1887 



9171 HERMANN (Jakob) PHORONOMIA, sive de VIRIBUS et MOTIBUS CORPORUM SOLIDORUM et 

 FLUIDORUM ; with engraved title by Wandelaar, and 12 folding plates, 4to. contemporary vellum, 

 15s Amstelcedami, 1716 



The author's most important work, treating of the statics of solid and fluid bodies analytically, and more especially of 

 the brachistochrone in a resisting medium. It also contains a description of his thermometer, an improved form of 

 Amonton's air thermometer, which is not affected by changes in the pressure of the air. He was a disciple of Jacques 

 Bernoulli, and preceded Euler as professor of mathematics at St. Petersburg. 



9172 HERMBSTADT (Sigismund Friedrich ; Univ. Berlin) PHYSIKALISCH-CHEMISCHE VERSUCHE 

 und BEOBACHTUNGEN, BAND I, post Svo. sewn, 2s Berlin, 1786 



9173 SYSTEMATISCHER GRUNDRISS der ALLGEMEINEN EXPERIMENTALCHEMIE, 2. umgear- 



beitete Auflage, 2 vols. Svo. in 1, old hf. calf, 4s ibidem, 1800-1 



9174 - DRITTE [NEUESTE] vermehrte AUFLAGE, 5 vols. Svo. hf. calf neat, 8s 6d Basel, 1812-26 



9175 HERO Alexandrinus : SPIRITALIUM LIBER, a FREDERICO COMMANDING ex Greece, nuper in 

 Latinum con versus ; with numerous woodcuts, sm. 4to. sound and tall copy in old vellum (RARE), 

 1. 55 Urbini, 1575 



FIRST EDITION oj the first printed work of Hero of Alexandria, ' containing descriptions of about 100 small machines and 

 mechanical toys, many of which are very ingenious, including an account of a small stationary steam-engine, which is of 



the form now known as Avery's patent There is also an account of a double forcing pump to be used as a tire engine. 



... It is only recently that general attention has been directed to his discoveries, though Arago had alluded to them in 

 his eloge on Watt.' IT. W. R. Ball. 



9176 EDITIO ALTERA ; with numerous woodcuts, sm. 4to. sewn (some corners water -stained), 12s 



[ParisHs], Aeg. Gorbinus, 1583 



9177 Gli ARTIFITIOSI et CURIOSI MOTI SPIRIT ALI, tradotti da Gio. BATTISTA ALEOTTI ; 



aggiontovi dal medesimo IV Theorem! non men belli, et curiosi de' gli altrj, et il Modo con che 

 si fa artificiosamente salir un Canale d' Acqua viva, o morta, in cima d'ogn' alta Torre ; with 

 engraved title, and numerous woodcuts, sm. 4to. old vellum (blank corners of a few II. mended, 

 otherwise a sound and clean copy), RARE, 1. 1* Ferrara, V. Baldini, 1589 



9178 NUOVA EDIZIONE ; with engraved arms on title, and numerous woodcuts, sm. 4to. boards, 



or, old calf (sound copies), 15s Bologna, 1647 



Both the above editions include two original contributions by the translator ALEOTTI : 'Del Vacuo,' and ' Intorno al 

 non poter essere alcun vacuo, ne poter 1'Elemento dell' Aria starcompresso.' 



9L79 ., The PNEUMATICS of, from the original Greek, translated [by J. G. GREENWOOD], and 



edited by BENNET WOODCROFT, F.R.S., printed by C. Whittingham, with engraved title, and 

 numerous pretty ivoodcuts, cr. 4to. cl., uncut, 10s Qd 1851 



None of the inventions described were, according to the editor, made by Hero himself, but are merely 'a compilation 

 from the works of those who at that period were styled the ' ancient philosophers and mechanicians.' 



9180 De gli AUTOMATI, overo MACHINE SE MOVENTI, Libri II, tradotti dal Greco da BERNARD- 

 INO BALDI, Abbate di Guastalla, prima edizione; with engraved title, and numerous fine 

 engravings on copper and wood, sm. 4to. old Italian vellum (title and a few II. water-stained, 

 otherwise a sound and tall copy) ; RARE, 1. Is Venetia, Girol. Porro, 1589 



A translation of the Avrofjiara, different from the first mentioned work known as live ufiariica., and like it containing 

 descriptions of machines and mechanical contrivances. The above edition is remarkable for its fine engravings. 



' Bella e rara edizione.' Riccardi. 



9181 La CHIROBALISTE : Restitution et Traduction par A. J. H. VINCENT; with 4 folding 



plates, Svo. sewn, 3s 1866 



9182 : LETRONNE (Jean Antoine, de Vlnstitut) RECHERCHES critiques, historiques, et 



geographiques, sur les FRAGMENTS d'HERON d'ALEXANDRiE, ou du SYSTEME METRIQUE 

 EGYPTIEN ; Ouvrage posthume, revu et mis en Rapport avec les principales De"couvertes faites 

 depuis, par A. J. H. VINCENT ; with folding plate and map, and 10 tables, 4to. sewn, 10s Qd 



Imprimerie Nationale, 1851 



9183 HERO Mechanicus : LIBER de MACHINIS BELLICIS, necnon Liber de GEOD^siAa FRANCISCO 

 BAROCIO Patritio Veneto Latinitate donati, multis Mendis expurgati, et Figuris, ac Scholiis 

 illustrati ; with numerous large and fine ivoodcuts, chiefly of WAR ENGINES, sm. 4to. hf. bound 

 (somewhat water-stained) ; VERY RARE, 1. 12s Qd Venetiis, F. Franciscius Senensis, 1572 



' Rarissimo.' Riccardi. ( Curieux et interessant . . . On trouve dans sa geodesie la methode ingenieuse de mesurer la 

 surface d'un triangle rectiligne par la connoissance seule des trois c6tes, sans rechercher la perpendiculaire.' Montucla. 



9184 HERRICK (Albert Bledsoe), and Edward C. BOYNTON : AMERICAN ELECTRIC RAILWAY 

 PRACTICE, with 123 illustrations (including plates), Svo. cl, 7s Qd (p. 12s Qdnett) New York, 1907 



9185 HERRING (Robert) PAPER and PAPER MAKING, Ancient and Modern, with Introduction by 

 GEORGE CROLY, pr., LL.D., 5 plates, and 25 samples, Svo. cl. (scarce), 7s Qd 1855 



9186 HERSCHEL (Alexander Stewart ; F.R.S.) On the SHOOTING STARS of 1866-7, and the 

 probable Source of certain Luminous Meteors in the material Substance of the Zodiacal Light, 

 Svo. (pp. 15), sewn, Is Qd 1867 



9187 HERSCHEL (Caroline Lucretia) ACCOUNT of the DISCOVERY of a NEW COMET, with 

 Additional Observations by SIR WILLIAM HERSCHEL, 4to. (pp. 4), unbound, 2s Qd 1795 



Encke's comet before its identification. 



9188 , MEMOIR and CORRESPONDENCE of, by MRS. JOHN HERSCHEL, with 2 fine steel portraits 



(Miss Herschel, cet. 92, and Sir William), ana plate of the 10-foot Telescope, large post Svo. cl. 

 (scarce), 10s Qd 1876 



The only biography of one of the most extraordinary characters in the history of science. Arrived in England to take 

 over her brother Sir William's household, she spent her time between home duties and ' sweeping' the heavens, which 

 resulted in her discovery of 8 comets between 1786 and 1797. For her Catalogue of Zones of Sir W. Herschel's Star 

 Clusters and Nebulae she received the Gold Medal of the Astronomical Society. 



v. BENNET, no. 6125, ante. 



31 * 



