HENRY SOTHERAN «S: CO., UO, STRAND, W.C., AND 43, PICCADILLY, W. 463 



9170 HERING (Carl) Practical Directions for Winding Magnets for Dynamos, ivith diagrams, 

 cr. 8vo. cl. {o. p.), 2s 1887 



9171 HERMANN (Jakob) Phoronomia, sive de Viribus et Motibus Corporum Solidorum et 

 Fluidorum ; tvith engraved title by Wandelaar, and 12 folding plates, 4to. contemporary vellum, 

 I5s Amstdmdami, 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 improvetl 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 matliematics at St. Petersburg. 



9172 HERMBSTADT (Sigismund Friedrich ; Univ. Berlin) Physikalisch-chemische Versuche 

 und Beobachtungen, Band I, post 8vo. sewn, 2s Berlin, 1786 



9173 Systematisciier Grundriss der allgemeinen Experimentalchemie, 2. umgear- 



beitete Auflage, 2 vols. 8vo. in I, old hf. calf, 4s ibidem, 1800-1 



9174 Dritte [neueste] vermehrte Auflage, 5 vols. Svo. hf. calf neat, 8s %d Basel, 1812-26 



9175 HERO Alexandrinus : Spiritalium Liber, a Frederico Commanding ex Groeco, nuper in 

 Latinum conversus ; vjith mimerous looodcuts, sm. 4to. sound and tall copy in old vellum (rare), 

 £1. 5s 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, wliich is of 



tlie form now known as Avery's patent There is also an account of a double forcing pum p to be usSd asa fire engine. 



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

 his eloge on Watt.'— IF. W. R. Ball. 



9176 Editio Altera ; with numerous woodcuts^ sra. 4to. setcn {some corners ivater- stained), 12s 



l^ParisiisI , Aeg. Gorbtnus, 1583 



9177 Gli Artifitiosi et Curiosi Moti Spirit ali, tradotti da Gio. Bat-tista Aleotti ; 



agofiontovi dal medesimo IV Theoremi non men belli, et curiosi de' gli altrj, et il Modo con die 

 si fa artificiosauiente salir un Canale d'Acqiia viva, 6 niorta, 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. Is Feirrara, 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 I'Elemento dell' Aria starcompresso.' 



9179 , The Pneumatics of, from the original Greek, translated [by J. G. Greenwood], and 



edited by Bennet Woodcroft, f.r.s., printed by C. Whittingham^ ivith engraved title, and 

 numerous pretty ivoodcuts, cr. 4to. cl., uncut, 10s 6d 1851 



None of the inventions described were, according to the editor, inade 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 vjood, 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 AuTOjjiaTa, difl'erent from the first mentioned work known as HvevfiariKd, and like it containing 

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

 ' Bella e rara edizione.' — Ricatrdi. 



9181 La Chirobaliste : Restitution et Traduction par A. J. H. Vincent; tvith ^folding 



plates, Svo. seion, 3s 1866 



9182 : Letronne (Jean Antoine, de Vlnstitut) Recuerches critiques, historiques, et 



geographiques, sur les Fragments d'HERON d'ALEXANDRiE, ou du SYSTi:ME Metrique 

 Egyptien ; Ouvrage posthume, revu et mis en Rapport avec les principales D^couvertes faites 

 depuis, par A. J. H. Vincent ; ivith folding plate and map, and 10 tables, 4to. sewn, 10s %d 



Imprimerie National e, 1851 



9183 HERO Mechanicus : Liber de Machinis Bellicis, necnon Liber de Geod.^isia Ji Francisco 

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

 illustrati ; with numerous large and fine icoodcuts, chiefly of war engines, sm. 4to. hf. bound 

 {somewhat loater-stained) ; very RARE, £1. 12s Qd Venetiis, F. Franciscius Senensis, 1572 



• Rarissimo,'— i^iccarrfi. ' Curieux et interessant ... On trouve dans sa geodesie la methode ingcnieuse de mesurer la 

 surface d'un triangle rectiligne par la conuoissance seule destrois c6tes, sans rechercher la perpendiculaire.'— 3/on.fucta. 



9184 HERRICK (Albert Bledsoe), and Edward 0. BOYNTON: American Electric Railway 

 Practice, w^ith 123 illustrations {including plates), 8vo. cl., 7s 6c? (p. 12s 6f/nett) Neiv 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, 8vo. cl. {scarce), Is 6d 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, 

 8vo. (pp. 15), sewn. Is 6d 1867 



9187 HERSCHEL (Caroline Lucretia) Account of the Discovery of a New Comet, with 

 Addiiional Observations by Sir William Herschel, 4to. (pp. 4), unbound, 2s 6d 1795 



Encke's comet before its identification. 



9188 , Memoir and Correspondence of, by Mrs. John Herschel, with 2 fine steel portraits 



{Miss Herschel, wt. 92, and Sir Williain), and plate of the 4Qfoot Telescope, large post Svo. cl. 

 (scarce), 10s 6o? 1876 



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

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

 resulteil in her discovery of 8 comets between 1786 and 1797. For her Catalogue of Zones of Sir W. Herschel s SUr 

 Clusters and Nebulae she received the G'dd Medal of the Astronomical Society. 



V. Bennet, no. 6125, ante. ^ 



31 



