228 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37, PICCADILLY. W. 



4t93 SNOW (Robert) Observations of the Aurora Borealis, from September 1834 to September 

 1839, ivUh diagrams, post 8vo. (pp. 17), hf. calf, Ss 6d privately printed, 1842 



4494 SOCIETY of ARTS, The JOURNAL of the, and the Institutions in Union; from 

 Nov., 1857 to Nov., 1906 (Vols. VI-LIV), copiously illustrated with thousands of 

 woodcuts, etc., 49 v. : Index to vv. XXI-XXX— 50 vols. roy. 8vo., the first 25 vv. hf. 

 calf gilt, and the rest in hf. roan gilt (fine set), £15. 155 1857-1906 



4495 . TRANSACTIONS of the SOCIETY instituted at London for the EN- 

 COURAGEMENT of ARTS, MANUFACTURES, and COMMERCE, with the Premiums 

 offered; COMPLETE from the beginning in 178S to 1833 (Vols. I-XLIX), with 

 portraits and numerous plates, 49 v. : Index to vv. I-XXV — 50 vols. 8vo., the first 33 vv. 

 in hf. russia gilt, and the rest in hoards or sewn (very sound set), £12. 12^ 1783-1833 



Two very important publications, especially in connexion with applied science ; they contain valuable contributions by 

 some of the foremost scientists of the time. The descriptions of inventions which were awarded prizes by the Society are 

 of special importance. The Journal forms the continuation of the Transactions. 



4498 SOETEN (Mattheus) Algemeene Manier tot het Maaken van Zonnewysers op allerley 

 effen Vlakken . . . voor alle persoonen die met een Passer gewoon zyn oni te gaan, enz. ; with 

 26 plates, 12mo. old vellum {rare), 12s 6d Amsterdam, 1719 



Unknown to Poggendorff, Brunet, Graesse, and others. 



4497 SOHNCKE (Ludwig Adolf, Univ. Halle) Bibliotheca Mathematica : Verzeichniss der 

 Bucher liber die gesammten Zweige der Mathematik, welclie in Deutschland und im Auslande 

 von 1830 his 1854 erschienen sind, mit Materienregister [vollendet von Wilhelm Engelmann], 

 8vo. sewn, 4* " Leipzig, 1854 



An international bibliography of mathematics, 1830-54. 



4498 SOLAR ECLIPSES (Total) of July 29, 1878, and January 11, 1880, Reports on the, issued 

 by the United States Naval Observatory, with numerous plates {some coloured), and 

 looodcuts, thick 4to. cl. {back torn), 15* Washington, 1880 



' The leading, and a truly amazing, characteristic of the phenomenon of the solar eclipse of 1S78 was formed by two vast, 

 faintly luminous vnngs of light, expanded on either side by the sun in the direction of the ecliptic. By far the most 

 striking observati<ms were made by Newcomb at Separation (Wyoming), and by Langley at the sumn)it of Pike's Peak [both 

 in the ab ire volume'], at an elevation of 14,100 feet above the sea. Never before had an eclipse been viewed from anything 

 approaching that altitude, or under so translucent a s^y.'— Agnes M. Chrke. 



4499 of May 28, 1900, and May 17, 1901 : Reduction Tables for Transit Circle 



Observations : Reduction Tables for Equatorial Observations: The Present Status of 

 the Use of Standard Time (forming Publications of the U.S. Naval Observatory, II. Series, 

 Vol. IV, pt. IV), with numerous plates, 4to. cl., 12s 6d ibidem, 1906 



4500 SOLLY (Edward, f.r s.) Syllabus of a Complete Course of Lectures on Chemistry, 8vo. 

 cl., 3s 1849 



4501 SOLSKI (Stanislaw, s.j.) Praxis Nova et Expeditissima Mensurandi Geometrije . . . sine 

 Usu Ordinario Regular proportionum . . . accesserunt dua? aliae praxes multo faciliores, si Tabulae 

 addantur gradus tixi, vel mobiles ; with numerous woodcuts and diagrams, 4to. old boards, lis 6d 



Cracovim, 1688 

 Very rare, and unknown to Poggendorff, Brunet, Graesse, etc. 



4502 SOMERSET (Edward Adolphus Seymour, 11th Dake of) Treatise in which the Ele- 

 mentary Properties of the Ellipse are deduced from the Properties of the Circle, and 

 Geometrically demonstrated, with diagrams, 8vo. calf extra, by Hay day, with the Duke's library 

 stamp on title, 5s 1842 



Probably the only mathematical treatise by a British Duke. 



' Given me by the Duke of Somerset July 10th, 1842 '.—Inscr. on flyleaf. 



4503 SOMERVILLE (Mary) On the Connexion of the Physical Sciences, 8th Ed., with bust- 

 portrait on steel, 5 plates, and diagrams, 12mo. cl., or, hf calf, Ss 6d 1849 



4504 Another Copy, calf extra {nice copy), 4s 6d 



4505 Ninth Edition, completely revised, with bust-portrait, 10 plates, and diagrams, post 



8vo. cl , or, hf calf 5s 1858 



4506 Another Copy, cl., with inscr. and quotation from ' Locksley Hall ' by Prof. Walter 



AV. Skeat, pr., dated Jan. 1860, Qs 



4507 Tenth [last] Edition, by Arabella B. Buckley, with portrait, woodcuts and dia- 

 grams, large post 8vo. cl., Qs Qd 1877 



'An able summary of research into physical phenomena. A sentence contain^d in it, pointing out that the perturba- 

 tions of Uranus might disclose the existence of an unseen planet, suggested, as Prof. Adams afterwards declared, the 

 calculations from which he deduced the orbit of Neptune '. — D. N. B. 



4508 Mechanism of the Heavens, 116 diagrams, thick 8vo. cl., uncut (scarce), £1. Is 1831 



4509 Another Copy, hf. calf {title mended), 15s 



' Unquestionably one of the most remarkable works that female intellect ever produced in any age or country.'— Sir 

 John Ilerschel (Edin. Rev.). 



4510 On Molecular and Microscopic Science, with plates and numerous woodcuts, 2 vols. 



post 8vo. cl., 7s Qd (p. £1. Is) ^ 1869 



' a summary of the most recent discoveries in chemistry and physics '.— D. N. B. It was written at the age of 87. 



4511 Physical Geography ; new Edition, thoroughly revised, with fine {not bust) portrait, 



aet. 68, by W. HoLL, 2 vols. 12mo. calf extra, Qs %d 1849 



4512 SOMOFF (Joseph, Univ. St. Petersburg) Kinematik, aus dem Russischen iibersetzt yon Alex- 

 ander ZIVVET ; with diagrams, 8vo. hf. maroon morocco neat {title stamped), 4« Leipzig, 1878 



