HENRY SOTHERAN & CO., 140, STRAND, W.C, Ax\d 37, PICCADILLY, W. 227 



4473 SMYTH (Sir Warington Wilkinson, f.r.s.) Rudimentary Treatise on Coal and Coal 

 Mining, 7th Ed., enlarged, u-ith 48 icoodcuts, fcap. 8vo. cl. boards, 2s 1890 



4474 SMYTH (Adml. "William Henry, f.r.s ) .Edes Hartwellian.e, or Notices of the Manor 

 and Mansion of Hartwell, with 12 Jine plates by J. Basire, etc. {one of Encke's Comet coloured)^ 

 numerous woodcuts, and map, roy. 4to. cl. {back of cover damaged^ with author's insci-., Is 6d 



pi'ivately printed, 1851 

 Hartwell House, Buckinghamshire, was well known as giving an asylum to Louis XVIII. from the French Revolution 



till the Restoration, and afterwards devolved on John Lee, f.r.s., who built the observatory. 



Pp. 223-355 are devoted exclusively to Astronomy, and contain accounts of Encke's Comet, y Virgiiiis, Colours of 



Double Stars, Epps's Meridional Observations, and the origin and transit room ol Hartwell Observatory. 



4475 A Cycle of Celestial Objects ; observed, reduced, and discussed, first edition, ivith 



numerous woodcuts, 2 thick vols. 8vo. hf. calf {scarce), 15s 1844 



Contents :—V. I. Prolegomena; V. II. The Bedford Catalogue. 'Containing 5S0 double stars, 20 binary systems, 

 80 triple and multiple stars, and 170 clusters and nebulie, observed at Be Iford ; nnluoed to Jan. 1, 1840. A most inter- 

 esting, but very .scarce work. ... As a manual pointing out objects worth lookuig at, Adml. Smyth's Beclford Catalogue 

 is unri vailed. '—(/. F. Cnambers, F R.A.S. 



4476 Second Edition, revised, condensed, and greatly enlarged by George F. Chambers, 



F.R.A.S., with coloured front., and 51 illustrations, thick 8vo. cl., uncut, t. e. g., Qs (p. £1. \s) 



Clarendon Press, Oxford, 1881 

 Mr. G. F. Chambers is not only a veteran astronomer, but will be recognized at the present moment as a protagonist 

 for freedom and e(|uality in religious education. 



4477 Speculum Hartwellianum : the Cycle of Celestial Objects continued at the 



Hartwell Observatory to 1859, with Notice of Recent Discoveries, including Details from 

 the yEdes Hartwelliana?, with 4: fne plates {one coloured), fs., map, and numerous woodcuts, roy. 

 4to. cl., 85 6rf privately printed, 1860 



Including a chapter on meteorology. 



4478 Description of an Astrological Clock, belonging to the Society of Antiquaries, 



front, by Basire, and woodcuts, 4to. sewn, 5* 1848 



4479 The Sailor's Word-Book : an Alphaljetical Digest of Nautical Terms, including some 



more especially Military and Scientific, but useful to Seamen, with Archaisms of early Voyages, 

 etc. ; Best Edition, by Adml. Sir Edward Belcher, medallion portrait, thick 8vo. cl., 

 \2s Qd 1867 



4480 Sidereal Chromatics : a Reprint, with Additions, from the ' Bedford Cycle of Celestial 



Objects,' and its * Hartwell Continuation,' on the COLOURS of Multiple Stars, plate of colours, 

 impl. 8vo. cl., 5s pi'ivately jmnted, 1864 



4481 A Large Paper Copy, roy. 4to. cl., g. e., 7s 6d 



Dedicated to'John Lee, y.c, f.r.s., of Hartwell Hou.se. 



4482 SNELL (Albion T., m.i.c.e.) Electric Motive Power: the Transmission and Distribution 

 of Electric Power by Continuous and Alternate Currents, Avith its Application to Mining Work ; 

 '2nd Ed., with 224 illustrations, 8vo. cl., 4s (p. lOs 6d) [1899] 



4483 SNELL van ROYEN (Willebrord) Doctrine: Triangulorum Canonic;!-: Libri IV, post 

 mortem Auctoris in lucem editi a Martino Hortensio, qui istis Problematum GEOD.fiTicoRUM 

 et Spii/ERICORUM Tractactus sin^ulos adjunxit; with numerous diagrams: CANON Triangul- 

 orum, ex accuratissimis Operis Palatini Tabulis expressus— 2 vols. 12mo. in 1, old calf gilt, unth 

 auto, of John Kersey, mathematician (1616-90), and bookplate of Philip 2nd Earl Stanhope, F.R.S. 

 (RARE), £1. 5s Lvgd. Batav., 1627-6 



' In geodesy he laid down the principles for determining the length of the arc of a meridian from the nu-asurement of 

 any base line, and in spherical trigonometry he discovered the properties of the polar or supplemental triangle.'— 

 W. W. R. Hall. 



4484 TiPHYS Batavus, sive Histiodromice, de Navium Cursibus, et Re Navali [accedunt 



Tabulae Canonic^ Parallelorum et Canones Loxodromici] ; with 3 fine copperplates, and 

 diagrams, sm. ito.fne copy in old hf vellum, ivith Lord Stanhope's bookplate (RARE), £1. Is 



ibid., ex off. Elzevirian A, 1624 



A treatise on navigation ('plus savant et plus mathematique que pratique '—Afonti<c/a), containing illustrations of 

 the ships of the ancients. The author is well known as the discoverer of the law of refraction, aud the editor of the 

 works of St^vinus (q, ^, jtost). 



4485 SNOWBALL (John Charles, St. John's Coll., Cantab.) The Elements of Mechanics, 2nd 

 Ed., uith 7iumerous diagrams, 8vo. boards, 3s 6d Cambridge, 1845 



4486 The Elements of Plane and Spherical Trigonometry, with the Construction and 



Use of Logarithmic Tables, 3rd Ed., diagrams, 8vo. cl., 2s 6d ib., 1837 



4487 Fifth Edition [condensed], diagrams, 8vo. boards, '2s 6d ib., 1840 



4488 Seventh Edition, diagrams, 8vo. boards, 3s ib., 1848 



4489 Final Edition, diagrams, cr. 8vo. cl., 3s (p. 7* 60?) 1852, or '63 



4490 SNYDER (Carl) The World Machine: the First Phase : the CosMic Mechanism, illustrated, 

 large 8vo. cl.. Is (sells 9* nett) 1907 



Largely a history of astronomy. 



4491 SOAVE (Francesco, c.R.s.) Elementi d'ARiT.METiCA : Trattato il piii chiaro preciso e facile 

 onde iniparare TAritmetica anche senza la voce del Maestro, 3 vols. 12mo. boards, uncut 

 {rare), Ss 6rf Venrzia, 1796-7 



The author is perhaps best known for his NovelU morali, and Istituzhni di logica. He was one of the original members 

 of the Socield Italiana. The above work, containing much commercial arithmetic, was unknown to Poggendorff, nor had 

 Prof, de Morgan a copy. 



4492 SOCliJT^ CHIMiaTXE de PARIS, Conferences faites a la, 1887-1892, par Henri Moissan, 

 E. Mallard, A. Haller, Scheurer-Kestner, H. Millot, A. Combes, Maquenne, E. Duclaux, Franchi- 

 mont, Guye, etc. etc. ; with diagrams, 2 vols. 8vo. sewn (scarce), H)s 1889-92 



Containing important original contributions, including one on Fluor by Prof. Mois.sau, two on Camphor by A. Haller 

 and M. Cazeneuve, on Chlorine Gas by A. Millot, etc. etc. 



