HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 227 



4473 SMYTH (Sir Warington Wilkinson, F.R.S.) RUDIMENTARY TREATISE on COAL and COAL 

 MINING, 7th Ed., enlarged, with 48 woodcuts, fcap. 8vo. cl. boards, 2s 1890 



4474 SMYTH (Adml. William Henry, F.R.S.) JKDES HARTWELLIANA;, or Notices of the Manor 

 and Mansion of Hartwell, with 12 fine 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 inscr., Is Qd 



privately 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 Viryinis, 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, with 

 numerous woodcuts, 2 thick vols. 8vo. hf. calf (SCARCE), 155 1844 



CONTENTS : V. I. Prolegomena; V. II. The Bedford Catalogue. ' Containing 5SO double stars, 20 Unary systems, 

 SO triple and multiple stars, and 170 clusters and nebulae, observed at Bedford ; reduced to Jan. 1, 1840. A most inter- 

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

 is unrivalled.' G. F. Chambers, F R.A.S. 



4476 - SECOND EDITION, revised, condensed, and greatly enlarged l>y GEORGE F. CHAMBERS, 

 F.R.A.s., with coloured front. , and 51 illustrations, thick Svo. cl., uncut, t. e. g., 6s (p. 1. Is) 



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 equality 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 vEdes Hartwellianze, with 4 fine plates (one coloured), fs., map, and numerous woodcuts, roy. 

 4to. cl., Ss Qd 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, 5s 1848 



4479 -- The SAILOR'S WoRD-BqoK : an Alphabetical Digest of Nautical Terras, 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 Svo. cl., 

 12s 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. Svo. cl., 5s privately printed, 1864 



4481 - A LARGE PAPER COPY, roy. 4to. cl., g. e., 7s Gd 



Dedicated to* John Lee, Q.C., F.R.S. . of Hai'twell House. 



4482 SNELL (Albion T., M.I.C.E.) ELECTRIC MOTIVE POWER : the Transmission and Distribution 

 of Electric Power by Continuous and Alternate Currents, with its Application to MINING WORK ; 

 2nd Ed., with 224 illustrations, Svo. cl., 4s (p. 10s Qd) [1899] 



IV, 



4483 SNELL van ROYEN (Willekrord) DOCTRINE TRIANGULORUM CANONIC^: Libri IV, post 

 mortem Auctoris in lucem editi a MARTINO HORTENSIO, qui istis PROBLEMATUM GEOD^ETICORUM 

 et SPII/ERICORUM TRACTACTUS singulos adjunxit; with numerous diagrams: CANON TRIANGUL- 

 ORUM, ex accuratissimis Operis Palatini Tabulis expressus 2 vols. 12mo. in 1, old calf gilt, with 

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

 (RARE), 1. 5* Lugd. Batav., 1627-6 



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

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



4484 - - TIPHYS BATAVUS, sive HISTIODROMICE, de Navium Cursibus, et Re Navali [accedunt 

 TABULJE CANONKLE PARALLELORUM et CANONES LOXODROMICI] ; with 3 fine copperplates, and 

 diagrams, sm. 4to.fine copy in old hf. vellum, ivith Lord Stanhope's bookplate (RARE), 1. Is 



ibid., ex off. ELZEVIRIANA, 1624 



A treatise on navigation (' plus savant et plus mathematique que pratique ' Montucla), containing illustrations of 

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

 works of STEVINUS (q. v. post). 



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

 Ed., with numerous diagrams, Svo. boards, 3s Qd Cambridge, 1845 



4486 - - The ELEMENTS of PLANE and SPHERICAL TRIGONOMETRY, with the Construction and 

 Use of LOGARITHMIC TABLES, 3rd Ed., diagrams, Svo. cl., 2s Qd ib., 1837 



4487 - FIFTH EDITION [condensed], diagrams, Svo. boards, "2s Qd ib., 1840 



4488 - SEVENTH EDITION, diagrams, 8vo. boards, 3s ib., 1848 



- FINAL EDITION, diagrams, cr. Svo. cl., 3s (p. 7s Qd) 1852, or '63 



4490 SNYDEB (Carl) The WORLD MACHINE: the First Phase : the COSMIC MECHANISM, illustrated, 

 large Svo. cl., Is (sells 9s nett) 1907 



Largely a history of astronomy. 



4491 SOAVE (Francesco, C.R.S.) ELEMENTI d'ARITMETICA : Trattato il piii chiaro precise e facile 

 onde imparare 1'Aritmetica anche senza la voce del Maestro, 3 vols. 12mo. boards, uncut 

 (rare), 8s Qd Veiifzia, 1796-7 



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

 of the Sotield Italians. The above work, containing much commercial arithmetic was unknown to Poggcndorff, nor had 

 Prof, de Morgan a copy. 



4492 SOCIETE CHIMIOTE de PARIS, CONFERENCES faites h, la, 1887-1892, par HENRI MOISSAN, 

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

 rnont, Guye, etc. etc. ; with diagrams, 2 vols. Svo. sewn (scarce), 10s 1889-92 



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

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



