744 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 



14843 SHEPARDSON (George Defrees, Univ.^ Minnesota) Electrical Catechism : an Intro- 

 ductory Treatise on Electricity and its Uses, ivith numerous illustrations, roy. 8vo. cl.. As (p. lOs) 



Neiv York, 1901 



14844 SIEMENS (Sir Charles William, f.r.s.) Scientific Works: a Collection of Papers and 

 Discussions, edited by E. F. Bamber, c.e., with numerous plates, 3 v., 1889 : Life, by William 

 Pole, f.r.s., with fine portrait by Stodart, and 7 plates, '88 — 4 vols. 8vo. hf. calf gilt, presentation 

 copy from North of England Inst, of Mining to Prof. A. S. Herschel, F.R.S., with letter signed by 

 Alexander Siemens to Dr. John Percy, F.R.S., £1. 5$ (p. £2. 12* in cl.) 1888-9 



Contents:— I. Heat and Metallurgy : II. Electricity, etrt. : III. Addresses aud Lectures. 



)4845 Vol. I only : Heat and Metallurgy, ivith 47 plates, 8vo. cl., 5s (p. 12*) 1889 



14846 Address read before Section G of the British Association, 19th August, 1869, 8vo. 



(pp. 16), sewn, Is 6d [1869] 



14847 On the Conservation of Solar Energy : a Collection of Papers and Discussions, with 



plate and woodcuts, 8vo. cl. {scarce), 5s 1883 



•He conceived that gaseous matters might be dissociated by the radiant solar energy and driven out by centrifugal 

 action at the sun's equator, to be drawn in towards the poles and subjected to intense combustion. The theory, though 

 well received at the time, has been neglected since '.—D. N. B. 



The author's ' regenerative theory ' was adversely criticised by Lord Kelvin. 



14848 On DETERMINING the Depth of the Sea without the Use of the Sounding-Line, and on 



a6 Attraction-Meter, with woodcut, 8vo. (pp. 8), sewn, 2s Qd 1876 



An account of theauthor's 'bathometer', which 'received the admiration of all qualified to appreciate its ingenuity.* 

 —D. N. B. 



14849 On Fuel : a Lecture delivered to the Operative Classes at Bradford on Behalf of the 



British Association, 20th Sept., 1873, 8vo. (pp. 31), sewn, with author's inscr., 25 1873 



14850 On the Regenerative Gas Furnace as applied to the Manufacture of Cast Steel, 



with woodcuts, 8vo. (pp. 32), unbound, with inscr. to Allen Thomson, F.R.S., 3s 6c? 1868 



An account of the well-known Siemens process for the manufacture of steel. 



14851 On Uniform Rotation, with 2 plates {water-stained), and 2 woodcuts, 4to. (pp. 14), 



seum, 3s 6d 1866 



14852 , The Life of, by William Pole, f.r.s., with fine portrait by Stodart, and 7 plates, 8vo. 



cl., 5s (p. 16s) 1888 



14853 Another Copy, crushed green morocco, tooled inside borders, g. e. {fine copy), with 



presentation inscr. to Sir Frederick Bramwell, F.R.S., from Lady Siemens, 8s 



'The most interesting book of the kind that we have read since Nasmyth's delightful autobiography.' — Sat. Rev. 



14854 SIEMENS (Ernst Werner v. ; brother of the above) Scientific and Technical Papers, 

 translated from the 2nd German Edition, with portrait and 244 illustrations, 2 vols. 8vo. cl., 12s 

 (p. £1. 8s) 1892-5 



14855 Vol. I only (Scientific Papers and Addresses), with portrait, and 41 ivoodcuts, 8vo. 



d., 6s (p. 14s) 1892 



14856 , Personal Recollections of, translated by W. C. Coupland, with heliogravure 



portrait, 8vo. cl., 5s (p. 15s) 1893 



The degraded Twentieth Century Germany of State lying, poison, and murder would be hard put to it to produce the 

 equals of Karl Wilhelm aud Werner von Siemens. 



14857 SIGAUD de la FOND (Jean Rene) Dictionnaire de Physique, avec le Supplement; 

 with folding plates on copper, 5 vols. 8vo. contemporary mottled calf gilt {nice copy), 12s 6d 1781-2 



14858 De I'Electricite Medicale ; with A folding plates on copper, thick 8vo. sewn, 6s Qd 1802 



14859 Elemens de Physique th^orique et experimentale, pour servir de Suite a la Description 



et rUsage d'un Cabinet de Physique experimentale ; 2^ Edition, revue et augmentee par M. [N.] 

 Houland, with portrait after Naudin, and 25 folding plates, 4 vols. 8vo. contemporary mottled 

 calf gilt, 17s Qd 1787 



14860 EssAi sur Differentes Especes d'AiR, qu'on designe sous le Nom d'AiR Fixe ; with 



5 folding plates on copper, 8vo. contemporary mottled calf gilt, 10s 1779 



'En 1776 il experimentait avec Maquer. Occupes a etudier le gaz hydrogene, qu'on nommait alors air inflavimaUe, lis 

 reconnurent que sa combustion produisait de I'eau. Sans doute 11 y a loin de ce premier jet de lumiere aux grands resultats 

 produits par I'appareil que Lavoisier imagina en 1783 ; mais il n'en reste pas iwoins demontre que I'honneur de la 

 «l6couverte appartient a Sigaud-Lafond.'— if. Boyer. 



14861 Precis Historique et Experimentale des Phenomenes ELECTRiQUES,depuis I'Origine 



de cette Decouverte jusqu'k ce Jour, 2^ Edition, revue et augmentee ; with 10 folding plates on 

 copper, thick 8vo. sewn, uncut. Is Qd 1785 



14862 Another Copy, old hf. calf {back damaged), 8s Qd 



Including a copious account of atmospherical electricity and lightning conductors, with original investigations by the 

 author himself. He claims in the above work to have been the first to use glass plates with electrical machines in 175ti, 

 and describes an improved Leyden Jar for measuring electricity constructed by him. 



14863 SILBERSOHLAG (Johann Esaias, Pastor zu Magdeburg) Theorie der am 23. Julii, 1762 

 erschienenen Feuer-Kugel ; with 3 folding plates, 4to. sewn {rai^e), 7s Qd Magdeburg, 1764 



14864 Theorie des Fleuves, avec I'Art de batir dans leurs Eaux, et de prevenir leurs 



Ravages. Ouvrage traduit par M. [C. F. J.] d'Au[xiRON] ; with 13 folding plates: Bossut 

 (Charles, s.J., de PInstitut), et Guillaume ViaUet : Recherches sur la Construction la plus 

 avantageuse des Digues ; with 1 folding plates — 2 vols. roy. 4to. contemporary calf gilt, 12s 1769-4 



Bound up with the above is Treatise on Rivers by Theodore Augustus Mann, f.r.s. (originally published in the 

 Philosophical Transactions of 1779), a neatly written Manuscript on 72 pp. 



14865 SIMIENOWICZ (Oasimir, Lieut. -General d' Artillerie, Pologne) Grand Art d'ARTiLLERlE, 

 mise en Francois par Piere [sic] Noizet ; with engraved title, and 22 fine copperplates {\ folding), 

 folio, old calf newly rebacked {slightly browned, otherwise a fine copy) ; rare, with old armorial 

 bookplate o/SiR John Cope, £I. 15s Amsterodami, Joa. Jannson, 1651 



