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



14715 SCHEFFEB (Henrik Theophilus) Chemische Vorlesungen liber die Salze, Erdarten, 

 Wiisser, entziindliche Korper, Metalle und das Farben, gesaramelt, in OrdnuDg gestellt und mit 

 Anmerkungen herausgegeben von Torbern [Olof] Bergmann [sic], aus dem Schwedischen 

 iibersetzt von Christian Ehrenfried Weigel ; with 5 folding plates, and 2 folding tables on 

 copper, sm. 8vo. (pp. 752), seion {rare), lOs 6d Greifswald, 1779 



The author was the first to explain (!orrectly some of the properties of platinum, and to ascertain the quantitative 

 composition of a few chemical compounds. He was a supporter of the phlogiston theory, and advanced an hypothesis 

 ascribing to the phlogiston negative weight. 



The above is the only translation of the Swedish original ever published in any language. 



14716 SGHEFFER (Johann) De Militia Navali Veterum Libri IV, ad Historian! Graecam 

 Latinamque utiles ; with frontispiece and 3 other fine copperplates, and numerous interesting 

 woodcuts, sm. 4to. old vellum {small hole in front, and binding somewhat defective), with fine 

 engraved bookplate by du Vivien, of Liege, and of Thomas Phillips of Ickford (1708-74) with 

 another of Francis North Lord Guilford, 1703 (rare), £1. 10* Ubsalice, Joh. Jansson, 1654 



14717 Another Copy, printed on stouter paper, but ivithout the 3 copperplates, 4to. old vellum 



{back of binding damaged, otherwise a FINE COPY), with bookplate of Patrick Hume, first Earl of 

 Marchmont, 1702, £1. \s 



This is next to Snellius's {v. No. 4484 ante) the earliest work on the naval arts of the ancient's. It is chiefly collected 

 from the Greek and Roman Classics, and treats the subject far more fully than that of Snellius, which is more exclusively 

 devoted to navigation, while the present work treats more especially of naval architecture. 



'14718 SCHEINEE. (Christoph, s.J.) OcuLUS hoc est : Fund amentum Opticum, in quo ex accurata 

 Oculi Auatome, abstrusarum Experientiarum sedula Pervestigatione, ex Invisis Specierum 

 visibilium tam everso quam erecto Situ Spectaculis, necnon Solidis Rationum Momentis Radius 

 Visualis eruitur ; sua Visioni in Oculo Sedes decernitur ; Anguli Visorii Ingeniuin aperitur ; 

 Difficultates veteres, novie, innumeroe expediuntur, abstrusse, obscura, curiosa plurima in medium 

 proferuntur, etc. etc. etc. ; ivith numerous woodcuts and diagrams, sm. 4to. contemporary limp 

 vellum {some II. ivormed on margin and others browned, but a large and otherwise sound copy) : 

 RARE, £1. 105 (E7ii2mnti, apud Danielem Agricolam, 1619 



' Eines fiir seine Zeit ausgezeichnetes optisches W erk.'— Poggendorff. 



This work contains many important investigations in physiological optics, and the experiments known by the author's 

 name, in which he showed that the rays of light cross each other when passing through a small hole. He called attention 

 to the fact that the retina is the organ of seeing, gave the first satisfactory explanation of accommodation, and the first 

 correct illustration of the human eye. 



14719 : Prattica del PARALLELOGRAMModaDESiGNARE del p. Christoforo Scheiner, della 



Compagnia di Giesii, di nuovo data in Luce da GiULlo Troili alias Prencipe Pittore da Spilim- 

 berto ; with 2 plates, sm. 4to. seiun {one I. slightly damaged), 8s Bologna, Giac. Monti, 1653 



'14720 another Copy, figured boards {nice copy), 10s Qd 



' Raro.' — Riccardi. It describes Scheiner's invention of the pantograph. 



14721 SCHINZ (Karl) Researches on the Action of the Bl\st-Furnace ; translated by W. H. 

 Ma\v and M. Muller, with Appendix (pp. 40), written by the Author expressly for the English 

 Edition, with 7 plates, and numerous woodcuts, cr. 8vo. cl. {o. p.), 3* Qd (p. Ss 6c?) 1870 



'The w.-.rk possesses a special value from the extensive collection of experimental data which it contains.' — 

 Translators Preface. 



14722 SOHMID (Ernst Erhard ; Univ. Jena) Lehrbuch der Meteorologie ; with 96 woodcuts, 8vo. 

 (pp. 1025), seu-n {Atlas wanting), As (p. M. 39) Leipzig, 1860 



14723 SCHMIDT (Carl) Der Zitterstoff (Electrogen) und seine Wirkungen in der Natur ; with 

 vignette on title, 8vo. old hf. calf {rare), 12s Qd Breslau, 1803 



The author's was to be be ' the greatest and most momentous discovery ever made for science ' {Preface). This curious 

 chemical paradox i^ dedicated 'an den Blirger Bonaparte, er.sten Consul der franzosischen Republik, Priisident der 

 italijinischen Republik,' and contains an interesting 8-page address to him. 



14724 SCHMIDT (Charles Frederik, konst-spaarlicht-vjerker) Proeve eener historische en ontle- 

 dende Verhandeling over de meest in Gebruik zijnde Lamp-Soorten ; dienende ter nadere 

 Kennisse en Aanbevelinge der Spaar-Lampen enz., alsmede de chronologische Bereiding, 

 Berekening en Zuivering der meeste Brand-Olijen ; with 3 coloured folding plates, 8vo. (pp. 

 14i). sewn {rare), 10s Hd Amsterdam [1810] 



This rare work illustrates a number of varieties of the Argand Burner, and is interesting as probably the last account 

 of oil lamps written before the introduction of gas lighting. 



14725 SCHNABEL (Carl) Handbook of Metallurgy, translated [with Additions] by Henry 

 Louis, with 927 woodcuts, 2 thick vols, large 8vo. cl., 16s (p. £2. 2? nett) * 1898 



'The most recent and most exhaustive work on the subject in any language.' — Translator. It does not contain the 

 metallnrgv of iron and steel. 



'14726 SCHNAUBERT (Ludwig; Univ. Kharkoff) Untersuchung der Verwandschaft lsic^ 

 der Metalloxyde zu den Sauren, nach einer Priifung der neuen Berthollet'schen Theorie ; with 

 folding table of affinities, cr. 8vo. boards, 5s Erfurt, 1803 



.. An attack on Berthollet's Doctrine of Atlinity, as contained in his E^sai de Statique cJdmiiv.e. 



14727 SCHONBEIN" (Chriatian Friedrich; Univ. Basel, inventor of gun cotton) Ueber die Natur 

 des eigenthumlichen Geruches, welcher sich sowohl am positiven Pole einer Saule wiihrend 

 der Wasserelectrolyse, wie auch beim Ausstromen der gewohnlichen Electricitat aus Spitzen 

 entwickelt, 4to. (pp. 17), sewn {rare), 12s Qd [Milnchen, 1840] 



Containing the author's discovery of ozone (first so named by him). The change of oxygen when passing through an 

 electric discharge was first noticed by Martin van Marum in 17'92. ' The beautiful investigations of Schonbein, Marignac, 

 and de la Rive established the sub.stantial identity of ozone and oxygen.'— Pro/. E. v. Meyer. 



V. Faraday, No. 7791, ante. 



14728 SCHUBERT (Hermann) Mathematical Essays and Recreations, translated by Thomas 

 J. McCoRMACK, with 39 illustrations, roy. 8vo. cl., ^s Qd (p. 3^ 6d nett) Chicago, 1898 



14729 SCHULTZ (Johann ; Univ. Kbnigsberg) Anfangsgrunde der reinen Mathesis ; with 

 1 folding plates, 8vo. boards, 2s 6d Konigsberg, 1790 



