HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 737 



14731 SCHON (H. A. E. C. v., m.a.s.c.e.) Hydro-Electric Practice : a Practical Manual of the 

 Development of Water Power, its Conversion to Electric Energy, and its Distant Transmission, 

 with 3 cJmrts, and 232 other illustrations, 4to. cL, lAs (p. £1. 5* nett) Philadelphia, 1908- 



14732 SCHONER (Lazarus) De Numeris Geometricis. Of the Nature and Properties of 

 Geometricall Numbers, now Englished, enlarged and illustrated with diners and sundry Tables 

 and Obseruations concerning the Measuring of Plaines and Solids [by William Bedwell] : All 

 teaching the fabricke, demonstration and vse of a singular Instrument, or Rular, long since 

 inuented and perhtted by Thomas Bedwell, with folding table of' Trigonum Architectonicum,. 

 or, the Carpenters Square ', sm. 4to. setvn (title somewhat soiled and headlines cut into, otherwise a 

 sound and clean copy) ; VERY RARE, £1. 10s Richard Field, 1614 



14733 AnOTHEr'COPY, hf calf (X large AND VERY sound COPY), £1. 18s 6rf 



' Nominally an enlarged translation of La/arus Schonerus's De Numeris Geometricis, but in reality altogether rewritten,, 

 with the practical object of explaining the use of the ' trigonicuni ', or carpenter's square, and the ruler, or mechanical 

 contrivance for carpenters' computations, which had been invented by his uncle. This 'ruler ',or mesolabium architecton- 

 icum, had i^raat value in Bedwell's eyes, and in the preface to his book in 1614 he expresses an intention to publish 

 something further on it." — D. N. B. 



William Bedwell, the father of Arabic studios in England, was one of the Westminster Translators of the Bible. 



There is lo copy of this work in the British Museum Catalogue of Early English Books. 



14734 SCHOOTEN (Frans van; Univ. Leijden) ExercitationUxM Mathematicarum Libri V: 

 I. Propositionum Arithmeticarum et Geometricarum Centuria. II. Constructio Problematum 

 Simphcium Geometricorum. III. Apollonii Pergtei Loca Plana restituta. IV. Organica- 

 Conicarum Sectionum in Piano Descriptio. V. Sectiones Miscellaneae XXX, quibus accedit 

 Christiani Hugenii Tractatus, de Ratiociniis in ALEiE Ludo ; with numerous woodcuts and 

 diagrams, sm. 4to. old white vellum, \As Lugd. Bat., ex off. Joh. Elsevirii, 1657 



14735 Another Copy, hf. calf {sound copy), \1s Qd 



' His chief work in which he applies the analytical i^oometry to the solution of many interesting and diflicult problems ' 

 (Prof. Cajori), and 'recommended the use of coordinates in space of three dimensions' (IV. IV. R. Bull). It is further 

 valuable for the treatise by Christiaan' Huvoens, the tirst work printed on the theory of probabilities. 



The second book contains mainly a reprint of the Geometria Peregrinans, by an unknown Polish author, in which 

 surveying problems are solved by the use of the cross staff and chain alone. 



14736 De Organica Conicarum Sectionum in Plano Descriptione, cui subnexa est 



Appendix de Cubicarum /Equationum Kesolutione ; with numerous woodcuts and diagrams, 

 sm. 4to. hf. bound, uncut, 10s 6d ibidem, ex. Off. Elzeviriorum, 1646 



Of great interest for the first chapter, ' De rectis lineis, quie in piano ex motu implicato describuntur ', in which the 

 author devi.ses a method of drawing a straight line by means of a link and a triangular ruler. This is especially of im- 

 portance in connection with the alleged discovery of drawing straight lines by linkages by A. Peaucellier in 1804. See 

 No. 10054 nnte. 



14737 SCHORLEMMER (Carl, f.r.s. ; Univ. Manchester) On the Normal Paraffins, Parts I— III, 



3 parts 4to. (pp. 28), sewn, with author's inscr., 3s Qd 1872-86 



14738 Part I only, 4to. (pp. 13), sewn, with long 2-p. Manuscript by the author on 



THIS subject inserted, 3s 6d 1872 



14739 The Rise and Development of Organic Chemistry; revised Edition, edited [with 



Biographical Note and Bibliography], by Arthur Smithells, F.R.S., with portrait, large cr. 8vo. 

 cl., uncut {scarce), 10s Qd 1894 



14740 SCHOTT (Kaspar, s.J., Univ. Wilrzburg) Magia Universalis Nature et Artis, sive 

 Kecondita Naturalium et Artihcialium Rerum Scientia, cujus Ope per variam Applicationen* 

 Activorum cum Passivis, admirandorum Efl'ectuum Spectacula, abditarumque Inventionum 

 Miracula, ad varios Humance Vitae Usus, eruuntur ; continet Pars I. Optica. II. Acoustica. 

 III. Mathematica. IV. Physica ; editio princeps, with engraved titles and numerous plates, 



4 vols. 4to. sound copy in contemporary calf gilt (FINE COPY) ; rare, £2. 10s Herbipoli, 1657-^ 



14741 Another Copy, 4 v., vv. I— II in old calf, and v. Ill— IV in old vellum {vv. Ill— IV 



browned), £1. 15s 



14742 Vol. II only (Acoustica), luith engraved title and numerous plates; old vellum 



{browned), 5s ibidem, 1657 



'Cet ouvrage est le meilleur expos6 des connaissances physiques au XVIIe siecle.' — Biogr. (am. 



It is the author's most important work, containing his valuable optical experimeiits, a good ex])lanation of optical ana- 

 morphoses, and especially of the/«^a morgana, as well as giving rules for cylindrical and conical anamorphoses. 



'Mechanische Regeln zur Bewerkstelligung iiberraschender, auf den ersten Blick nicht erklarlicher,»opli8cher Erschei- 

 nungen, mit vielen fiir die Geschichte der Optik wichtigen Bemerkungen machen den Hauptinhalt dieses bekannten Werkes 

 aus.' — Wilde's Geschichte der Optik, where a full acount of the work will be found on pp. 206-300. It was reprinted, without 

 alterations, in 1677. 



14743 — -^ — Mechanica Hydraulico-Pneumatica, qua Aquei Elementi Natura, Proprietas, Vis 

 Motrix, atque Occultus cum Acre Conflictus, h primis Fundamentis demonstratur . . . Experimenta 

 Hydraulico-Pneumatica, Absoluta Machinarum Aqua et Acre animandarum Ratio ac Methodus 

 . . . accessit Experimentum Novum Magdeburgicum, quo Vacuum alii stabilire, alii evertere 

 conantur, editio princeps ; with engraved title, numerotts folding plates on copper, and woodcuts, 

 4to. sound copy in hf. brown calf gilt, uncut (RARE), £1. 10s ib., 1657 



This work is important as containing the first account of the air-pump invented by Otto v. Guericke, the author's 

 friend. 



' Reading in 1G57, in Schott's Merhanica Hydraulico-pjieumatica, of Guericke's invention of exhausting the air in a closed 

 vessel, Robert Boylk set Robert Hooke to contrive a method less clumsy, and the result was the so-called itmchiTut 

 Boyleana, completed towards 1659, and presenting all the essential qualities of the motlern air-pump.'— Miss Agnes M. Gierke. 



14744 Physica Curiosa, sive Mirabilia Naturae et Artis, quibus pleraque, qu?e de Angelis, 



Daemonibus, Hominibus, Spectris, Energumenis, Monstris, Portentis, Animalibus, Meteoris, etc. 

 rara, arcana, curiosaque circumferunter, et ad Veritatis Trutinam expenduntur, editio princeps ; 

 with engraved title, and about 60 plates (some folding), 2 thick vols. 4to. contemporary calf, newly 

 rebacked (rare), £1. 10s ib., 1662 



The book 'Mirabilia Meteorum ' (pp. 1387-1513) sums up contemporary knowledge on meteorology. One chapter 

 naively suggests that ' Augeli non sunt ordinarie causa efflciens ventorum.' 



