278 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37, PICCADILLY, W. 



5454 WITSEN (Nicolaes) Aeloude en hedendaegsche Scheeps-Bouw en Bestier, waer in 

 wijtloopigh wert verhandelt, de Wijze van Scheeps-timmeren, by Grieken en Romeynen : Scheeps- 

 oetfeningen, Strijden, Tucht, Strafte, Wetten en Gewoonten ; beneffens evenmatige Grootheden 

 van Schepen onzen tijts, Verschil van Bouwen tussdien uitheemscben en onzen Landaert, Indisch 

 Vaertuygh, Gal^y-bouw, enz. ; with engraved title hy RoMEYN DE HOOGE, and 114 copperplates, 

 roy. folio, Large Paper ; old calf {top of margin water-stained, otherwise a sound copy) ; very 

 RARE, £4. 45 Amsterdam, 1671 



The most important work on shipbuilding published during the XVII. Century, and especially valuable for the numer- 

 ous plates giving every detail of construction. It was unknown to Brunet and Graesse. The ' Privilegie ' was signed by 

 JoHAN DE Witt. 



5455 WITTE (Hans) Ueberden gegenwartigen Stand der Frage der mecha.nischen Erklarung 

 der elektrischen Erscheinungen ; with plate and 14 diagrams, roy. 8vo. sewn, 4* M 

 (p. M. 7.50) Berlin, 1906 



5456 WITTY (John, pr.) Treatise of the Sphere, also the Projections of it, l>oth Orthographical 

 and Stereographical, with the Resolution of Astronomical and Chorographical Problems, 2nd Ed., 

 by James Hodgson, f.r.s., with folding plates, sm. Svo. old calf gilt {nice copy), ivith bookplate of 

 Philip 2nd Earl Stanhope, F.R.S. , 8s 6d ' 1734 



Rare ; unknown to Houzeau and Lancaster, also to Watt, Allibone, Lowndes, etc, 



e5457 WOLF (Johann Christian Freiherr v. ; f.r.s.) Aerometri^e Elementa, in quibus aliquot 

 Aeris Vires ac Proprietates juxta Methodum Geometrarum demonstrantur ; with 11 copperplates, 

 18mo. old vellum {browned, but sound copy) ; RARE, 155 Lipsice, 1709 



Important as the first work giving a scientific basis for aerometry, and interesting for containing the description of an 

 anemometer for measuring the speed of the wind— the first described in Germany. 



5458 COSMOLOGIA Generalis, Methodo Scientitica pertractata, qua ad Solidam, imprimis Dei 



atque Naturae, Cognitionem Via sternitur ; with plate, 4to. old calf gilt {fine copy), with bookplate 

 of Philip 2nd Earl Stanhope, F.R.S. , 6s Francofurti, 1731 



5459 -Elementa Matheseos Universe; Editio nova, multo auctior et correctior; with fine 



portrait, and numerous folding plates, 5 vols. 4to. old hf vellum, uncut, 12.9 Halce, 1730-41 



5460 Editio Altera ; with fine portrait {re- engraved), and numerous folding plates, 5 vols. 



4to. old calf gilt (Vine copy), with Lord Stanhope's bookplate. Vis Qd Genevce, 1732-41 



The handsomest edition issued of the work. 



' Replete with pieces of information, which are historical references and suggestions. As far as 1 can remember, Wolff 

 is much the most learned historian of those who have written extensive courses.' — Prof, de Morgan. 



5461 KuRTZER Unterricht von den vornehmsten mathematischen Schrifften, vierdte 



Auflage, vermehret, 12mo. old mottled calf {fine copy), with Lord Stanhope's bookplate, 5s 



Franckfurt, 1731 



5462 Zu der Trigonometrie und Ausziehung der Wurtzeln nothige Tafeln, darinnen die 



Sinus und Tangentes fur jede Minute des Quadrantens, nebst ihren Logarithmis und den 

 Logarithmis der gemeinen Zahlen von 1 bis 10,000, u. s. w.; ivith 2 plates, sm. Svo. old sheep 

 gilt, 4s Halle, 1744 



5463 WOLF (Rudolf, Zurich) Handbuch der Mathematik, Physik, Geodasie und Astronomie ; 

 with numerous woodcuts and diagrams, 2 vols. roy. Svo. hf. calf gilt {nice copy), 12s 6^ (p. M. 25.20 

 unbound) Ziirich, 1870-2 



Invaluable as a reference book for the copious bibliographies of historical works added to each chapter, division, and 

 sub-division, 



5464 WOLFF (Emil Theodor) Quellen-Literatur der theoretisch-organischen Chemie, vom 

 Anfang des letzten Viertheils des vorigen Jahrhunderts bis 1844, Svo. cl., with auto, of Prof. 

 A. W. Williamson, F.R.S. , ' Giessen, 1845', 2s Qd Halle, 1845 



5465 WOLFRAM (— ) Naturliche oder hyperbolische Logaritiimen bis auf 48 Decimal- 

 stellen, Svo. seivn, 3s [Berlin, 1788J 



Containing the logarithms from 1 to 2200, and of the prime numbers from 2201 to 10,009, 



5466 WOLL ASTON (Francis; Rector of Chislehurst, F.R.S.) Description of a New System of 

 Wires in the Focus of a Telescope, for observing the comparative Right Ascensions and Declin- 

 ations of Coelestial Objects, etc. etc. etc., plate, 4 to. (pp. 7), seivn, 2s 1785 



5467 Description of a Transit Circle, for determining the Place of Celestial Objects as 



they pass the Meridian, 2 folding plates by Basire, 4to. (pp. 21), sewn, Cs 1793 



5468 Directions for Making an Universal Meridian Dial, capable of being set to any 



Latitude, etc. etc., plate, 4to. (pp. 8), sewn, 2s 1793 



5469 Specimen of a General Astronomical Catalogue, arranged in Zones of North Polar 



Distance, and adapted to Jan. 1, 1790 : containing a comparative View of the Mean Positions 

 of Stars, Nebulae, and Clusters of Stars, with a Proposal for setting on Foot some Regular 

 Method of Observing the Heavens, through the Concurrent Assistance of Astronomers in all 

 Nations, etc. etc. etc., roy. folio, old calf {title mounted), 10s 6d 1789 



Besides his scientific attainments WoUaston was all his life an extensive pluralist in several Counties, and an advocate 

 of easy subscription for the clergy. 



5470 WOLLASTON (William Hyde, m.d., f.r.s.) On the Apparent Direction of Eyes in a 

 Portrait, ivith 4: fine copperplates (2 with superposed slips, showing the relation of facial expression 

 to the eyes) by Sir" Thomas Laavrence, r.a., 4to. (pp. 10), sewii {rare), 12s 6c? 1824 



'An ingenious explanation of the apparent direction of eyes in a portrait, illustrated by his friend Sir Thomas 

 Lawrence'. — D. N. B. 



5471 WOLLNY (Ewald) Die Zersetzung der organischen Stoffe und die Humusbildungen, 

 mit Riicksicht auf die Bodenkultur ; with 52 woodcuts, large Svo. buckram, ivith auto, of Dr. A. 

 Macfadyen, 9s (p. M. 16 unbound) Heidelberg, 1897 



