37o HENRY SOTHERAN & oo., uo, STRAND, w.c., AND 3?, PICCADILLY, w. 



7241 DENTON (John Bailey, M.I.C.E.) SANITARY ENGINEERING : Lectures before the School of 

 Military Engineering, Chatham, 1870, with 25 folding plates, and numerous woodcuts , thick roy. 

 8vo. hf. morocco (out of print) , 10s (p. 1. 5s) 1877 



A standard work on the subject. 



7242 DENZA (Francesco, Jlarnabita] ELEMENTI di ARITMETICA, 2 ;l Edizone, cr. 8vo. hf. vellum, 

 2s Torino, 1871 



7243 DEPIERRE (Joseph) RAPPORT sur les INDUSTRIES de UMPRESSION et de la TEINTURK a 

 ['Exposition Universelle de 1S7S; with woodcuts, inipl. 8vo. (pp. 73), sewn, 2s Qd Rouen, 1880 



7244 DESARGTJES (Gerard) ALGEMEENE MAXIER tot de PRACTYK der PERSPECTIVEN, gelyk tot 

 die der Meet-Kunde, met de kleine Voet-maat, mitsgaders der Plaatsen, en Proportien van de 

 sterke en rlaauwe Rakingen, of Kleuren ; by-een-gevoegt door ABRAHAM BOSSE, en uit Frans 

 vcrtaalt J. BARA ; ivith engraved title, and 156 copperplates : [Bosse (A.)] ALGEMEEN MIDDEL 



and marking the Hours in Sun-dyals, after the French, Italian, Babilonian and Jewish Manner ; 

 with the Manner of drawing the Lines of the Signs, of finding out the Height of the Sun above 

 the Horizon, and the East-rising of the same, the Elevation of the Pole, and the Position of the 

 Meridian, all which may be done in any Superficies whatsoever, and in what Situation soever it 

 be, without any Skill at all in Astronomy [trans, with Preface] by DANIEL KING, with engraved 

 front, and numerous other copperplates, sm. 4to. contemporary sheep (one joint cracked, but a large 

 and sound copy], with auto, of Francis Wrangham, Archdn. of Cleveland, F.R.S., classical 

 scholar (1769-1842) ; VERY RARE, 1. 15s Tho. Leach, 1659 



' On y trouve uu grand detail de figures et d'explications sur la maniere de placer 1'axe d'un cad ran mecaniquement par 

 trois points d'ombre, et de tracer 1'equinoxialc en faisant tourner une equerre antour de 1'axe, et dirigeant un til le lung do 

 I'equerre.' Lain tide. 



The above works were termed by Prof. Cantor ' precursors of that science which about 150 years afterwards received 

 the name of descriptive geometry.' 



Thu author is most celebrated for his ' Sections coniques ', published in 1039, but now almost entirely lost. 



7246 DESBEAUX (Emile) PHYSIQUE POPULAIRE ; with 4 coloured plates, and 508 woodcuts, impl. 

 8vo. cl. gilt, Qs (p. F. 15 nett) 1891 



7247 DESBOVES (Adplphe) QUESTIONS de GEOMETRIE ELEMENTAIRE : Methodes et Solutions, 

 avec Expose* des principales Theories et de nombreux Exercices proposes, 2 e Ed., refondue et 

 augmentee; with 12 plates, 8vo. sewn (rare), Qs 1875 



7248 QUESTIONS de TRIGONOMETRIE : Methodes et Solutions, avec plus de 400 Exercices 



proposes ; with 4 plates, 8vo. 2s (p. F. 5 nett) 1872 



7249 DESCARTES [Latine CARTESIUS] (Rene du Perron) (EuVRES COMPLETES, publides 

 par VICTOR COUSIN; with 45 folding plates, and ft. letter, 11 vols. 8vo. calf gilt (VERY SCARCE), 

 5. 5s 1824-6 



The best edition of the complete works, which has wholly superseded that of 1724-f). The last volume contains 

 works which had not hitherto been translated into French, and extracts from his MSS. 



7250 OPERA PHILOSOPHICA, sc. Meditationes de Prima Philosophia, etc. ; Epistola ad Gisbertum 



Voetium ; Principia Philosophise ; Dissertatio de Methodo ; Dioptrice ; Meteora ; Tractatus de 

 Passionibus Animre ; Ed. II. ab Auctore recognita ; -with numerous woodcuts and diagrams, 4 vols. 

 4to. in 2, old hf. calf gilt (some II. water-stained, but a sound copy), 1. 1* 



Amstelodami, Lud. Elzevir, 1654-50 



7251 EDITIO ULTIMA, nunc demum hac Editione diligenter recognita, et Mendis expurgata ; 



with fine engraved portrait, and numerous woodcuts and diagrams, 4 vols. 4to. in 3, contemporary 

 stamped vellum (sound copy], ]. Is ibidem, apud Danielem Elsevirium, 1677-8 



The above copy has the ' Principia ' interleaved, with the addition cf numerous MS. notes in a contemporary hand ; also 

 a presentation inscription by James Lockhart, of North Marston and Oving, Bucks, '7th Sept., 1841, anno at. mc;r 7'.'', 

 to John Alfred Lumb Airey, now at Christ's Hospital, as a testimony of my sense of his able resolution of three problems 

 which 1 proposed to British students 'the late Rector and restorer of St. Helen's, Bishopsgate. 



,252 SPECIMINA PHILOSOPHIC: seu DISSERTATIO de METHODO recte regendse rationis, et 



veritatis in scientiis investiganda' : DIOPTRICE, et METEORA, ex Gallico translata, et ab Auctore 

 perlecta, vferiisqne in locis emendata ; with vignette, on title, and numerous woodcuts and diagrams, 

 4to. fine copy in contemporary vellum (RARE)i 1. Us 6d ibidem, Lud. Elzevir, 1644 



FIRST LATIN EDITION of tho Discours ' (c. A'o. 7'2.v; o</''")> by Etiennc de Courcelles, revised by the author, and contain- 

 ing many additions by him. 



7253 EPISTOLJE, partim ab Auctore Latino Sermone conscripUe, partim ex Gallico translata*, 



in quibus omnis Generis Qiuostiones Philosophicae tractantur, et explicantur plurini.T Difficultates 

 qiue in reliquis ejus Operibus occurrunt, editio Latina princeps ; with numerous woodcuts and 

 diagrams, 3 vols. 4to. in 2, sound copy in contemporary vellum (RARE), 1. 155 



ibidem, Dan. Elzevir, etc., 1668-83 

 With inscription as above (Xo. 7^31) to the late Mr. Airey, pr. The third volume is often wanting, and rare. 



7254 EDITIO ALTERA, PARTES I. ET II. ; with numerous plates and other woodcuts, 2 vols. 4to. 



in 1, old calf, 15s Londoni, J. Dunmore et 0. Pulley n, 1668 



Containing the author's physical and mathematical correspondence with Hobbes, Format, Mersenne, de Roberval, 

 Henry More (Cambridge Platonist), etc., 'with many mathematical papers of Fermat which did not appear in his Opera 

 Varia.' Libri Catalogue. 



7255 MEDITATIONES de PRIMA PHILOSOPHIA ; his adjunct! sunt variac OBJECTIONES Doctorum 



Virorum, cum Responsionibus Authoris : EPISTOLA ad GISBERTUM VOETIUM : PASSIONES 

 ANIM^: in 1 vol. sm. 4to. vellum (first title mounted), with bookplate of Mr. Henry Reeve, C.B., 

 8s Qd Amstelodami, Lud. Elzevir, 1654-50 



This work "iilargcs Hi- author's philosophir vi-jws. as originally outlined in the ' Discours'. 



