HENRY SOTSERAN & CO., 140, STRAND. W.C, and 37. PICCADILLY, W. 2.7 



5052 [VENUSTI (Antonio Maria)] Compexdio Utilissimo di .luelle Toso, \o nuali a Nobili o 

 Chnstiani Mercanti APPARTENGONO ; taith device on title, I'Jm ). old cdlum [Uduting 4 II., title 

 cropped, and some II. wormed), £L l* MUnn,> ^:^^\\ 



Very RARE, and seemingly unknown to Mr. Richard Brown, who doss not menUon it iu his ' IJiblio^'rai 

 keeping It contains: Discorso della Mercantia; Trattato del OamWo di Bisenxone ; Ksortatione a" Morca 

 tioiie (le Mercanti ; and Trattato de* Cambi in Kenerale. 



5053 VERDAM (Gideon Jaa) Commentatio de Compositimm; Nikum ; vith 1 folding plate*, 

 large 8vo., Thick Paper ; sewh, uncut, 5s Qd Tnnecti a. R., 1825 



Tliis work was awarded a prize by the University of L'tr. 



505i VERDET (Marcel Emile) (EavRES, publi^es par les Soin« di ves ; with fine HmI 



portrait, and numerous woodcuts and diagrams, 8 vols, large 8vo. A/, caij neat {some tiUet stamped) ; 

 SCARCE, £4. 105 Imprimerie ImptriaU, ouNaiionale, 1888-72 



CoxTENu:— I. Notes et Meinoires, avec Notice par A. A. de La Hivk : 11. III. Coum de Phjilqiw, X v. : IV. Con. 

 fcrences de Physique, puhliees par D. Gkr.nkz, 2 parU : V. VI. Iji^oim dOpljque phy*i«»u^ pablMM par A. Levwtal. 

 2 V. : MI. \ III. Thtorie nujcaninue de la Clialeur, pnbllee par J. C. Pbudho.s et J. Viomir, J v. 



5055 Lecons d'OPTiQUE PiivsniUE, publides par A. Levistal ; iciM 186 diagrams, 2 vols, larj^'o 



Svo. broum prize calf extra {fine copy) ; SCARCE, £1. 1* Imprimerie ImairwU, 18toll 



Containing an interesting history of the undulatory theory of light, aluo rwearche* on double reflnetioa, ft>Ury |iol«ri«- 

 tion, etc. etc. ; with full bibliographies to each chapter. 



5056 Theorie M^CANiyuE de la Chalkur, publi«Se par Jean Charles Pkudhon et Jules 



ViOLLE ; with 111 woodcuts and diagrams^ 2 vols, large 8vo. in 1, new hf brown ca^f gilt, 12# / 



udeamdim, 1868-72 



With coplomi blbliograj^hiis 



5057 VERNON-HARCOURT (Leve«on Francis, m.lc.e.) iiARHOUK.s una iiocics: Uielr Fhywcal 

 Features, History, Construction, K4uii)inent, and Nfaintenanco, M-ith Statistics as to their Com- 

 mercial Development, with 16 large folding plates, besides woodcuU, 2 vols. 8vo. d. (VERY SCARCE). 

 £1 105 Clarendon Press, (h^/ord, 1885 



One of the best works on the subject. The author waa profesaor of civil etiKlneerlnK in Univertity CcMleRe, London, one 

 of the Harbour Coininissloners of Newport (Mon.), Hligo, and Poole, and did imporUiit work la India to oooneikNl ertUi 



the improvement of the river Hugli for navigation. 



5058 Sanitary Engineering, with respect to Water-Supply and Sewage Disposal, toOA 287 



woodcuts, Svo. buckram, %s 6d (p. 14« nett) 1907 



5059 Treatise on Rivers and Canals, relating to the Control and Improvement of Rivers, 



and the Design, Construction, and Development of Canals, with 21 large folding plaUs {linen- 

 mounted), and 20 woodcuts, 2 vols. Svo. hf morocco {titles stamped), 6sM{\\.£\. \s) 



Clarendon Press, Os^ord, 1882 



5060 VERVER (B., Maestricht) L'KCLAIRAGE au Gaz Ji TEau h. Narbonnk et I'KcLAlBAaBattGAZ 

 Leprince, examines et contpards ; with woodcuts, Svo. sewn, 3» Leide, 1858 



5061 VESCOVALI (Angelo) Sull' Accre.scimento della Forza Motrice Idraulica, e sol Miglio- 

 ramento della Distrihuzione delle Acque di Roma, 4to. (pp. 9), sewn, 2s Roma, 1858 



VICECOMES (Antonio Maria)— v. ViscONTi, post. 



5062 [VIERO (Francesco)] Descuizione d'un Apparecchio di Macchine per Cavare e MaNBO- 

 GIARE le Arie generalmente dette FissE ; with 2 folding plates on copper, 8vo. (pp. 48), mtm 

 {rare), 5* JiUogna, 1788 



. Interesting as describing new apparatus and giving rules for ntanipulating Ksaet in the laboratory. 



5063 VIETE [latine VIETA] (Fran90i») Opera Matiiematica, UperA atque Studio Fbancisci A 

 ScHOOTEN; with numerous diagrams {a few with moveable slips), folio, old white veJlum {VERY 

 FINE COPY), with Prof Riccardi's booklaSel (rare), £2. 2s Lugd. Ratav., 11. et A. Elzf.vir, 1610 



ISAAC BARROW'S ANNOTATED COPY: 



5064 Another (? Large Paper) Copy, contemporary English calf {rebeuledhwith old auto. 



'J. Hawkins £1. 4.4', and that o/ Isaac Barrow^, with verr numerous AS. problems, 

 solutions, and quotations in the latter's very neat handwntinff, £10. 10« 



Ok GRE\T INTERE.ST AS HAVING BKEM THK WOBKIKO COPV OV THAT URBAT MATSSeATlCtaS AVD TSSOUMIAS ISAAC 



Barrow, d.d., the teacher or Sir Isaac Nkwtov. 



' Belle edition '.—liruntt. 



In his most im|K)rUnt work. In Artem, ' the earliest work on symbolic algebrm '. be * ioirodooed Um ww of lettsrs tor 

 both known and unknown (positive] quantities, a notation for the iiowen of attanUtlee, sod salbread the sdrastsge of 

 working with homogeneous et] nations . . . One of his improveinenlH was that be drooCfod tiM known qOMrtitka bjT tiM 

 consonants B. C, D, etc., and the unknown quantities by the vowels A, E. I, ete., tlM OtiMr ««• to IntrodnM nsw q ribo is 

 to represent the sriuare, cube, etc. of (luantities which had already occurred in tiM eqnstloss . . . TImm two Impiwvo* 

 ments were almost essential in any further progress in algebra. . . . Virta'a work* on gaOOMtnT MS food. B»S^fpMaA 

 algebra and trigonometry Ut help him in iuvestlgating the propertiee of flsurea ', eie etc ete.— Ir. W. t. BstL 



• The greatest mathematician of the Sixteenth Century '.—Tknmnti FotcUr, pr. » • » 



5065 De Numerosa Potestatum a<l Exegesim RESOLUTioNE.exOpererestitntieMaUiematwiP 



Analyseos, seu, Algebrft novft, editio princeps, folio (pp. 75), with vellum wrapper from X^. 

 Cent. MS. in gothic characters (very rare), £I. 5» Parisiis, IK Le Clerc, 1000 



' Dealing with numerical equations. In this a ineth'td for approxiiniting to the vslaes of poaitive rooU le g|VM . . . 



The principle is similar to that of Newton's rule.'— H'. If. R. Halt. 



5066 Zeteticorum Libri V ; with diagrams, folio (pp. 47), old rellum wrapper {no tUle) ; RAME, 



155 *. /. aut. t. %, 



This edition is unknown to bibliographers, the Hrst of 1598 eonaUUng of only four books. The work deal* wlUi the 



solution of equations. 



5067 VIGENERE (Blaise de, Rourbonnois)TK\lcvi\ du Feu et du Sel. Excellent et rare Opuscule, 

 trouvd parmy ses Papiers ajires son Deeds ; wUh engraved vignette on title, 4to. old hf. calf gilt 

 {slightly water-stained) ; RARE, £1.5* 1618 



This work conuins the first description of crystallised benzoic add. 'On y trcrave une lecette pour Wre de I'or. — 



the above is the fir.st kditiox, the date of which Is given as 1008 In Biogr. Gin.-* palpsble miaUke u the Privilege f« 

 dated October, 1617. There were reprints iu 1642 and 1651, both of which ue sleo rare. 



