256 HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 



5038 VALLEMONT (Pierre Le Lorrain, Abbe de) Description d' I'Aimant, qui s'est forme k la 

 pointe du Clocher neuf de N. Dame de Chartres, avec plusieurs Experiences tres-curieuses, sur 

 I'Aimant, et sur d'autres matieres de Physique ; with vignette and woodcut, 16mo. old calf, with 

 booklahel of Andre de Champcour (1770-1823), 12s 1692 



Mainly treating of the nature and properties of the magnet. The last chapter suggests its use in finding the 

 philosopher's stone. 



5039 La Physique Occulte, ou Traite de la Baguette Divinatoire, et de son Utility pour 



la Decouverte des Sources d'EAU, des Minieres, des Tresors Cachez, des Voleurs et des Meur- 

 triers fugitifs, avec les Principes qui expliquent les Ph^nom^nes les plus Obscurs de la Nature. 

 Augmente en cette Edition, d'un Traite des Causes Magnetiques, des Cures Sympathiques, 

 des Transplantations, et comment agissent les Philtres, par un CURIEUX de la Nature ; with 

 engraved title and copperplates, thick 16mo. old boards, uncut (RARE), £1. Is 1696 



The FIRST WORK on the Divining Rod, containing also a number of physical experiments with it. * Lorsque parut ce 

 livre, le public s'occupait beaucoup de la baguette divinatoire qu'un paysan de Saint-Veran,en Dauphine, nomme Jacques 

 Aymar, venait de mettre en vogue, en operant par ce moyen des d^couvertes merveilleuses '.—Brunei. 



5040 VARIGNON (Pierre ; f.r.s.) Eclaircissemens sur I'Analyse des Infiniment Petits [et 

 sur le Calcul Exponentiel de Bernoulli] ; with 6 plates, 4to. old calf [binding slightly 

 damaged) ; rare, \0s " 1725 



'Ses Eclaircissements mirent desormais a I'abri de toute contestation la decouverte de Leibniz et de Newton.' — 

 Biogr. Gen. 



5041 , NOUVELLE Mecanique OU Statique, dont le Projet fut donne en 1687 [publiee, avec 



Eloge, par DE Beaufort et I'Abb^ Camus] ; with 64 plates, 2 vols. 4to. contemporary calf gilt 

 {fine copy), with bookplate of Philip 2nd Earl Stanhope, F.B.S., lis 172> 



Dedicated to Sir Isaac Newton. * He simplified the proofs of many of the leading propositions in mechanics, and recast 

 the treatment of the subject, basing it on the composition of forces.' — W. W. R. Ball. 



5042 VATJBAN (Sebastien le Prestre de, Marichal de France) CEuvres Militaires (Attaque et 

 Defense des Places, Mines) ; nouvelle ]£d., par [le General] E. P. FOISSAC [-Latour] ; with 

 numerous folding plates, plans, etc., 3 vols. 8vo. hf. russia (SCARCE), £1. Is An ///[1795] 



Ihe first collected edition of Vauban's military works, with numerous valuable notes and tables by the editor. They 

 form perhaps the most important contribution ever made to the science of fortification. 



5043 VEGA [Georg Freiherr v.) Sammlung mathematischer Tafeln, als neue und vollig 

 umgearbeitete Auflage der grosseren Logarithmisch-Trigonometrischen Tafeln herausg. von J. A. 

 Hulse, roy. 8vo. hf russia gilt [nice copy), Is Qd Leipzig, 1840 



5044 Thesaurus Logarithmorum Completus, ex Arithmetica Logarithmica, et ex Trigono- 



metria Artificial! Adriani Vlacci collectus, pluribus Erroribus purgatus, in Novum Ordinem 

 redactus [Latine et Germanice], editio princeps, folio (pp. 715), original boards (rare), £2. 15* 



Lipsim, 1794 

 5045 Another Copy, new hf. calf antique (an unusually sound and clean copy), £3. Zs 



• Vegas voUstandigstes und bedeutendstes Werk. . . . Man findet darin Tafeln fiir Kreisbogenlangen, eine umfassende 

 Sammlung trigonometriseher Formeln und Wolframs hyperbolische Logarithmen der Primzalilen '. — Prof. Moritz Cantor. 



5046 VEGETIUS Renatus (Flavius) De Ke Militari . Sexti Julii Frontini de Strategematis . 

 Aeliani de Instruendis Aciebus . Modesti de Vocabulis Rei Militaris, prseclara opera 

 nunc denium ad nmltorum vett. Codd. fidem recognita et castigata [a Godefrido Hittorpio] ; 

 printed in italics, with large ivoodcut initials, 12mo. fne copy in old limp vellum, with auto. 

 • Sylvius Fontruicus, 1579 ', 7^ 6^ • ' Colonice, 1532 



5047 — — ;— , et Alii aliquot Veteres : De Re Militari Libri ; accedunt Frontini Strategemata 

 et alia Opuscula, omnia emendatiiis, qujedam nunc primiim edita h, Petro Scriverio, cum 



, Commentariis aut Notis GoD. Stewechii et Fr. Modii ; with numerous woodcuts, thick 4to. old 



vellum (some II. inked, otherwise a fine copy), with old bookplates of James Carrington, Chancellor 



of Exon., and Henry John Beaumont Swete, 15s [Ltigd. Bat.], ex off. Plantiniana, 1607 



First edition with the celebrated commentary by Stewechius, which has often been republished. The above edition is 



moreover very interesting for the numerous good woodcuts of war-engines, ancient warfare, etc. which it contains. 



VENTURI (Giovanni Battista) Experimental Enquiries concerning the Principle of the 

 'Lateral Communication of Motion in Fluids (l799)-r. Smeaton, ante. 



5048 VENTTJROLI (Giacomo, sacerdote Bolognese) Breve Compendio di tutte le Regole dell' 

 Aritmetica Prattica, necessario h qualunque persona desidera d'apprendere presto i veri Modi 

 di Conteggiare, cavate da' piii celebri Autori, che tin' hora habbino scritto ; aggiontivi alcuni 

 Quesiti tin' ad' hora da gli altri Scrittori male intesi ; with woodcut arms on hf title, sm. 4to. old 

 limp vellum [water-stained and a few II. wormed, but a large and otherwise sound copy), 185 



Bologna, 1662 



5049 Another Cop^y, with Ordini ARiTMETici,.sm. 4to. '63: Dialogo Aritme'tico, nel 



quale si contengono i veri Fondamenti dell' Arte, 2^^ Impressione, 12mo., '64: Scorta di 

 EcoNOMiA, o' sia Dialogo di Scrittura Famigliare, sm. 4to., '66—4 vols. sm. 4to. in 1, with 

 woodcut arms on half-titles ; old Italian vellum, £3. 35 ibidem, 1662-6 



All excessively rare, and quite unknown to bibliographers, Poggendorff, Prof. M. Cantor, etc. ; nor is the author 

 included in the ' List of loSO Names of reported Authors etc. of Works on Arithmetic ' in Prof, de Morgan's Arithmetical 

 Hooks. 



The first work, which is on book-keeping, was unknown to Mr. Richard Brown, and is not contained in the bibliography 

 of his ' History of Accounting'. 



5050 VENTTJROLI (Giuseppe, Bologna) Elements of Practical Mechanics, with Treatise on 

 the Principle of Virtual Velocities, and its Uses in Mechanics, trans, by Daniel Cresswell, 

 D.D., F.R.S., 4 plates, 8vo. cl., 3s Cambridge, 1823 



6051 VERONESE (David, di Genova) Libretto d'ABACO, per Principianti, 12mo. old limp vellum 

 [name cut out of title), £1. Is Genova, 1626 



Very rare, and unknown to Brunet, Gracsse, Poggendorflf, Prof, dc Morgan, etc. On page 52 is a table showing the 

 value of the coins of various countries. 



