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



5038 VALLEMONT (Pierre Le Lorrain, Abbe de) DESCRIPTION d' 1'AiMANT, qui s'est form6 a la 

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

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

 booklabel 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 Phe"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 parnt ce 

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

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



5040 VARIGNON (Pierre ; F.R.S.) ECLAIRCISSEMENS sur 1' ANALYSE des INFINIMENT PETITS [et 

 sur le CALCUL EXPONENTIEL de BERNOULLI] ; with 6 plates, 4to. old calf (binding slightly 

 damaged) ; rare, 10s 1725 



'Ses Edaircissemfnts mirent desormais a 1'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 1'ABBE CAMUS] ; with 64 plates, 2 vols. 4to. contemporary calf gilt 

 (fine copy), with bookplate of Philip 2nd Earl Stanhope, F.E.S., 14s 172-5 



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.' IT. W. R. Ball. 



5042 VAUBAN (Sebastien le Prestre de, Marechal de France) CEUVRES MILITAIRES (Attaque et 

 Defense des Places, Mines) ; nouvelle Ed., par [le GENERAL] E. P. FOISSAC [-LATOUR] ; with 

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



The 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), 2s 60? Leipzig, 1840 



5044 THESAURUS LOGARITHMORUM COMPLETUS, ex Arithmetica Logarithmica, et ex Trigono- 



metria Artificiali ADRIANI VLACCI collectus, pluribus Erroribus purgatus, in Novum Ordinem 

 redactus [Latine et Germanice], editio princeps, folio (pp. 715), original boards (RARE), 2. 15s 



Lipsice, 1794 

 5045 ANOTHER COPY, new hf. calf antique (AN UNUSUALLY SOUND AND CLEAN COPY), 3. 3s 



1 Vegas vollstandigstes und bedeutendstes Werk. . . . Man findet darin Tafeln fur Kreisbogenlangen, eine umfassende 

 Sammlung trigonometrischer Formeln und Wolframs hyperbolische Logarithmen der Priinzajilen '. Prof. Moritz Cantor. 



5046 VEGETIUS Renatus (Flavins) De RE MILITARI . Sexti Julii Frontini de STRATEGEMATIS . 

 Aeliani de INSTRUENDIS ACIEBUS . Modesti de VOCABULIS REI MILITARIS, praeclara opera 

 nunc demum ad multorum vett. Codd. fidem recognita et castigata [a GODEFRIDO HITTORPIO] ; 

 printed in italics, with large woodcut initials, 12mo. fine copy in old limp vellum, with auto. 

 ' Sylvius Pontruicus, 1579 ', Is Qd Coloniw, 1532 



5047 - , et Alii aliquot Veteres : De RE MILITARI Libri ; accedunt Frontini STRATEGEMATA 

 et alia Opuscula, omnia emendatius, qusedam nunc primum 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 \Lugd. 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 (1799) v. SMEATON, ante. 



5048 VENTTJBOLI (Giacomo, sacerdote Bolognese) BREVE COMPENDIO di tutte le Regole dell' 

 ARITMETICA PRATTICA, necessario a qualunque persona desidera d'apprendere presto i veri MODI 

 di CONTEGGIARE, cavate da' piu celebri Autori, che fin' 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), 18s 



Bologna, 1662 



5049 ANOTHER COPY, with ORDINI ARITMETICI, sm. 4to. '63: DIALOGO ARITMETICO, nel 



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

 ECONOMIA, o' sia DIALOGO di SCRITTURA FAMIGLIARE, sm. 4to., '664 vols. sm. 4to. in 1, with 

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



AM, EXCESSIVELY RARE, and quite unknown to bibliographers, Poggendorff, Prof. M. Cantor, etc. ; nor is the author 

 included in the ' List of 1580 Names of reported Authors etc. of Works on Arithmetic ' in Prof, de Morgan's Arithmetical 

 Books. 



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 VENTITROLI (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, Svo. cl., 3s Cambridge, 1823 



5051 VERONESE (David, di Genova) LIBRETTO d'ABACO, per Principianti, 12mo. old limp vellum 

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



VKRY RARE, and unknown to Brunet, Gracsse, Poggendorff, Prof, dc Morgan, etc. On page 52 is a table showing the 

 value of the coins of various countries. 



