HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 171 



3410 OTTLEY (W. C, Caius Coll.. Cantab.) Treatise on the Differential Calculus, with 



Collection of Examples: on Differential Equations, with Examples: Hamilton (Henry 



Parr, F.R.s., Dean of Saram) ANALYTICAL SvSTEM of CONiC SECTIONS, 3rd Ed.— 3 vols. 8vo. in 1, 

 with diagrams ; hf. morocco gilt, t. e. g., Hs Cambridge^ 1837-2-4 



3411 Treatise on Differential Equations, with Collection of Examples, 8vo. boards, 



2s Qd lb., 1832 



3412 Another Copy, with auto. * J. W. Colenso, St. John's Coll. Cambridge ' [Bp. of Natal], 



35 6d 



3413 Treatise on the Integral Calculus, with a Collection of Examples, Svo. boards, 



Ss 6d ib., 1838 



3414 OUDEMANS (Jan Abraham Christiaan) Besciirijving en Afbeelding van een Uni- 

 versaal-Instrument van Repsold ; with 2 folding plates, roy. 4to. sewn, 4s Leiden, 1852 



Tlie ' universal instrument' was made for astronomical purposes during an astronomical expedition to the Dutch East 

 Indies. 



3415 OVENDEN (— ) : DESCRIPTION of a MACHINE to TRAVEL without Horses : Invented by 

 Mr. Ovenden, at Mr. Jacob's and Viny's, Blackfriars Rd., London, 1 p. of Text, and copperplate, 

 Svo. sewn (very rare), lOs 6d [1774] 



This is probably the earliest foot-driven carriage invented, and as such the forerunner of the bicycle, although both 

 Inventor and invention have fallen into utter oblivion. 



The machine is stated to be 'capable of travelling, with ease, six miles in an hour; and, by a particular exertion of the 

 footman, might travel nine or ten miles an hour on a good road, and evaa would go up a considerable hill.' The master 

 sat in fi out, while the ' footman ' did the work. 



3416 OVERMAN (Frederick, Mining Engineer) The Manufacture of Iron, in all its various 

 Branches, witli Essay on the Manufacture of Steel, 3rd Ed., revised, with 150 woodcuts, 

 roy. Svo. cl., 5s Qd Philadelphia, 1S54 



3417 Practical Mineralogy, Assaying, and Mining, etc., 2nd Ed., fcap. Svo. hf. calf 



gilt, 2.V ibidem, 1854 



3418 OVIDIO (Enrico d') Le ProprietA. Fondamentali delle Curve di Second' Ordine, studiate 

 suUa Equazione generale di second© Grado in Coordinate Cartesiane ; tvith diagrams, Svo. seion, 2s 



Torino, 1876 



3419 OXLEY (Thomas, c.e.) The Celestial Planispheres, or Astronomical Charts, with a 

 complete System of calculating Nativities by the Celestial Planispheres, new and improved Formula3 

 for Astronomical Calculations, choice Astrological Aphorisms, etc. etc. etc. ; with the Supple- 

 ment— 2 vols. Svo. in 1, cl. {wanting plates), 6s 1830 



3420 The Gem of Astral Sciences, or Mathematics of Celestial Philosophy ; with Improved 



Formulae, new and expeditious Tables of Right Ascensions and Declinations of the Planets, etc. etc., 

 4 copperplates, Svo. cl., 8s fid [1848] 



In his preface the author claiiris to be the inventor of ' my Patent American hand Clearing Machines, and hand Clearing 

 Engines for cutting down standing Timber level with the ground, which have been used in the Western World for over a 

 quarter of a century', and of 'my lately patented Self reeling and unret-fing Paddle Wheels, the Submarine Feathering 

 Propeller Wheels, and my Expanding and Contracting Propellers, etc' He also claims to have invented and constructed 

 'the working model of a steam boat, some 10 years before one was seen on the River Thames'. The modest inventor 

 is h.iwever not mentioned in D. N. B. 



3421 OXYGEN:— Beschreibung einiger zum Gebrauch der dephlogistisirten Luft bey dem 

 Blaserohr und Schmelzfeuer eingerichteten Maschinen, samt einer Anweisung sich die 

 dephlogistisirte Luft in Menge zu verschaffen ; with 2 folding plates on copper, 12mo. 

 boards {rare), \2s Qd Tubingen, 1785 



The first part consists of a description of the oxyhydrogen blowpipe, and the second of a machine to produce oxygen iu 

 large quantities, devised by the anonymous author himself. 



3422 OZANAM (Jacques) Dictionnaire Mathematique, dans lequel Ton trouve, outre les Termes 



«de cette science, plusieurs Termes des Arts et des autres sciences ; avec des raisonnemens qui con- 

 duisent peu a pen I'esprit a une connaissance universelle des Mathcmatiques ; with numerous 

 copperplates and woodcuts, 4to. old calf gilt, S* 6d 1691 



3423 [ ] Methode de Lever les Plans et les Cartes de Terre et de Mer ; with copperplates 



of Surveying Instruments, etc., and diagrams, 16mo. fine copy in old calf gilt, with bookplate of 

 Philip 2nd Earl Stanhope, F.R.S. , 6s 1700 



.3424 ■ Recreations Mathematical and Physical ; laying down and solving many Profitable 



and Delightful Problems, done into English, with 27 copperplates, and numerous woodcuts, sm. Svo. 

 old hf. russia, Qs 1708 



3425 New Edition, lately recomposed, ynd greatly enlarged by J. E. MONTUCLA ; and now 



trans., with many Additions and Observations, by CHARLES HUTTON, F.R.S., with 98 folding 

 plates, 4 thick vols. Svo. old calf gilt {broken), \2s6d 1S03 



' I believe that it would be difficult to find in any of the books cuncnt in England on mathematical amusements as 

 many as a dozen puzzles which are not contained in oi.e of Ihes-e four volumes'.— JK. W. It. Ball. The above edition has 

 also been used, and is frequently referred to, in Mr. Ball's MatheTtmtical Recreations and Problems. 



' Cet ouvrage curieux contient la solution d'une foule de problemes. On y trouve encore un traitd de horloges elementaires, 

 une dissertation sur les lampes perpetuello!, enfin un ample recueil de tours de gobelets et descamotage '.— Querard. 



3426 Trait6 de Fortification, contenant les M6thodes ancieimes et modernes pour la Con- 

 struction et la Deffense des Places, et la Manibre de les attaquer ; with 44 copperplates, Svo. old calf 

 gilt, with marginal notes in an old hand, 5s 1694 



3427 L' Usage de Com pas de Proportion, explique et demonstrd d'une Manibre courte et 



facile, et augments d'un Trait6 de la Division des Champs ; dernibre t^d., augmentde; with 2 

 copperplates of the Compass, and numerous diagrams, Svo. old calf gilt, 8s 6d 1736 



The author was a noted m.ithematician of his time, and his name recalls that of Frederic Ozanam and the short-lived 

 Catholic Revival in France under Lacordaire. 



3427*OZANNE (Jeanne Franijoise) Diffeb6nts Sujets de Marine ; with engraved title, and 11 

 copperplates, rrprescnfinq small croft of various rig^ oblorg 12mo. hj. cl.,.\2s6d [c. 1780] 



