98 HENRY SOTHERAN & CO., 140, STRAND, W.C., and 37, PICCADILLY, W. 



1944 HOABE (Charles, c.E.) Tlie Slide-Rule, and how to use it, with slide-rule in pocket, post 8vo- 

 cl, 26- 1875 



1945 HOBBES (Thomas, of Malmesbury) Opera Philosophica, <iu;e Latiiie scripsit. Omnia, ante 

 (luideiu per partes, nunc auteni, post cognitas omnium Objectiones, conjunctim et accuratiiis 

 edita; vntli numerous folding plates and smaller engravings on copper^ sm. 4to. old hf calf {title 

 and first I. slightly mended, and some II. wormed), with auto. J[AME.s] Stirling [f.r.s., author of 

 ^ Methodus Differentialis"']; rare, 105 6c? Amst., Joa. Blaeu[a la sphere], 1668 



Vol. I of the FIRST COLLECTED EDITION, which had to be printed abroad, Hobbes having been forbidden to publish it at 

 home. It contains Problemata Physica ; Dialogi VI de emendatione Geometria^ hodiernii; contra Wallisium de Corpore ; 

 «le Ilomine. 



1940 Elements of Philosophy, the First Section, concerning Body, with Six Lessons to the 



Professors of Mathematicks of the Institution of Sr Henry Savile, in the University of Oxford, 

 with numerous folding plates, '56: STirMAl, or Markes of the Absurd Geometry, Rural 

 Language, Scottish Church-Politicks, and Barbarismes of John Wallis, Professor of 

 Geometry and Doctor of Divinity, '57: [Stubbe (William)] Clamor, Rixa, Joci, Mendacia, 

 FuRTA, Cachini, or a Severe Enquiry into the late Oneirocritica : or an Exact Account of the 

 Grammatical Part of the Controversy betwixt Mr. Hobbes and J. Wallis, D.D. {containing both 

 titles), no printer, '57 — 3 vols. 4to. in 1, VERY TALL AND CLEAN COPY in old calf {joints cracked) ; 

 a very rare collection, £5. 6s R. and W. Leybourn, 1656—^. Crooke, 1657 



' The Tract of Henry Stibbe, which follows Hobbes's Stiginai in this volume, is one of the rarest Tracts in the English 

 Language. It is also exceedingly interesting from the Learning and Causticity which it displays The only other Copies 

 I ever saw, having sought & advertised for it for years, are those in the British Museum & Bodleian Library & another 

 which I obtained from Henry Bohn, all of which however are imperfect, wanting the postscript from p. 17 to 38 so that 

 this is in fact the only perfe:t copy known. I advised Sir William Molesworth to reprint it in his Edition of Hobbes's 

 Works. He has not done so, but the reprint of the Stigmai in his Edition was from the Copy in this Volume,— 

 Jas Crossley £Foini'ier and President of the Chetlw/iu Society]. 3r<l Apl 1849.' — Inscr. on flyleaf. 



1947 [ — ; — ] Lux Mathematica: excussa Cwllisionibus JoH. VVallisii, d.d. et Thoma? Hobbesii, 

 niultis et fulgentissimis aucta radiis Authore R. R. ; adjuncta est Censura Doctrinaj Wallisiana? 

 de Libra, cum Roseto Hobbesii, editio princeps; ivith plate and numerous diagrams on copper, 

 sm. 4to. hf brown calf gilt {nice large copy). Is Qd Londini, 1672 



Written at the age of eighty-four. 



1948 [ ] De Principiis et Ratiocinatione Geometrarum, ubi ostenditur inceititudinem 



falsitatemque ; non minorem inesse scriptis eorum, quam scriptis Physicoruni et Ethicorum. 

 Contra fastum Professorum Geometric'e, editio princeps ; with plates and diagrams on copper, 

 sm. 4to. old sheep {margins of some II. wormed^ but a tall and sound copy^, with bookplate of Philip 

 2nd Earl Stanhope, F.B.S., \2s Qd ibidem, 1666 



1949 QuADRATURA CiRCULi, CuBATio SpH^R.E, DuPLicATio CuBi, breviter demonstrata, 



editio princeps, 4to. (pp. 20), hf brown calf extra {nice large copy), \Qs Qd ib., 1869 



This pamphlet, containing the philosopher's singular notions on the quadrature of the circle, and other geometrical 

 fallacies, was answered by John Wallis in his 'Thom.e Hobbes Quadratura Circuli, etc. confutata' (7. v. post). 



1950 RosETUM Geometricum, sive Propositiones aliquot frustra antehac tentata3, cum 



Censura brevi Doctrin.*: Wallisian^e de Motu, editio princeps ; with numerous diagrams on 

 copper, 4to. (pp. 68), hf. broirn calf extra {nice large copy), 8s Qd ib., 1671 



1951 Three Papers presented to the Roval Society against Dr. Wallis, with Considera- 

 tions on his Answer to them, first edition, icith diagrams, 4to. hf. brown calf extra {nice large 

 copy), \os Printed for the Author, 1671 



Added is a broadsheet, dated April 20, 1074: 'Epistola Thoina' Hobbes ad Dom, Antonium a Wootl,' also two broad- 

 sheets ' To the Learned Members of the Royal Society.' 



* Hobbes was very wrong in his quadrature ; but, though not a Gregory St. Vincent, he was not the ignoramus in 

 geometry that he is sometimes supposed. His writings, erroneous as they are in many tilings, contain acute remarks on 

 points of principle.'— P7-o/. de Morgan. 



1952 HOBBS (William) A Ne\v Discovery for Finding the Longitude, with 2 plates of the 

 spring-movement, sm. 4to. (pp. 7), sewn {rare). Is (id 1714 



The method advocated was by means of a curious watch (worked in conjunction with a chronometer) which is divided 

 into 100 pnrts, and of which one hand moves to one part, while the other moves over the whole hundred. The illustration 

 gives particulars as to its construction. 



1953 HOBLYN (Richard Dennis ; ^r., Balliol Coll.) Dictionary of Scientific Terms, post 8vo. 

 cl., ^s 1849 



1954 HODGE (Paul B., c.E.) Analytical Principles and Practical Application of the 

 Expansive Steam Engine, as employed in Pumping, Manufacturing, Navigation, Railway 

 Locomotion, etc., with S folding plates, and diagrams, 4to. hf. roan, As %d (p. £3.) 1849 



An early treatise on the advantage of'using steam expansively, so greatly developed since in tne compound engine. 



1955 HODGES (John A.) Pictorial Landscape Photography, front, and 36 other illustrations, 

 Svo. buckram, 2.? Qd (p. 5.s) Chicago, 1901 



19"6 HODGSON (James, f.r s.) The Theory of Navigation Demonstrated: and its Rudiments 

 Clearly and Plainly Proved, from the First and most Simple Principles of the Mathematicks, with 

 Rules and Tables, Catalogue of the Right A.scensions, etc. of some Eminent Fixed Stars, and the 

 Latitudes of several Ports and Cities, with their Longitudes [also a Triangular Canon 

 Logarithmical] ; plates and numerous diagrams {some with moveable slips), thick sm. 4to. old 

 sheep {joints cracked), 12s Qd 1706 



The author was Master of tlie Mathematical School at Christ's Hospital, and a friend of Flamsteed, whose niece he 

 married. 



1957 HOFF (Jacobus Hendrik van 't) Lectures on Theoretical and Physical Chemistry, 

 trans, by R. A. Lehfeldt, Part II : Chemical Statics, diagrams, Svo. cL, Qs (p. 8^ Gd nett) [1899] 



1958 Physical Chemistry in the Service of the Sciences; trans, by Alexander Smith, 



ivith portrait, and plate illustrating 'tin disease,' Svo. cL, 5s Qd (p. 7s Qd nett) 



Univ. Press, Chicago, 1903 



