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



1944 HO ARE (Charles, C.E.) The SLIDE-RULE, and how to use it, with slide-rule in pocket, post 8vc5.- 

 d 25 1875 



1945 HOBBES (Thomas, of Malmesbary) OPERA PHILOSOPHICA, qiue Latine scripsit, OMNIA, ante 

 quidem per partes, mine autem, post cognitas omnium Objectiones, conjunctim et accuratiiis 



, . J ; * .^ . , ,. -/ 7, ,. . _ .** 7 .7 .-/_.-- .__ J _ f / - j. / 



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 ; Dialog! VI de emendatione Geometries hodiernai contra Wallisium de Corpore ; 

 de Ilomine. 



194(5 ELEMENTS of PHILOSOPHY, the First Section, concerning BODY, with Sr.x LESSONS to the 



PROFESSORS of MATHEMATICKS of the Institution of S^ Henry Savile, in the University of Oxford, 

 with numerous folding plates, '56: 2T1TMAI, 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, MENDACLA, 

 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. 5s R. and W. Let/bourn, 1656^4. Crooke, 1657 



' The Tract of HEXRY STUBBE, which follows Hobbes's Stigmai in this volume, is me 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 tho.se in the British Museum & Bodleian Library & another 

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

 Ihis is in fact the only perfect 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, 

 JA CROSSLEY [Founder and President of the Chetliam Society]. 3rd Ap\ 1849.' Inscr. on flyleaf. 



1947 [ ] Lux MATHEMATICA: excussa Collision i bus JOH. WALLISII, D.D. et Thomte Hobbesii, 



multis et fulgentissimis aucta radiis Authore R. R. ; adjuncta est Censura Doctrinre \Vallisiana3 

 de Libra, cum ROSETO HOBBESII, editio princeps; with plate and numerous diagrams on copper, 

 sm. 4to. hf. brown calf gilt (nice large copy), Is 6d Londini, 1672 



Written at the age of eighty-four. 



1948 [ ] De PRINCIPIIS et RATIOCINATIONE GEOMETRARUM, ubi ostenditur incertitudinem 

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

 Contra fastum Professorum Geometric, 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.R.S., 12,9 Qd ibidem, 1666 



1949 QUADRATURA ClRCULI, CUBATIO SPELEILE, DUPLICATIO CUBI, breviter DEMONSTRATA, 



editio princeps, 4to. (pp. 20), hf. brown calf extra (nice large copy), 10s 6d ib., 1669 



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 'Thoime Hobbes Quadratura Circuli, etc. confutata" (q. v.post). 



1950 ROSETUM GEOMETRICUM, sive Propositionea aliquot frustra antehac tentatse, cum 



CENSURA brevi DOCTRINE WALLISIAIUE de Motu, editio princeps ; with numerous diagrams on 

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



1951 THREE PAPERS presented to the ROYAL SOCIETY AGAINST DR. WALLIS, with Considera- 

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

 copy], 15s Printed for the Author, 1671 



Added is a broadsheet, dated April 20, 1674: 'Epistola Thomre Hobbes ad Dom. Antonium a Wood,' 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 things, contain acute remarks on 

 points of principle.' Prof, de Morgan. 



1952 HOBBS (William) A NEW DISCOVERY for FINDING the LONGITUDE, with 2 plates of the 

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



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

 into 100 parts, 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 ; pr. t Balliol Coll.) DICTIONARY of SCIENTIFIC TERMS, post 8vo. 

 cl., 3s 1849 



1954 HODGE (Paul R., c E.) ANALYTICAL PRINCIPLES and PRACTICAL APPLICATION of the 

 EXPANSIVE STEAM ENGINE, as employed in Pumping, Manufacturing, NAVIGATION, RAILWAY 

 LOCOMOTION, etc., with 8 folding plates, and diagrams, 4to. hf. roan, 4s 6d (p. 3.) 1849 



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



1955 HODGES (John A.) PICTORIAL LANDSCAPE PHOTOGRAPHY, front, and 36 other illustrations, 

 8vo. buckram, 2s 6d (p. 5ft) Chicago, 1901 



1950 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 Ascensions, etc. of some Eminent Fixed Stars, and the 

 Latitudes of several Ports and Cities, with their Longitudes [also a TRIANGULAR CANON 

 LOGARITIIMICAL] ; plates and numerous diagrams (some with MOVEABLE SLIPS), thick sm. 4to. old 

 sheep (joints cracked), 12s Qd 1706 



The author was Master of the Mathematical School at Christ's Hspital, 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, 8vo. cl., 6s (p. 8s Gd nett) [1899] 



1958 PHYSICAL CHEMISTRY in the SERVICE of the SCIENCES; trans, by ALEXANDER SMITH, 



with portrait, ard plate illustrating ' tin disease,' 8vo. cl , 5s 6d (p. 7s 6d nett) 



Univ. Press, Chicago, 1 903 



