HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37, PICCADILLY, W. 161 



3216 NEWCOMB (Simon ; f.r.s.) Generalized Theory of the Combination of Observations so 

 as to Obtain the Best Result, roy. 4to. (pp. 24), sewn, with author's inscr., 2s Qd 



[Washington, 1880] 



.•?_>17 Popular Astronomy, toith front., 112 woodcuts, and 5 star maps, 8vo. cl.,6s (p. 18s) 1878 



.'J-'18 Second Edition, revised, unthfroyit., 116 woodcuts, and 5 star maps, 8vo. cl. (cover worn), 



8* (p. l&s) 1883 



An invaluable work to the amateur astronomer, including a good bibliography of the best astronomical works, ancient 

 and modern. 



3219 Researches on the Motion of the Moon, made at the U. S. Naval Observatory', 



Washington : Pt. I : Reduction and Discussion of Observations of the Moon before 1750, roy. 

 4to. sewn, &s Qd Washington, 1878 



Helmholtz's Copy : 



3220 Another Copy, sewn, with bookstamp ' H. von Helmholtz,' on cover, Is Qd 



IiivfstiKating the errors of Hansen's Lunar Tables {q. v. ante) as compared with observations before 1750. 



3221 NEW-HOUSE (Capt. Daniel) The Whole Art of Navigation, with the most Useful Tables 

 in Navigation, containing the Application of Geometry and Astronomy to Plain and Mercator's 

 Sailing, with or without the Logarithms, the Description and Use of the most necessary Instru- 

 ments for Observation at Sea, the Explanation of Sea Terms, the Method of finding the Variation 

 of the Compass by the Sun's Azimuth and Amplitude; also of Keeping a Sea-Journal, 3rd Ed., 

 with engravings, and numero^is woodcuts and diagrams, 4to. old sheep {cracked), with bookplate of 

 Philip 2nd Earl Stanhope, F.E.S. (RARK), £1. 11* 6d 1708 



3222 NEWLANDS (John A. R.) On the Discovery of the PeriodIC Law, and on Relations 

 among the Atomic Weiohts, post 8vo. cl. {scarce), 5s 1884 



The i>erio<lic law was discovered simultaneously, but independently of one another, by the author and Prof. Lothar 

 Mever (7. v. ante). 



3223 NEWMAN (Francis William; brother of Cardinal Newman) The Difficulties of Ele- 

 mentary Geometry, especially those which concern the Straight Line, the Plane, and the Theory 

 of Parallels, with 122 illustrations, 8vo. sewn, 3* Qd 1841 



3224 Elliptic Integrals, 8vo. cl., 4s Qd (p. 9*) Cambridge, 1889 



3225 NEWMAN (John, m.i.c.e.) Earthwork Slips and Subsidences on Public Works: their 

 Causes, Prevention, and Reparation, post 8vo. cl., 3* Qd (p. 7* 6rf) 1890 



3226 Metallic Structures: Corrosion and Fouling, and their Prevention, thick 



cr. 8vo. cl., 45 &d (p. 9*) 1896 



3227 Notes on Concrete and Works in Concrete, 2nd Ed., enlarged, post 8vo. cl. {out of 



print), 3s 6d 1894 



3228 NEWTH (George S., F.c.s.) Manual of Chemical Analysis, Qualitative and Quanti- 

 tative, illustrated, post 8vo. cl., 3s Qd (p. 6* 6d) 1898 



3229 Text- Book of Inorganic Chemistry, 10th [last] Ed., enlarged, illustrated, thick post 



8vo. cl., 3s 6d (p. 6* 6d) 1903 



3230 NEWTH (Samuel, d.d., Principal, New College, London) Elements of Mechanics, including 

 Hydrostatics, 6th Ed., numerous diagrams, cr. 8vo. cl., 3s Qd (p. 8* Qd) 1879 



3231 First Book of Natural Philosophy, 8th Ed., with numerous diagrams, post 8vo. cl.. 



Is Qd 1872 



3232 Mathematical Examples, 2nd and corrected Ed., post 8vo. cl., 3s (p. 8* Qd) 1861 



:vi:v,\ NEWTON (Sir Isaac, p.r.s.) Opera quae extant Omnia, Comnientariis illustrabat Samuel 



Horsley, r.s.s. [Episcopus RoffensisJ ; with plates, tables, and diagrams, 5 vols. 4to. old calf 

 gilt (rare), £9. 9* Londini, Nichols, 1779-85 



The only collected edition of Newton's works, now becoming increasingly rare, and first containing his iniiwrtant 

 Geometria Analytica. 



3234 [ ] Analysis per Quantitatum Series, Fluxiones, ac Differentias : cum Enum- 



eratione Linearum Tertii Ordinis [edente William Jones, S.R.S.] , editio princeps ; with vignettes 

 and numerous diagrams, 4to. contemporary hf. binding, uncut {title and some II. slightly ivormed^ 

 and a few II. browned) ; rare, with bookplate of Edward 12th Duke of Norfolk, E.M., £1. 05 



ibidem, 1711 



;{_>35 Another Copy, old calf, with auto, of Francis Horner (1778-1817, M.P., translator of 



Euler's Algebra) on title, £1. 7* 60? 



First edition of Newton's Treatises on the higher mathematics, containing his discovery of the differential calculus. It 

 comprises : ' De Analyst per Aequationes Inflnitas ', ' Fragmenta ISpistolaruni ', ' De Quadratura Curvarum ', ' Enunieratio 

 Linearum Tertii Ordinis ', and ' Methodus Differcntialis'. 



• In his Latin preface Jones gives notes of the earliest applications oi Newton's method, no doubt with some reference to 

 the contest witli Leibnitz which was then preparing '.— D. N. B. 



3236 [ ] Arithmetica Universalis; sive de Conipositione et Resolutione Arithnietica Liber, 



cui accessit Halleiana ^'Equationum Radices arithmetice inveniendi Methodus, editio 

 princeps; unth numerous diagrams, post Svo. old panelled calf, newly rebacked (fine copy) ; 

 rare, I69 Cantabrigice, 1707 



Publisheil by William Whiston, pr., f.r.s., against the author's wishes. 



•It contains important results on the theory of equation.s. Newton showed that in equations with real coefficients 

 imaginary roots always occur in pairs. His inventive genius is grandly displayed in his rule for determining the inferior 

 limit of the number of imaginary roots, and the superior limits lor the number of jKJbitive and negative roots ' , etc. etc. — 

 Prof. Cajori. 



3237 Editio Nova [curante G. J. 's Gravesande] ; with 13 folding plates, 4to. sound copy in 



old vellum, with auto, of Prof Lipschitz, \2s Qd Lugd. Bat., 1732 



'Among the most interesting theorems contained in the work is his attempt to find a rule (analogous to that of 

 Descartes for real roots) by which the number of imaginary roots of an equation can be determined.'— fT. W. R. Ball. 

 The above edition contains an appendix ' De Solutione et Constructione iEquationum Scripta varia ', including con- 

 tributions by Edmund Hallky, John Colson, Colin Maclaurin, ff.r.8., etc. In his prefiace 's Gravesande states that the 

 first edition was published without the author's knowledge or consent— a statement denied by Whiston in his Memoirs. 



