HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 203 



4017 BINGELBEKGH (Joachim Sterk van) Institutiones Astronomic.*: ternis libris coutenta', 

 quorum uriuius Sphu^ne ac Mundi Naturum declarat : secundus Orbiura : tertius Circulorum; 

 cum Additionibus et Indice; with Sessa's device on title and blank I. at end, woodcut bonier on 

 sig. A^, and diagrams, IGmo. old limp vellum (rark), 17* 6</ 



[col. .] Venetiis, Ant. de Nicolinis de Sabio, sumptn Melch. Sesste, 15;i5 



4018 RITCHIE (Archibald Tucker) The Dynamical Theory of the Formation of the Earth. 

 2 thick vols. 8vo. cl., uncut (scarce), Ss M 1850 



Attempting to prove ' tliat the uarth did not always rotate round it* axia,* an argument to which UM pp. are deroted. 



4019 RITCHIE (William, f.r.s.) Principles of the Differential and Intbqral Calculus, 2nd 

 [lastj Ed. by J. Anthony Spencer, diagrams, poet 8vo. c/., 3* 1847 



4020 Principles of Geometry, diagrams, post 8vo. ci.,2s6d 1888 



4021 RITT (Georges) PROULkMES d'ALGEBRE, et Exercises de Calcul ALG^iiRiguK, avec lea 

 Solutions, 4e Etl. : B^zout (Etienne) Elements d'ARiTHMtTlQUE, r^iniprimds par J. F. Saiqev. 

 2« El. —2 vols. 8vo. in 1, A/, calf gilt (out of print), 5» 6d 1856-2 



4022 RITTEB (Franz) Astrolabium, das ist : GrUndiiche Reachreibung uud Unlerricht, wie solohati 

 lierrliche und hochnutzliche Astronomi.<)chc Instrument, auffalierley Polus Udh, to wolaaoh nach 

 eines jeden selbst jjefiilligen Gross aullgerissen, und verfertigt werden soil ; with engraved tUU, 

 numerous folding plates on copper, ana woodcuts, cr. 4to. sewn (large and sound copy) ; RARE, 

 ^1. 10* NiirMrg [1618] 



Unknown to FofcgeodorflT, but mcntionM by Urarsse. 



4023 — I Speculum Solis, das ist : Sonnen-Spiegel, der kunstsUindiger, leichter und griindlicher 



Rericht von den SONNENUHREN, und was denselbigen angehiiret ; nunmehr mit deni dritten 

 Theil, allerhand neuer Eefindungen vennehret durth einen Liebhaber deiw Studii Mathe- 

 matici ; with engraved front., and nujncrous woodcuts, sm. 4to. sewn, £i.7t6d ibidtm, 1652 



4024 Dasselbe ; Jine copy in old vellum, £1. Us Qd 



Vkry rare, unknown to PoKgendortf and Graease. The orisiual edition, comprising the flnt 2 part* Ottlf , appcarad la 

 1(309-1 1. The last part contains some curious conceits on sun-dials, including one sounding all boon by alUiar •splodteg 

 a charge of Kunpowder by means of a burning-glass, or by sound caused by steam generated by the aain* mewia ; afiMi how 

 to make a sun-dial out of a sun-ttower, etc. etc. 



4025 RITTER (Heinrich), et Ludwig PRELLER: HiSTORiA PiliLOSOPHl;E GrjecjB: Testi- 



nionia Auctorum, Or. et Lat. [cum Notis] ; Editio VII. [cum Indicibus], curantibiis Fa. BCHULTISS 

 et En. Wellmann, Svo. buckram, 6s 6d (p. M. 11. nett) Gothce, 1888 



4026 RIVARD (Dominique FranQois,, Univ. Paris) Elemens de Geometrie, avec Abebg6 

 d'ARiTHMETiQUE cL d'ALGEBRE, 2^ Ed. aufrmeutde ; with plates, Alo. fine copy in old <xUf aiit, 

 with bookplate of Philip 2nd Earl Stanhope, F.R.S., 5s 1738 



4027 RIVERS (Industrial) of the United Kingdom, by various well-known Experts, 21 plates, 

 Svo. cl., 2s (id (p. Is 6d) 1888 



4028 ROBB (Russell) Electric Wiring for the Use of Architects, Underwriters, and the 

 Owners of Buildings, with 75 illustrations, sq. Svo. cl. (out of print), 4s (p. 10* 6d nett) 



New York, 1896 



4029 ROBERT (Henri) L'Art de connaItre les Pendules et les Montres ; pr6c^6 de TArt de 

 les conduire et regler, par FERDINAND Berthoud, 2e Ed., augmenti^e ; with 4 sttel plates, post 

 Svo. .<iewn, 4a- 6d 1849 



4030 ROBERTS (James, Inner Temple) The Grant and Validity of British Patents for Inven- 

 tions, 7vith woodcuts and diagrams, thick roy. Svo. cl., lis (p. £1. bs nett) 1903 



4031 ROBERTS- AUSTEN (Sir William Chandler, F.R.S.) INTRODUCTION to the Study of Metal- 

 lurgy; 4th Ed., revised and enlarged, with nunurous charts and illustrations, Svo. el.,5t6d 

 (p 155) IW8 



4032 ROBERTSON (Abram, D.D., p.r.s., Savilian Prof Geometry, Oxon.) Elements of Conic Sec- 

 TiONs deduced from the CoNE, and designed as an Intro«luction to the Newtonian Philosophy, 

 \o folding plates, Svo. boards, uncut, 3s 6d Clarendon Press, Oxford, 1818 



4033 Geometrical Treatise of Conic Sections, with Treatise on the Primary Properties of 



Conchoids, the Cissoid, the Quadratrix, Cycloids, the Logarithmic Curve, and the Ix)garithmic, 

 Archimedean, and Hyperbolic Spirals, 28 folding plates, Svo. boards, uncut, or, hf. calf, 6# 



avud eandem, ibidem, 1802 



4031 Sectionum Conicarum Libri VII; accedit Tractatus de Sectionibus Conicis, et^de 



Scriptoribus qui earum Doclrinam tradiderunt ; with 45 folding jUates, 4to. old calf, 10* %b., I i92 



4035 Another Copy, contemporary tree-calf gilt (fine copy), I2s 6d 



• His chief work, with an exhaustive survey of the history of the study. — i>- jv- V.' , . ..... 



4035*ROBERTSON (Frank, R.E., F.R.A.s.) Engineering Notes, Svo. hf. calf gut (stamp on «it^ ; 

 out of print, 3s 6d (p. 12* 6d) . . „ »,, '^5 



4036 ROBERTSON (John, F.R.s.) The Elements of Navigation, containing the Tijeory and 

 Practice, with all the necessary Tables; with Treatise of Marine Fortification, 7th Ed., with 

 Additions by Lt. Lawrence G wynne, r.n., with numerous plates and diagrams, 2 voU. roy. »m 

 old sheep (one V. slightly damaged), 4s 6d , ....,„ ,u ~.kii— ♦i..i ** 



Last edition of the author's chief work, which went through 7 editions within th« first 50 J^.of.'J* P°^"**i"°-, _ 



4037 Treatise of such Mathematical Instruments, as are usoallv put into a fORTABLB 



Case, with Account of the Authors who have treated on the Proportional Compasses and »«cw>Jj 

 first edition, with 1 folding plates, Svo. hf. bound, lOs 6d » »^ n^^^^^nc^ i »« 



Bound up is : Description and Use of Hadley's Quadrant, with a new Additional Apparatus "J.^«^"*S,U bl 

 Theory, by William Jones, plate, 1795; also CaUlogueol Optical, Mathematical, and Philosophical InstruinenU by 

 the sjune, -.wJtA 7/ricc* ri7i)S]. ... . t.i^ .r..^t,^^i^„ *t,» mmrlm 



According to Chaales, Robertson was the first to discover the theorem that in stereog hie projection tna angia 

 between two circles of the sphere equals the angle between the two circlea on proJecUon. ^^ ^ 



