HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37, PICCADILLV. W. 303 

 5938 BAILEY (George Herbert) New Matriculation Chemistry, edited h\ William Briggs, 



F.R.A.s., 2n(l E<1., rewritten, ivith 83 tcoodcuts, cr. 8vo. c/., 2* 6d (p. 55 6d) ' 1905 



r,939 The Tutorial Chemistry, ed. by William Briggs, f.r.a.s. ; 2nd Ed., rewritten, with 



203 woodcuts, 2 vols. cr. 8vo. c/., 3* 6d (p. 7*) 1904-5 



5940 BAILLY (Jean Sylvain) Traite de rAsTRONOMIE Indienne et Orientale, 4to. contemporary 

 hf. calf gilt (rare), €1. \s yj^ 



' Reinpli de recherches d'ermlition fort instructivas, et qu'un astronoine kcuI pouvait faire.'— Bfo<7r. Univ. 



The author played an Important part in the French Revol iti<in ; lie was elected Presiileiit of the Natiunal Assembly on 

 June 17th. 1789, and Mayor of Paris the sam.j year, but finally fell a victim to the mob, and was guillotiued in 1793, after 

 the usual Jacobin insults, which made Carlylo exclaim : * Crueller end had no mortal.' 



5941 BAIN (Alexander) Account of some Rem ark able Applications of the Electric Fluid to 

 the Useful Arts ; with a Vindication of his Claim to be First Inventor of the Electro- 

 Magnetic Printing Telegraph, and also of the Electro- .Magnetic Clock, by John 

 Finlaison, Actuary of the National Debt Office, with 5 large folding plates, post 8vo. sewn, with 

 inscr. to Earl Russell (very scarce), £1. Is 1843 



'To the Rij^ht Honourable The Lord John Russell with the author't* most respectful complimonta.'— 7iucr. onflyleaif. 



The inventor was a Ciithnessshire man, and apparently no connexion of his contemporary namesake the Rector of 

 Aberdeen University. 



' He was one of the Hrst to devise a meth(xl by which a number of clocks could be worked electrically from a standartl 

 time keei)er ... He discovered independently the use of the earth circuit. Electric tlre-alanns an«l soundinK apparatuii 

 were also among his inventions. His most important invention wa^^ the chemical telegraph of )843. This apparatus 

 could l>e wnrkt-d at a speeil hithcrtfj iint'ossible, and its invention cfrtainly entitles Rain to the cr«lit of Iwing the pioneer 

 of modern high-speod telegraphy . . . Perhaps the most valuable part of the invention conKist»«d in the uxe of stripa of 

 l)erforated jMiper for the transmission of the message. This contrivance was long after atloptetl by Wheatstone, and Is in 

 use in all the existing high-speed systems of telegraphy.' — /). A'. Ji. 



r)042 BAINES (O. N.) Beginner's Manual of Submarine Cable Testing and Working, 2nd Ed., 

 irith diagrams, 8vo. cl.. As (j). 7? 6rf nett) [1903] 



.')i)i3 BAKER (Henry Frederick, f.r s.) Abel's Theorem and the Allied Theory, including the 

 Theory of the Theta Functions, ivith diagrams, impl. 8vo. c/., uncut, £1. 



Univ. Press, Cambridge, 1897 



.'")944 BAKER (Moses Nelson, Editor Engineering News, N. Y.) The MANUAL of American 

 Water-Works, 1897, compiled from special Returns, thick 8vo. cl., 4«(p. 15«) Neu- York, 1897 



.")945 BAKER (Thomas, pr.) The Geometrical Key : or the Gate of Equations Unlock'd : a New 

 Dlscovery of the Construction of all Equations, how.soever affected, not exceeding the fourth 

 Degree, and the findin^j of all their Hoots, as well false, as true ; without the use of Mesolal)e, 

 Trisection of Angles, r( eduction. Depression, or any other previous preparation of Equations, 

 hy a Circle, and any (and that hut one only) Parabole. And this, by one only General 

 Kule ; than which a more simple, more perfect, more general, more easie to be understood, or 

 more fit for practice, cannot be devised or wished for ; with Demonstrations, Figures, etc. etc. 

 [with Latin Translation on opposite pp], vith 10 folding plates, sm. 4to. handsomely bound 

 in hf. red Levant morocco extra, rough g. e., oy Zaehnsdorf {VERY RARE), £1. 10« J. Playford, 1684 

 'the leading idea of Baker's work is the solution of biquadratic equations (and thoxe of a lower deKree)by a (geometrical 

 construction, a parabola intersected by a circle. The method is distinRUish^J from that of Descartes by not requiring the 

 equation to be previously deprived of its second t«rm. Tlie general principle is worked out in great detalL . . . Some 

 account of the work is given in the Transactions of the Rotfol Society.'— D: N. U. 



5946 BAKER (Thomas, c.e.) Principles and Practice of Statics and Dynamics, with Central 

 forces and Super- Elevation of Exterior Kail, diagrams, fcap. 8vo. hf. morocco, 2s 6d 1851 



5947 Railway Engineering ; or Field Work preparatory to the Construction of Railways, 



containinj' the original and most ai»prove<l Methods of Laying out Railway Curves, etc. etc., with 

 General Table for the Calculation of Earthworks, Tunnelling, and Investigation of the Formula 

 for the Superelevation of the Exterior Rail in Curves, diagrams, 8vo. d. (scarce), Ss6d 1848 



In his preface the author claims the invention of the methods of laying out railway curves aa they were then genemlly 

 adopte<l in practice. 



5948 Rudimentary Tre.vtise on Land and Engineering Surveying, new Ed., by 



E. Nugent, with 4 plates and numerous woodcuts, fcap. 8vo. hf morocco, *2s 1876 



5949 BAKEWELL (Frederick C.) Elecfric Science : its Historj-, Pbenomena, and Applications, 

 with W2, full-page and other woodcuts, 8vo. cl., 2s 1853 



5950 Great Facts: a popular History of the most remarkable Inventions during the present 



Century, with front, and numerous woodcuts, cr. 8vo. cl., g. e., Ss 1859 



5951 BALASSI (Felice Lnigi, da Forli, Congr. SS. Salvator) Nova Mechanica Theoremata 

 atque Problemata, de quibusdam Proprietatibus Circuli, Curvanini Secundi Gradus, Parabolns 

 Quadratico-cubica*, et Cycloidis, deque Curvis a Centre Gravitatis descriptis sub Datis Condi- 

 tionibus ; with vignette on title and 2 folding plates, 4to. (pp. 108), sewn, 5s Homo;, 1768 



5952 BALDWIN (Thomas) Airopaidia : containing the Narrative of a Balloon Excursion from 

 Chkstkr, September 8tli, 1785, taken from Minutes made during the Voyage ; Hinte on the 

 Improvement of Balloons and Mode of Inflation by Stea.m ; Means to prevent their 

 Descent over Water, occasional Enquiries into the State of the Atmosphere favouring their 

 Direction, with various Philosophical Olwervations and Conjectures ; also the MENSURATION of 

 Heights by the Barometer, made plain ; with extensive Tables ; the whole serving as an 

 Introduction to Aerial Navigation ; with copious Index, unth fine folding plate by Stothard, 

 and map, Svo. boards, uncut {2 plates wanting) ; with inscr. • From the Author \ RARE, £1. 10* 



^ . X /- ^ (7Ae«<gr, 1786 



' He supgests balloon geography, in which maps shonld be drawn with a camera obscanL aided by a micrometer applied 

 to the undersde of the transparent glass ; and notices the predilection balloons have for becoming stationary, even In a 

 strong gale, over channels and rivers'. — Hatton Tumor. 



