HENKY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 41 



783 CHILDREN (John George, f.r.s. ; Brit. Mus.) Account of Experiments >vitli a Large 

 Voltaic Battery, 4to. (pp. 14)^ sewn, Qs Qd 1815 



' To Tho* Allan Esqr« [f.r s., mineralogist] fron> his sincere Friend J. G. Children.'— /««cr. on title. 



' On 2 July 1813 Children put in action the largest galvanic battery then construct«'d, each plate presenting 32 square 

 feet of surface. Tfie remarkable results obtained are recorded in the 'Phil. Trans.' for 1815. For these he received in 1823 

 the Royal Institution medal.'— 1>. X. Ji. 



784 CHISHOLM (Henry "William) On the SCIENCE of Weighing and Measuring, and Standards 

 of Mejisure and Weight, front, and 45 illvstrathns^ post 8vo. d. (^scarce), on 1877 



TS.") CHLADNI (Ernst Florens Friedrich) Die Akustik ; ivit/i engraved portrait, and! plates, 4ti). 

 boards, uncut, \{)s (Sd Leipzig, 1S02 



FiKKT Edition of this most impoitant work, one of the earliest systematic treatises on the subject, and containing 

 tlje author's investigat'ons on tlie longitudinal waves of stringed instruments. 



7s(j Entdeckungen iilier die TllEORiE de^^ Klanges ; with 11 copperplatesy 4to. original 



wrapper, UNCUT (RARE), £1. 5s ibidem, 1787 



First Edition of the author's fli-st and moht important work, in which ho laid the foundation of the theory of sound. 

 The plates depict for the first time the acoustic phenomenon so well known as ' Chladni's ligures*. 



'The father of modern acoustics.' — I'lof. Tiindull, who gives a full account, of the above work in his ' Sound ', pp. 135--1JO. 



787 CHOaUET [(Charles) et [Mathias] MAYER [d'ALMBERT] : Traite 1i:lementaire 

 dAL(;i;nuK. 5^ idernierej Ed., au<,Miicntee, Svo. /(/*. calf gUt, '^s Qd 1849 



788 CHRISTMANN (Wilhelm Ludwig) Cabbala Algebraica, ssive Sursolida^ .Kquationis et 

 Altionuii Resolutio Alj^ebraica, 4t<). boards, \()s Qd Stuttgardia-, 1827 



789 CHRYSTAL (George), and William Napier SHAW, f.r.s. : Electricity, Electrometers, 

 M.vgnktism, and Electrolysis (Hep. from ' Ency. Brit.'), woodcuts, etc., 4to. boards, Ss (p. 5s 

 nelt) ' 1894 



790 CHUBB (John) On the Construction of Locks and Keys, 10 illustrations, 8vo. (pp. 36), d. 

 (name cut off title), scarce, 5s [1850] 



'A valuable paper, containing lists of all British patents relating thereto, and all communications to the Society of 

 AiU. For this he was awarded the Telford silver medal '.—D. N. B. 



791 CIACCHI (Giuseppe) Regole Generali d'ABBACO, con un breve Trattato di Ceometria, e Modi 

 (Id niisurare le superiicie de' terreni, e corpi solidi ; 2uith coloured arms on title, and woodcuts, 

 rjiiio. old vellum [binding damaged). Vis Firenze, 1675 



A rare work, unknown to Poggeudorff and Prof, de Morgan. 

 79:.* CIRCLE (The) of the Sciences : a Cyclopaedia of Experimental, Chemical, Mathematical and 

 Mechanical Philosophy, >vith Intro, by Henry Lord Brougham, /ne steel portraits of Faraday, 

 Brevater, and Lord Brougham, plates, and woodcuts, 4to. cL, 3* %d (p. 8* Qd) n. d. 



793 CIVIL ENGINEER (The) and ARCHITECT'S JOURNAL, Vols. I— Vlll, it^ith plates and 

 numerous I'-oodcuts, 8 vols. 4t<). c'/.,15* 1837-45 



794 ENGINEERS, The Education and Status of, in the United Kinj^^dom and in Forei^m 



Conntries, 8vo. cL, 3s 1870 



A COMPLETE SET TO DATE : 



795 (INSTITUTION of), MINUTES of PROCEEDINGS of the; from its 



beginning in 18:^7 to 1905, 161 v. Subject Index to vv. I-CXVIII, 2 v., Name 

 Indkx to vv. I-LVIir, 1 V. — together 1G4 vols. 8vo. with an immense number of large 

 plates and plans, besides cuts; cl. (very scarce), £47. 10s 1837-1905 



THB KAHLY VOI.fMKS ARE EXTRKMELY SCARCE. 



' This valuable publication contains the history and description of the greatest engineering works of the greater part of the 

 lastcentury, the greatest engineering ei)Och in the history of the woild. There is no otlier publication of its kind that can 

 b«'ar the least comparison with it. From the time of Teiforrl, Robert Stephenson and Brunei, to that of the eminent men 

 of the present day, scarcely a work has been accou'plished but it is fully described and carefully illustrated here.' 



A further most interesting feature is the full and intimate biographies of deceased members of the Institution. 



796 , Transactions of the. Vol. I (out of 3), with fine portrait of Telford, and 



27 plates {one of autographs of Engineers), 4to. cl., \0s 6f/ 1836 



Containing original contributions by Thomas Telford, Peter W. Harlow, k.r.s., T. TredgoM, Joshua Field, k.r.s., John 

 Farey, etc., etc. 



7!)7 CLAIRAUT (Alexis Claude) Elemens d'ALCfcDRE, 4'"e Edition ; with numerous tables, h\\\. Svo. 

 old calf. Is ad 1768 



798 [ ] Keciierches snr les CoURBES h DOUBLE CoURUURE ; with 5 plates, 4to. old calf gilt {fine 



copy), with bookplate of Philip 2nd Earl Stanhope, \Hs 1731 



This work, demonstrating that all curves of the third order are projections of one of five parabolas, was written at the 

 age of 18, and procured the author's admission to the Academy of Sciences. ' Dans ce livre, il resolvait d'importants 

 l>roblenies roulant sur les tangentes «le ces courbes particulieres. Leur rectification et la quadrature des cylindres qui les 

 projettent sur les plans coordonnesy sont traitees piar la methode encore en usage aujourd'hui '.—iJoi/er. 



799 Theorie de la FIGURE de la Terre, tiree des Principes de I'Hydrostatifine ; ivith numerous 



diagrams, 8vo. old calf gilt (FINE COPY) ; RARE, with L.ord Stanhope's bookplate, 18s 1743 



' Ilis fame rests chiefly on his 'Theorie de la Figure de la Terre', in which he promulgated the theorem that the 

 variation of gravity on the surface of the earth, re^^rded as an elliptic spheroid, was altogether independent of the law of 

 density'. He develops m this work the first theory of capillary attraction, and first gives the differential equation, till 

 then unknown, of the equilibrium of fluids, supposing an attractive force, following any law whatever, to exist among the 

 molecules. 



• In the figure of the earth no otlier person has accomplished as much as Clairaut, and the subject remains at. present 

 substai.tially as he left it, though the form is difl'erent.'— Tod/iKwrcr. 



800 CLARIDGE (John, shepherd) The Shepherd of Banbury's Rules to judge of the Changes of 

 the Weather, grounded on 40 years' Experience, with a Rational Account of their Causes, the 

 Nature of Wind, Rain, SnoM', etc. ; corrected Ed., 8vo. hf. roan. Is Qd ^ 1827 



• To JouK Campbell [I.I..D., 1708-75] has been g'^nerally ascribed the recast of 'The Shepherd of Banbury's Rules'. It is 

 somewhat noticeable as an attempt to base on quasi-scientific principles the weather forecasts of the alleged Banbury 

 shepherd.'— />. X. B. See also Notes and (Jueries, I. Sen, VII, v. 373. 



