^'-t-«;T"s;r!v.K:iii.'s ^a^^ J Sjli ''^ DSMi: RUDIMENTARY SCIENTIFIC -^^ WEALE'S AND EDUCATIONAL SERIES. »i ^J^^ 1 The folhivrnq are the WorksNaAlrTeaUdRyApuLblisPheHdIiLnO- '^^] PHYSICAL SCIENCE, l^^. It SOPHY, &c. _,^ if^] t {The Volumesarebomdin limp cloth, except where otherwue stated.) =2^^^. S rFGT™FrMFIoSwTBRVYF.fRo.rSth.e UWsiethofaBnegAipnpneenrdsi.x onBythPerAopfpehscsao-r %^2}^t: ^ S^ NtAioTnUofRCAheLmisPtHryItLoOAgSriOcuPltHuYre,. f1obr. the Use of- -Bdegi•nners. ^,J^/^^-.;'|^' >£ By CharlesToMLiNsoN, F.R.S. Is. 6d. .^vj^t^ ^ MECHANICS: being a concise Exposition of the S GetrafpicfplesofMel^hanicalScienceandtheirApphcab^^^ 0^ ^g^r;rt- ELBaEplyEpelcCCitehrTdia.cRralIleCBsScIyiTTeonSMYciLer:i,NWSa.OsnKhd,SonFwto.ihRwen.gSH.paurtrrIhpsieo.ss,6edsG.Fe^tnRoe.rSwa^h,li,c&hc_P.nin.tc^Wiai.pst,^hesbeeonf. '^^>^J-^Tf^^ !S^ GAsiLdeVraAblNeIAdSdMit.ionsBbyySRi.rSWab.inSen,oC.wE.H,aFb.rSi.sA.. >N;«•e'w''I-Editi.on, -^^y^^ ^X^/*^- ^M^rAiev?GissNeedEd.TanIBdSyeM^Rl.oab^egerBdty^bS^SaibHri.nWeM,..C.SNEon.Aonw,IsHP.ah6r.dDr..is.WiNthew16E5diWtoioodn-, .f^_^^^J^-^ i'^^ TcHutEs. E38L.E6dC.T; RclIotCh boTarEdsL,E48G. RAPH,: i.,ts „Hi•stiory an^-d1 ^,^fM,^ ^ Progress. By R. Sabine, C.E.. F.S.A., &c. 3s V^;| ^^^SF^ T"EPBEasoLJnNndEBtiidGaaltRlSeyAsuaPfrporHrfac,thEimcSaplHolanoAndy.NmineDsntWrtBoucoOtidincvOeuttwKhoser.kTO.e"lF-3es/.g)ar;TiaicHpylh2oEWt.Sh:?errbavopiaac^re.Gd.sui3Bds.ey6RUd.)^ ^^fr-;.^^^^Jo^J^j; ^fS1ri%- s^Ah"SFoA^lTRdlRaSwrOhonoNcIaeOW^EpMrddoYiecsut.irireoouaZscrBooeyfpvybiteosfihneteghdieaslmnabptodleocokyo.Rer"ed-rvCem..cmittR,heaoed»b.tseeorrtvihtceePMorfaeitshnee,ntteMTle.igAmra.ep,.h ^^o^^^^ tSi "B/ysoWu.ndTahnydnsniemplLeyntrne,atiBse.,A.ve,ryF.cRar.eAf.ulSl.yedi2tsed,andacapi.t,al,.b„o„otk ffoorr '^->^v^^^l t3^r=^4J>- bMegARWieniNncteehUrnst.A"A—aLp£nnpdoeu>nOF2doedsFi?sx«i.lTbSyHhelERlsa.lMphOByLTLDartU.eS,SC-AAP.^:LSWlo_a(o:nTrr.™eSa..ti•sAeWXioiSt.^n_t^/^^J-^^>^^^ ':t^jSi: ••nAumsetorroeuhosusPelaoftecsonachnodlog3i0e0alWaonoddcgueotlso.gical7s.inf6do.r,matciloont.h.-IIard.^cke. ^^^^f.^ ^^ "t^mlL PHYSZCS, Handbook of. By I)k>nvsi.s Laudner, D.CL. With 520 lUustrations. In One Vol. (732 ^|^, .Kg-TMl- pagCehs)a,pt7esr.s*6Id*.-,VScIolloIdt.halbso4oas.ridns.TwCohPaarptbs,srassfVoIlIlLo-wsX:V—III. 3s. 1^^i^^^^^; ^-- ^1^ ^i^SBY LOCKWOOD& SON.7,StI^I^I^^^^^HALL COURT, E.C. — — — '- % A SELECTION FROM WEALE'S SEKIE8. MINING, METALLURGY, &c. -% METALLURGY OF IRON. Containing the History of Iron Manufacture, Methods of Assay, and Analyses of Iron jC%^ Ores, Processesof Manufactureof Iron and Steel, &c. By H. S^IjU COBaAuLermAanN,DF.GC.SO.ALFiftMhIENdiItiNonG,.reviBseyd.Si5rs.W;acrl.ibndag.t,ofnis.t6Vd.. ^ Smyth, M.A., F.R.S., &c., Chief Inspector of the Minesof the -«-' ^xaVc.'K^Vi SUCrBowTnE.RSReAveNntEhOEdUitSion,SrUevRisVedE.YISsN.G6d,.; Eclloetmhehnoatradrs,y4sa.nd -^^ ^•^S rractical Treatise on, with and without the Magnetie Needle. -^ y'^Vij. By Thomas Fenwick,Surveyorof Mines, and Thomas Baker, %"' ^^c^l TH^•E^- IMllIusNtrEatRed.AL28. S6d.U;RcVloEthYbOoaRrds,A3sN.D VALUERS -^ -^ ^^'c COMI'LETE GUIDE. Comprising a Treatise on Improved "0 '^jtfc'l^,^ M'^iinthinNgewSuTrrvaevyeirnsge Taanbdletsh.e BVayluWa.tiLoinntokfrn,MiMniinnigngPrEonpierritnieeesr,. ^X'j'' .^eAJ Third Edition, with an Appendix on Magnetic and Angular ^^i ^^S^l Surveying. With FourPlates. 3s.6d. '% -V-5^^;^ "Thisvolumecontainsanenormousfundofinformation ofgreatvalue." c~ k1^^,->^^"A MSinLinAgTJoEurnaAl,ND SLATE QUARRYING, Science, PriLc- IpZ ^')kt' tical, and Commercial. By D. C. Davies, F.G.S., Mining fy. ^^Vp Engineer, &c. WithnumerousIllustrations andFoldingPlates. '^^ ^^C* SecondEdition, carefully revised. 3s.; cloth boards,3s. 6d. %^l K^jP^ "Oneofthebestandbest-balanced treatises on a specialsubjectthatwe "r .:r^v^^.^S» hMavEeTmeAtwLitLh.U" REnGgiYneerO.FCOPPER: an IntroAnciion to the ?{-^.^ ^'^ Methods of Seeking, Mining, andAssaying Copper, andManu- C ''c? facturingitsAlloys. ByR. H. Lamborn, Ph.D. 2s. 6d. y^ ^^. ELECTRO-METALLURGY, Practically Treated. By 1? ry^'-'^^^ Alexander Watt. Ninth Edition, revised, including themost .^. RecentProcesses. 3s. 6d.; cloth boards,43. C" ^TCJl "From this book bothamateur and artisan maylearneverythingneces- 5^ Zi^'^T ^'"-ly-" Iron. _ Ji ^^>' MINING TOOLS, Manual of, for the use of Mine '^_ ^^O^ Managers, Agents, &c. ByW. Morgans. 28.6d.; cl. bds., 3s. r: ?Ci;:T- MINING TOOLS, Atlas of Engravings to Illustrate the ^; s^Xi^./S', MIabNovEe,R2A35LOIlGluYst,ratiRoundsidmreawnntstoSocfa:le.a 4ctoo,nc4i8.se6d.Vi;eclw.bodfs.,t6hse. -:A-^ '^MTSl^\ Properties of Minerals. By A. Ramsay, F.G.S., F.R.G.S. i; ThirdEdition,revisedandenlarged. WoodcutsandSteelPlates. K ^^^•«^ASa PH3sY.6Sd.I;CcAloLthGboEarOdsL,O4Gs.Y,-partly h&sedon MsLJOT-General ^'-A^ I^C^^C^ PoRTLOcK's"RudimentsofGeology." ByRalphTate,A.L.S. 2s. ^" HISTORICALGEOLOGY,p&ri\yhsisedonMsiior-Gener&\ -< Portlock's"Rudiments." ByRalphTate, A.L.S., t&c. 28. 6d. ^"^ •^* Theabove twoworkshoundtogether,limp,4«.Qd.;clothboards,bt. ^ _^ CROSBY LOCKWOOD& S0N,-7,STATIONERS' HALL COURT,E.G. ?i Y^^^^^K^'^.Y'^>^-^Y'^K^^Y^^^>^^^^^Y^^K^^4^^S THE GOLDSMITH'S HANDBOOK CONTAINING FULL INSTRUCTIONS FOR THE ALLOYING AND WORKING OF GOLD INXLUDING THEART OFALLOYING, MELTING, REDUCING, COLOURING, COLLECTING, AND REFINING THE PROCESSES OF MANIPULATION, RECOVERY ; OF WASTE, CHEMICAL AND PHYSICAL PROPERTIES OF GOLD; WITH A NEW SYSTEM OF MIXING ITS ALLOYS SOLDERS, ENAMELS, ANDOTHER ; USEFUL RULES AND RECIPES. By GEORGE GEE E. GOLDSMITH AND SILVERSMITH, Al'THOR OF "THE SILVERSMITH'S HANDnOOK" THIRD EDITION, CONSIDERABLYENLARGED Cons. TS Ga^ . CI LOXDON CROSBY LOCKWOOD AND CO. 7, STATIONERS' HALL COURT, LUDGATE HILL 1886 D. VAN NOSTRAND COMPANY, NEW YORK. m GETTY CFNTFR PREFACE TO THE FIRST EDITION. Having been frequently applied to by gold- workers and others, with reference to certain difficulties relating to their trade, which they were unable to overcome mechanically, the idea pre- sented itself to the mind of the Author, that a work practically treating on the "Uses and Appli- cations of Gold," having special regard to the business of the goldsmith and jeweller, would be a useful auxiliary to the artificer also, by affording him a constant means for consultation and instruc- tion. From an intimate connection with this craft or art, of a very practical nature, extending over a period bordering upon twenty years and having ; held during nearly the whole of that time a ; IV PREFACE. position of trust and responsibility with several leading manufacturing firms also from his expe- ; rience as a jeweller's manager, he is not only enabled to place before the reader the results of his own personal experience, but also thatofothers who have been under his direction and control. And further, having given considerable attention to the intricacies of the trade generally, he has, — as a natural consequence in common with others — met with many difficulties connected with it besides other obstacles which are to be found in the path of the younger craftsmen. These however have been ultimately overcome by the exercise of patience, careful observation, and perseverance. To guide, therefore, the workman and young apprentice, and, as far as possible, to prevent them from experiencing similar perplexities by pointing out their chief causes and the remedies, as well as to supply some additional information which will, it is hoped, contribute both to their effi- ciency and advancement, is the aim ofthe writer. Directions for mixing gold, solders, enamel, &€., are here given of a thoroughly experimental character. The processes of colouring, collecting, PREFACE. V refining, and some other modes of treatment of the precious metal are also described, and for accuracy they can be safely depended upon. The Author has endeavoured to avoid, as much as possible, technical expressions having regard ; all through to the main object ofthis little volume, namely, the benefit of that class of practical gold- workers who take an interest in the daily business of their life, to which, perhaps, chance or choice has called them but who unfortunately may be ; unable to improve their position^ from the want of a higher and more comprehensive knowledge of their calling. He has, therefore, tried to make the matter plain and intelligible to all who may give it their attention. Especially does he desire that such of his fellow workmen who are steadily devoting their energies to this art, in any of its several branches, may through this instrumentality acquire a knowledge of facts, and a set of useful rules with which they have, perhaps, hitherto been unacquainted. It only remains to be added that the greater portion of this work has appeared in the form of articles in the Jeweller and Metal-worker^ a well- VI PREFACE. known and valuable journal, published in the interests of the trade indicated by its title. Much additional matter has however been here intro- duced, and the whole carefully revised so that ; it may become, as it were, a manual of reference and a guide to the jeweller's workshop.