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 GRIFFIN'S METALLURGICAL SERIES. 



EDITION, Thoroughly Revised Throughout. With 51 Folding 

 Plates, Comprising 112 Figures, over 500 Illustrations in the Text, 

 and nearly 80 Photo-Micrographs of Steel Sections. Large 8vo. 

 Two Volumes. In all 1000 pages. Handsome Cloth. 36s. net. 

 With Additional Chapter on The Electric Smelting of Steel. 



THE METALLURGY OF STEEL. 



BY F. W. HARBORD, Assoc.R.S.M., F.I.C., 



AND J. W. HALL, A.M.lNST.C.E. 

 Vol. I. Metallurgy. Vol. II. Mechanical Treatment. 



(N.B. These Volumes are not Sold Separately.) 



ABRIDGED CONTENTS. The Plant, Machinery, Methods and Chemistry of the Bessemer 

 and of the Open Hearth Processes (Acid and Basic). The influence of Metalloids, Heat 

 Treatment, Special Steels, Microstructure, Testing, and Specifications. The Mechanical 

 Treatment of Steel comprising Mill Practice, Plant and Machinery. 



The Engineer says, at the conclusion of a review of this book : " We cannot conclude without 

 earnestly recommending all'who may be interested as makers or users of steeTTwhich practically 

 means the whole of the engineering profession, to make themselves acquainted with it as speedily 

 i possible." _ 



FOURTH EDITION, Revised and Enlarged. Pp. i-xv + 486. With 

 130 Illustrations. 16s. net. 



THE METALLURGY OF IRON. 



BY THOMAS TURNER, M.Sc., Assoc.R.S.M., F.I.C., 



Profetior of Metallurgy in the University of Birmingham. 

 Otntral Contend. Early History of Iron. Modern History of Iron. The Age of Steel. 

 Chief Iron Ores. Preparation of Iron OreB. The Blast Furnace. The Air used in the 

 Blast Furnace. Reactions of the Blast Furnace. The Gaseous Products of the Blast 

 Furnace The Fuel used in the Blast Furnace. Slags and Fuxes of Iron Smelting. 

 Properties of Cast Iron. Foundry Practice. Wrought Iron. Indirect Production of 

 Wrought Iron. The Puddling Process. Further Treatment of Wrought Iron. Corrosion 

 of Iron and Steel. Recent Progress INDBX 



"A THOROUGHLY usKFUL BOOK, which brings the subject UP TO DATS. OF 

 ORHAT VALUE to those engaged in the iron industry." Mining Journal. 



** For Professor Turner's "Lectures on Iron- Founding," &c.. see page 67 

 General Catalogue. __ 



In Medium 8vo. Handsome Cloth. Pp. i-xv + 460. With 166 

 Illustrations. 15s. net. 



The Sampling & Assay of the Precious Metals : 



Comprising Gold, Sliver and Platinum, in Ores, Bullion and Products. 



BY ERNEST A. SMITH, A.R.S.M., M.lNST.M.M., 

 Deputy Assay Master of the Sheffield Assay Office ; Late of the Royal School of Mines 



CONTENTS. Introduction. Design and Equipment of Assay Offices. Furnaces and 

 Appliances. Precious Metal Ores. Valuation of Ores. Sampling of Ores. Preparation 

 of Samples for Assay. Fluxes and Principles of Fluxing. Assay Operations () Roast- 

 ing ; (fc) Fusion ; (c) Scoriflcation ; (rf) Cupellation. Systems of Working. Assay of Gold 

 and Silver Ores. Of Complex Ores. Calculating and Reporting Results. Special 

 Methods of Ore Assay. Bullion. Valuation of Bullion. Sampling of Bullion. Assay 

 of Gold, Silver, and Base Bullion. Of Auriferous and Argentiferous Products. Assay 

 Work in Cyanide Mill Platinum and the "Platinum Metals." Assay of Platinum 

 in Ores, Bullion and Products. APPENDICES. INDEX. 



" May safely be placed in the hands of students, and will be of the greatest value to 

 as savers as a book of reference " Nature. 



'Unique ... the book should be added to the Mining Engineer's Library." 

 World. 



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