CHEMISTRY AND TECHNOLOGY. 63 



SECOND EDITION. In Large Svo. Handxome Cloth. Beautifully 

 Illustrated. With Plates and Figures in the Text. 21s. net. 



ROAD MAKING AND MAINTENANCE: 



A Practical Treatise for Engineers, Surveyors, and Others. 



WITH AN HISTORICAL SKETCH OF ANCIENT AND MODERN PRACTICE. 



BY THOS. AITKEN, Assoc.M.lNST.O.E., 



Member of the Association of Municipal and County Engineers ; Member of the Sanitary 

 Inst. ; Surveyor to the County Council of Fife. Cupar Division. 



WITH NUMEROUS PLATES, DIAGRAMS, AND ILLUSTRATIONS. 

 CONTENTS. Historical Sketch. Resistance of Traction. Laying out 

 New Roads. Earthworks, Drainage, and Retaining Walls. Road 

 Materials, or Metal. Quarrying. Stone Breaking and Haulage. Road- 

 Rolling and Scarifying. The Construction of New, and the Maintenance 

 of existing Roads. Carriage Ways and Foot Ways. 



"The Literary style is JSXCELLENT. . . . A COMPREHENSIVE and BXCBLLBNT Modern Book, an 



JP-TO-DATE work. . . . Should be on the reference shelf of every Municipal and County 



aeer or Surveyor in the United Kingdom, and of every Colonial Engineer." The Surveyor. 



In Handsome Cloth. Fully Illustrated. 10s. Qd. net. 



DUSTLESS ROADS. 

 TAR MACADAM. 



BY J. WALKER SMITH, 



City Engineer, Edinburgh. 



CONTENTS. Necessity for Improved and Standard Road Construction. Tar. Standardisation 

 of Matrix. Aggregate for Macadam Different Modes of Preparing and Laying. Mechanical 

 Mixing. Effects of Wear, Density, Porosity, Distribution of Weight. Scavenging; Watering and 

 Maintenance. Camber ; Gradient, Noiselessness, Hygienic Advantages. Rolling. Tractive 

 Effort. Statistics. Tar Spraying on Ordinary Macadam Surfaces. APPENDICES. INDEX. 



"The book is in every respect up-to-date and very suggestive. It is written by one 

 who has had unique opportunities for studying the subject, who has made himself 

 master of all its details, and who is not afraid to express his opinions thereon. It is, 

 therefore, practical in the best sense of the term." County and Municipal Record. 



In Demy Svo. Handsome Cloth. With Many Tables. 6s. net. 

 THE THEORY AND PRACTICE OF 



ENAMELLING ON IRON AND STEEL. 



BY JULES GRUNWALD, 



Technical Chemist and Works' Manager. 



CONTENTS. Introduction. The Raw Materials. The Mixing, Dissolving, and Appli- 

 cation of Enamel. Heating and Pickling Goods in the Rough. Correct laying on. 

 Baking Enamelled Ware. Decoration of Enamelled Objects. Photo-Ceramics in their 

 Application to Enamels. General and Statistical Chapter. The History of Enamels 

 and their Uses. INDEX. 



In Large Svo. Handsome Cloth. With Plates and Illustrations, ys. 6d. net. 



THE MANUFACTURE OF INK, 



A Handbook of the Production and Properties of Printing, Writing, and Copying Inks. 

 BY C. A. MITCHELL, B.A., F.I.C., F.C.S., & T. C. HEPWORTH. 



"Thoroughly well arranged . . . and of a genuinely practical order." British Printer. 



IONDON: CHARLES GRIFFIN & CO,, LIMITED, EXETER STREET, STRAND- 



