Of Engravings to Illustrate the above, containing 235 Illustrations of Mining Tools, drawn to Scale. 4to =4/6= Physical Geology, Partly based on Major-General PORTLOCK’S “Rudiments of Geology.” By RALPH TATE, A.L.S., &c. Woodcuts =2/0= Historical Geology, Partly based on Major-General PORTLOCK’S “Rudiments.” By RALPH TATE, A.L.S, &c. Woodcuts =2/6= Geology, Physical and Historical. Consisting of “Physical Geology,” which sets forth the Leading Principles of the Science; and “Historical Geology,” which treats of the Mineral and Organic Conditions of the Earth at each successive epoch. By RALPH TATE, F.G.S. =4/6= Electro-Metallurgy, Practically Treated. By ALEXANDER WATT. Tenth Edition, enlarged and revised, including the most Recent Processes =3/6= _MECHANICAL ENGINEERING._ The Workman’s Manual of Engineering Drawing. By JOHN MAXTON, Instructor in Engineering Drawing, Royal Naval College, Greenwich. Seventh Edition. 300 Plates and Diagrams =3/6= Fuels: Solid, Liquid, and Gaseous. Their Analysis and Valuation. For the Use of Chemists and Engineers. By H. J. PHILLIPS, F.C.S., formerly Analytical and Consulting Chemist to the Great Eastern Railway. Third Edition =2/0= Fuel, Its Combustion and Economy. Consisting of an Abridgment of “A Treatise on the Combustion of Coal and the Prevention of Smoke.” By C. W. WILLIAMS, A.I.C.E. With Extensive Additions by D. K. CLARK, M.Inst.C.E. Fourth Edition =3/6= The Boilermaker’s Assistant In Drawing, Templating, and Calculating Boiler Work, &c. By J. COURTNEY, Practical Boilermaker. Edited by D. K. CLARK, C.E. =2/0= The Boiler-Maker’s Ready Reckoner, With Examples of Practical Geometry and Templating for the Use of Platers, Smiths, and Riveters. By JOHN COURTNEY. Edited by D. K. CLARK, M.I.C.E. Fourth Edition =4/0= ⁂ _The last two Works in One Volume, half-bound, entitled_ “THE BOILERMAKER’S READY-RECKONER AND ASSISTANT.” By J. COURTNEY and D. K. CLARK. _Price_ =7/0=. Steam Boilers: Their Construction and Management. By R. ARMSTRONG, C.E. Illustrated =1/6= Steam and Machinery Management. A Guide to the Arrangement and Economical Management of Machinery. By M. POWIS BALE, M.Inst.M.E. =2/6= Steam and the Steam Engine, Stationary and Portable. Being an Extension of the Treatise on the Steam Engine of Mr. J. SEWELL. By D. K. CLARK, C.E. Fourth Edition =3/6= The Steam Engine, A Treatise on the Mathematical Theory of, with Rules and Examples for Practical Men. By T. BAKER, C.E. =1/6= The Steam Engine. By Dr. LARDNER. Illustrated =1/6= Locomotive Engines, By G. D. DEMPSEY, C.E. With large Additions treating of the Modern Locomotive, by D. K. CLARK, M.Inst.C.E. =3/0= Locomotive Engine-Driving. A Practical Manual for Engineers in charge of Locomotive Engines. By MICHAEL REYNOLDS. Tenth Edition. 3_s._ 6_d._ limp; cloth boards =4/6= Stationary Engine-Driving.