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117. SUBTERRANEOUS SURVEYING, with and without the Magnetic Needle. By T. Fenwick and T. Baker, C.E. Illustrated. 2s. 6d.‡

135. ELECTRO-METALLURGY; Practically Treated. By Alexander Watt. Ninth Edition, enlarged and revised, with additional Illustrations, and including the most recent Processes. 3s. 6d.‡

172. MINING TOOLS, Manual of. For the Use of Mine Managers, Agents, Students, &c. By William Morgans. 2s. 6d.

172*. MINING TOOLS, ATLAS of Engravings to Illustrate the above, containing 235 Illustrations, drawn to Scale. 4to. 4s. 6d.

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180. COAL AND COAL MINING. By the late Sir Warington W. Smyth, M.A., F.R.S. Seventh Edition, revised. 3s. 6d.‡

195. THE MINERAL SURVEYOR AND VALUER'S COMPLETE GUIDE. By W. Lintern, M.E. Third Edition, including Magnetic and Angular Surveying. With Four Plates. 3s. 6d.‡