Excerpt from International Library of Technology: A Series of Textbooks for Persons Engaged in the Engineering Professions and Trades or for Those Who Desire Information Concerning Them; Fully Illustrated and Containing Numerous Practical Examples and Their Solutions; Rock Boring, Rock Drilling, Explosiv

Rock Boring: Copyright.1906, by International Textbook Compant; Entered at Stationers' Hall, London.

Rock Drilling: Copyright, 1906, by International Textbook Company; Entered at Stationers' Hall, London.

Explosives and Blasting: Copyright.1906, by International Textbook Company; Entered at Stationers' Hall, London.

Coal-Cutting Machinery: Copyright.1906. by International Textbook Company; Entered at Stationers' Hall, London.

Timbering: Copyright.1906, by International Textbook Company; Entered at Stationers' Hall, London.

Timber Trees: Copyright, 1906, by International Textbook Company; Entered at Stationers' Hall, London.

Trackwork: Copyright, 1906, by International Textbook Company; Entered at Stationers' Hall, London.

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