Practical Tunneling. Explaining in Detail, the Setting out of the Works; Shaft Sinking, and Heading Driving; Ranging the Lines, and Levelling under Ground; Sub-Excavating, Timbering; and the Construction of the Brickwork of Tunnels.exemplified by the particulars of Blechingley and Saltwood Tunnels
Fredeerick Walter Simms
From Hugh Hardinge Books, Cambridge, United Kingdom
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