Practical tunnelling

Practical Tunnelling: 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: With the Amount of La

A Treatise on the Principal Mathematical Instruments Employed in Surveying, Levelling, and Astronomy

Practical Tunnelling: 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; With the Amount of Labou

Practical Tunneling: Explaining in Detail the Setting Out of the Works: ... as Exemplified by the Particulars of Blechingley and Saltwood Tunnels