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 Labour Required For, and the Cost of the Various Portions Of, the Work: as Exemplified by the Particulars of Blechingley and Saltwood Tunnels
Frederick Walter Simms
Free