DISCUSSION. SHAFT SINKING AT THE HORDEN COLLIERY, SOUTH-EAST DURHAM

SIR W MATTHEWS, H S CHILDE, T H BAILEY, T STEWART, A LUPTON, H DAVEY, J J PREST
1908 Minutes of the Proceedings of the Institution of Civil Engineers  
doi:10.1680/imotp.1908.17587 fatcat:sd2gofozafe45kquvhinll46au