Industrial ArchaeologyGeneral Mining[USED] Hydraulic mining : Classification test and valuation of alluvials-water supply-methods of working alluvials &c. With supplements on roads for mining purposes and motor traction and appendix / by C. C. Longridge. 1910
[USED] Hydraulic mining : Classification test and valuation of alluvials-water supply-methods of working alluvials &c. With supplements on roads for mining purposes and motor traction and appendix / by C. C. Longridge. 1910
C.C. Longridge, HB, 351pp, The Mining Journal (1910)
Classification, test and valuation of alluvials - water supply-methods of working alluvials, with supplements on roads for mining purposes and motor traction and Appendix