Clement Le Neve Foster

A treatise on ore and stone mining

The investigation of mine air

Report upon the inspection of mines classed under the Metalliferous Mines Regulation Acts in the counties of Anglesey, Brecon, Cardigan, Carnarvon, Denbigh, Flint, Merioneth, Montgomery, Radnor, and Shropshire, and in the Isle of Man, for the year 1886