The practical miner's guide; comprising a set of trigonometrical tables adapted to all purposes of oblique or diagonal, vertical, horizontal, and traverse dialling, with their application to the dial exercise of shafts, adits, drifts, lodes, slides, levelling, inaccessible distances, heights, etc. Also a treatise on the art and practise of assaying silver, copper, lead, and tin
Budge, John