The Practical Miner's Guide; comprising a set of trigonometrical tables, adapted to all the purposes of ... dialling ... Also a treatise on the art and practice of assaying silver, copper, lead, and tin, etc. [With plates
A mining surveyor's handbook by John Budge, published in London by Longmans in 1825, with trigonometrical tables for underground dialling and instructions on assaying silver, copper, lead and tin. The plates are bare line diagrams: right triangles, traverse zigzags and survey lines in solid and dotted rule, lettered at the vertices, with small compass roses and fathom measurements.
