The Practical Miner's Guide: Comprising a Set of Trigonometrical Tables, Adapted to All Purposes of Oblique Or Diagonal, Vertical, Horizontal, and Traverse Dialling ... : Also, a Treatise on the Art and Practice of Assaying Silver, Copper, Lead, and Tin ... : Together with a Collection of Essential Tables, Rules, and Illustrations, Exclusively Applicable to the Mining Business ...
John Budge
Free