Diamond Drilling for Gold and Other Minerals; a Practical Handbook on the Use of Modern Diamond Core Drills in Prospecting and Exploiting Mineral-bearing ... of the Cost of Apparatus and of Working [Kindle-editie] beoordelingen het boek quotes

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.