Excerpt from Diamond Drilling for Gold and Other Minerals: A Practical Handbook on the Use of Modern Diamond Core Drills in Prospecting and Exploiting Mineral-Bearing Properties; Including Particulars of the Cost of Apparatus and of Working In the Appendix (pp. 137-158) there will be found various particulars relating to both the Sullivan and the Bullock Diamond Drills, and the special Tools and Supplies required therewith, which will be found use ful by intending purchasers of such appliances. Acknowledgment is due, and is hereby tendered, to the firms who have so obligingly placed their catalogues, cuts, etc., at the Author's disposal. From the materials thus supplied, details of the different drills, as well as other data and information suitable for the work in hand, have been freely extracted. The Author has also to thank Mr. Bennett H. Brough for his courtesy in sanctioning the two full quotations from his Treatise on mine-surveying. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.