Excerpt from A Treatise on Slate and Slate Quarrying: Scientific, Practical, and Commercial The manner in which the first. Edition of this book has been received both by the Press and the public, besides being gratifying to myself, shows the necessity there was for a. Work of the kind. During the last eighteen months the slate trade has passed through a. Severe depression. Happily, while it was the last branch of industry to succumb to the bad ness of the times, it is one of the first to show signs of revival. It is plain, I think, that While North Wales will continue to own the supremacy as a slate-producing country, she will not possess the monopoly of the industry in the future. My hope is that both masters and men will do their best to retain and extend the importance of this truly British industry. 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.