Excerpt from Submarine Mines and Torpedoes: As Applied to Harbour Defence The following pages have, for the most part, already appeared in Engineering, in a series Of articles on submarine mining, and several requests having been received to republish same in book form, it has been determined to, do so. An examination of the Table of Contents enables a reader to separate theory from practice. The general sequence of the chapters has been arranged as far as possible in the order in which a scientific subject should be investigated, viz.: (1) Theory (2) Experiment; (3) Practical Application. In compiling these pages, great care has been taken to guard all Government secrets - those arrangements only being described which have already been published, either in the specifications obtainable at the Patent Office, or in the public press, or in books sold to the public in this and other countries. I shall feel compensated for a long year of labour if the general ideas propounded receive attention, and should they be accepted, I shall feel that it is more due to the exceptional advantage of having worked for several years in daily contact with the English Vauban than to any perspicuity of my own. The broad principles of scattering submarine mines as much as possible should be identified with him (sir Wm. F. Drummond J ervois), and if he agree in the main with the contents of the following pages I shall consider their accuracy proven. 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.