Excerpt from Archaeologia Cambrensis, Vol. 1: The Journal of the Cambrian Archaeological Association, 1870; Fourth Series The tract thus doubly defined by rivers and moun tains, has yet a third and not less definite, if less ap parent limit, for it is also the great mineral field of South Wales, to which the Principality owes its present, and its prospect of an increasing, prosperity for many centuries to come. The county of Glamorgan is entirely contained within this mineral field, but does not occupy its whole extent, a moderate area being shared by Monmouth, and a still smaller one by Caermarthen. 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.