Excerpt from Precious Stones: With a Chapter on Artificial Stones The author has to acknowledge his indebtedness to B. C. Munro Ferguson, Esq., m.p., for permission to figure some of the very fine specimens of Precious Stones contained in the Baith Collection; to Dr. J. B. Mears, of Edinburgh, for his careful drawings and photographs of these Speci mens; to Mr. R. Dykes, of the Marine Biological Laboratory, Lowestoft, and lately assistant to Sir J. Murray, for his chapter on the artificial production of Precious Stones; and to the life-teaching of his late father, J. G. Goodchild, of h.m. Geological Survey. Among the numerous larger works on this subject the reader is especially referred to the splendid book by Dr. Max Bauer, translated by Mr. L. J. Spencer, of the British Museum. The different gem stones are here considered in a mineralogical sequence, and the numbers preceding the names are the species numbers of Dana's System. 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.