On account of the requirements of the subject, a large number of wood-cuts have been made for the first volume, and the following volumes will also be fully illustrated wherever the subject is susceptible of it.
The first three volumes are now ready. Others will follow, written, like these, by thoroughly competent writers in their own departments; and each volume will be complete in itself.
Heinemann's Scientific Handbooks.
I.
MANUAL of ASSAYING GOLD, SILVER,
COPPER, AND LEAD ORES. By Walter Lee Brown, B.Sc. Revised, corrected, and considerably enlarged, with a chapter on THE ASSAYING OF FUEL, &c., by A. B. Griffiths, Ph.D., F.R.S. (Edin.), F.C.S. In One Volume, small crown 8vo. Illustrated, 7s. 6d.
Colliery Guardian.—"A delightful and fascinating book."
Financial World.—"The most complete and practical manual on everything which concerns assaying of all which have come before us."
North British Economist.—"With this book the amateur may become an expert. Bankers and Bullion Brokers are equally likely to find it useful."
II.