Herbert C. Hoover, hardback, 199 pages, McGraw-Hill Book Company, Inc., 1909, First Edition, Tenth Impression.

Valuation, organization and administration. Copper, Gold, Lead, Silver, Tin and Zinc.

This volume is a condensation of a series of lectures delivered in part at Stanford and in part at Columbia Universities. It is intended neither for those wholly ignorant of mining, nor for those long experienced in the profession.