Excerpt from Geology of Western Ore Deposits
This second edition is the result partly of the success of the first, but mainly of a desire felt by the author to bring his subject up to date. It is now over ten years since the earlier edition was written, and the science of geology, the development of mines and the rapid discoveries of new regions have advanced at such a pace that what then appeared as new is now commonplace. An example is the discovery and development of Cripple Creek, a district then in its infancy, receiving but scant attention in the original work. The same has been the case with many other mining camps, in Colorado and elsewhere.
It has been the writers object to illustrate the principles of mining geology rather than to dilate on any particular rich or noted mine. If a small mine illustrates some important geological or other interesting feature in the science of mining, attention is given to that mine rather than to its more noted neighbor. Preference is given to Colorados mines because the writer ds more familiar with them, and they well illustrate the leading principles. Those outside of Colorado are selected and described as enlarging on principles previously discussed.
The first part of the book relates to general features of mining geology. This is followed by illustrations of these, drawn from Colorado mining camps, and by a further illustration and confirmation of them from some of the noted mining camps of the Western States.
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