When Doug Sherman points his camera at a flowering branch or a mountain peak, others soon may see the same scene on the pages of their Sierra Club or Audubon Society calendars. A geology professor at ...

ORIGINALLY published nine years ago, Pirsson and Schuchert's Text-book has become the most popular introduction to geology among American students, and its well-merited supremacy is now likely to be ...

GEOLOGY, being such a many-sided science, is especially handicapped in regard to textbooks. It is provided with a library of books dealing with its various subdivisions and aspects, but the provision ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. Bring your flashlight because you ll need it in a dark cave like the Gailenreuth Cave in Germany! Caves are hollow ...