
This is a reproduction of a book published before 1923. This book may have occasional imperfections
such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact,
or were introduced by the scanning process. We believe...

This professional paper from the U.S. Geological Survey presents issues 15 and 16, covering a range of topics within the earth sciences. With contributions from leading experts, the publication delves into detailed analyses and findings related to geology, geophysics, and...