<div class="description">
<dl><dd>Distributed to depository libraries in microfiche</dd>
<dd>"August 1987"--T.p. verso</dd>
<dd>Includes bibliographical references (p. 3)</dd></dl><br>Subjects: Volcanic ash, tuff, etc; Washington (State) Saint Helens, Mount; Douglas fir Idaho</div>
<div class="fn value">
<dl><dd>Bilderback, David E</dd>
<dd>Carlson, Clinton E</dd>
<dd>Intermountain Research Station (Ogden, Utah)</dd></dl></div>
Internet Archive identifier