<div class="description">
<dl><dd>Includes bibliographical references</dd>
<dd>Cover title</dd>
<dd>"October 10, 1939."</dd></dl><br>Subjects: Visibility Measurement Research</div>
<div class="fn value">
<dl><dd>Jemison, George M. (George Meredith), 1908-</dd>
<dd>Appalachian Forest Experiment Station (Asheville, N.C.)</dd></dl></div>
Internet Archive identifier