<div class="description">
<dl><dd>Cover title</dd>
<dd>Includes bibliographical references</dd></dl><br>Subjects: Logging Machinery; Logging, Aerial; Balloons</div>
<div class="fn value">
<dl><dd>Lysons, Hilton H. cn</dd>
<dd>Binkley, Virgil Wayne</dd>
<dd>Mann, Charles N. cn</dd>
<dd>Pacific Northwest Forest and Range Experiment Station (Portland, Or.)</dd></dl></div>
Internet Archive identifier