<div class="description">
<p>"Contribution from the Bureau of Chemistry and the Bureau of Markets."
</p>
<br>Subjects: Threshing Dust control Equipment and supplies; Fans (Machinery)</div>
<div class="fn value">
<dl><dd>Roethe, Harry E. (Harry Edward), 1891-1989</dd>
<dd>Bates, E. N. (Erastus Newton), 1879-</dd></dl></div>
Internet Archive identifier