<i>Title:</i> The latest in plows. Washington, D.C., July 14. R.B. Gray, Chief of the Div. of Mechanical Equipment, U.S. Bureau of Agricultural Engineering, tightens a nut on a self-aligning jointer. An invention which helps to do a better job of plowing while reducing the power requirement 10 to 15 percent. The metal hood at the side of the plow itself is a trash guide, which helps to turn under trash, weeds, and corn stalks. it is a factor in controlling such pests as the European Corn Borer, 7/14/38
<i>Abstract/medium:</i> 1 negative : glass ; 4 x 5 in. or smaller
Harris &amp; Ewing, photographer
1938
<p>Library of Congress
</p>
<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="https://lccn.loc.gov/2016873799">https://lccn.loc.gov/2016873799</a></li>
<li><i>Image download:</i> <a rel="nofollow" class="external free" href="https://cdn.loc.gov/master/pnp/hec/24800/24828a.tif">https://cdn.loc.gov/master/pnp/hec/24800/24828a.tif</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2016873799/">https://www.loc.gov/pictures/item/2016873799/</a></li></ul>