<div class="description">
<dl><dd>In collaboration with the Bureau of Entomology</dd>
<dd>At head of title: U.S. Department of Agriculture, Bureau of Chemistry</dd>
<dd>Introduction. pp. 7</dd>
<dd>The lime-sulphur-salt wash. pp. 7</dd>
<dd>The lime-sulphur-soda wash. pp. 23</dd>
<dd>Proposed new washes. pp. 28</dd></dl><br>Subjects: Insecticides; Fungicides; Pesticides</div>
<div class="fn value">
<dl><dd>Haywood, J. K. (John Kerfoot), 1873-1928</dd>
<dd>United States. Bureau of Chemistry</dd>
<dd>United States. Department of Agriculture</dd></dl></div>
Internet Archive identifier