<div class="description">
<dl><dd>Caption title</dd>
<dd>Contribution from Bureau of Public Roads</dd>
<dd>"Supersedes Department bulletins: 370, The results of physical tests of road-building rock; 670 The results of physical tests of road-building rock in 1916 and 1917: and 1132, The results of physical tests of road-building rock from 1916 to 1921 inclusive, and supplements the data in those bulletins."</dd>
<dd>Chiefly tables</dd></dl><br>Subjects: Road materials; Rocks</div>
<div class="fn value">
Woolf, D. O. (Donald Oliver), 1898-</div>
Internet Archive identifier