Scoop dredge sketch from scanned textbook.
<ul><li><a href="//commons.wikimedia.org/wiki/File:LA2-NSRW-2-0062.jpg" title="File:LA2-NSRW-2-0062.jpg">LA2-NSRW-2-0062.jpg</a>: File Upload Bot (LA2)</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:IngerAlHaosului" title="User:IngerAlHaosului">IngerAlHaosului</a> (<a href="//commons.wikimedia.org/wiki/User_talk:IngerAlHaosului" title="User talk:IngerAlHaosului"><span class="signature-talk">talk</span></a>)</li></ul>
2009-06-10 20:25
<i><a href="https://en.wikisource.org/wiki/en:The_New_Student%27s_Reference_Work" class="extiw" title="s:en:The New Student's Reference Work">The New Student's Reference Work</a></i>