<li>Illustration XVIII (<a idref="sect315">Section 315</a>)</li>
<li>Illustration XIX (<a idref="sect342">Section 342</a>)</li>
<li>Illustration XX (<a idref="sect350">Section 350</a>)</li>
<li>Illustration XVIII (<a idref="sect315">Section 315</a>)</li>
<li>Illustration XIX (<a idref="sect342">Section 342</a>)</li>
<li>Illustration XX (<a idref="sect350">Section 350</a>)</li>