The source html I'm receiving is full of div anchors. They link to illustrations and other material inside the html file.
For example—
<a href="ch01.html#ch01fig02">Figure 1.2</a>
links to
<div class="image" id="ch01fig02"><img src="/static/01fig02.jpg" alt="Images"></div>
Once inside edx however, these anchor/bookmarks break.
Eric