Thanks DiapDealer. There are no back links - I hadn't got that far yet (wasn't sure if Kindles did that automatically or not). Here's my code, taken from an ePUB of the file;
Code:
<div class="story">
<p id="toc_marker-1" class="A-head"><span class="Bold">THE EMPEROR’S FAVOURITE (1)</span></p>
<p class="Main-text-no-indent"><span class="Italic">The Emperor’s Favourite</span> is one of four anonymous early seventeenth-century manuscript plays.<a href="#Anchor-1"><span class="superscript">1</span></a> The play was given the name used here by T. H. Howard-Hill when he published an article on the Arbury Hall dramas.<a href="#Anchor-2"><span class="superscript">2</span></a> The play, blah blah
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<p class="B-head">Notes</p>
<ol>
<li class="Endnotes"><a id="Anchor-1"/> Hereafter references to the manuscript will blah blah.</li>
<li class="Endnotes"><a id="Anchor-2"/> T. H. Howard-Hill, ‘Another Warwickshire Playwright: John Newdigate of Arbury’.</li>
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Does that seem likely to be problematic?