<collection dtd-version="2.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML">
  <collection-meta>
    <collection-id>Quacks</collection-id>
    <collection-name>Famous Quacks</collection-name>
    <abstract><p>Biographies of famous quacks and frauds. The following books have been digitized and the full text has been made 
    available both online (HTML) and in PDF format.</p></abstract>
    <collection-list>
      <collection-member>
        <title>Perkins and the Perkins Tractor</title>
        <ext-link ext-link-type="URL" 
        xlink:href="http://www.ncbi.nlm.nih.gov/books/perkins"
        xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple"></ext-link>
      </collection-member>
      <collection-member>
        <title>The Practical Phrenologist</title>
        <ext-link ext-link-type="URL"  
        xlink:href="http://www.ncbi.nlm.nih.gov/books/Fowler"
        xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple"></ext-link>
      </collection-member>
    </collection-list>
  </collection-meta>
</collection>