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HTML is good for debugging, but is unsuitable for application use.
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To see the non HTML representation of the XML format, set format=xml.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20050811130437" timestamp="2005-08-11T13:04:37Z" ns="0" title="Aug. 10, 2005" />
        <page value="20050817191504" timestamp="2005-08-17T19:15:04Z" ns="0" title="Aug. 17, 2005" />
        <page value="20050817195143" timestamp="2005-08-17T19:51:43Z" ns="0" title="Original Task List Draft" />
        <page value="20050818183342" timestamp="2005-08-18T18:33:42Z" ns="0" title="Use Cases" />
        <page value="20050824190122" timestamp="2005-08-24T19:01:22Z" ns="0" title="Aug. 24, 2005" />
        <page value="20050829132604" timestamp="2005-08-29T13:26:04Z" ns="0" title="Timeline of Work" />
        <page value="20050829205058" timestamp="2005-08-29T20:50:58Z" ns="0" title="NSDL Registry Use Case Documentation" />
        <page value="20050831192747" timestamp="2005-08-31T19:27:47Z" ns="0" title="Aug. 31, 2005" />
        <page value="20050906224433" timestamp="2005-09-06T22:44:33Z" ns="0" title="NSDL Registry/testing" />
        <page value="20050921194211" timestamp="2005-09-21T19:42:11Z" ns="0" title="Sept. 21, 2005" />
      </results>
    </querypage>
  </query>
</api>