You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
    <alllinks galcontinue="Biscuit_Wall" />
      <page ns="0" title="Bee Buttress" missing="" />
      <page pageid="1318" ns="0" title="BEE Buttress" />
      <page pageid="868" ns="0" title="Bad Kloof" />
      <page pageid="874" ns="0" title="Bains Kloof" />
      <page pageid="1029" ns="0" title="Barrier Buttress" />
      <page pageid="1377" ns="0" title="Bat Wall" />
      <page pageid="1320" ns="0" title="Berghoff Farm" />
      <page pageid="1133" ns="0" title="Berlin Wall" />
      <page pageid="612" ns="0" title="Betty&#039;s Boulder" />
      <page pageid="777" ns="0" title="Big Groove Sector" />