<td><blockquote>

  <p>The <strong>Engine</strong> element represents the entire request
  processing machinery associated with a particular Catalina
  <a href="service.html">Service</a>.  It receives and processes
  <em>all</em> requests from one or more <strong>Connectors</strong>,
  and returns the completed response to the Connector for ultimate
  transmission back to the client.</p>

  <p>Exactly one <strong>Engine</strong> element MUST be nested inside
  a <a href="service.html">Service</a> element, f