<chapter id="devel-component">
      <title>Evolution Components</title>
      <subtitle> Build your own species </subtitle>
      <para>
          Explain exactly what an Evolution Component is.
      </para>

      <sect1 id="devel-component-build">
	<title>Building Evolution Components</title>
	<para>
          Explain how to build them-- what resources are available,
          what interfaces exposed.
        </para>
      </sect1>

      <sect1 id="devel-component-use">
	<title>Using Additional Evolution Components</title>
	<para>
          Once you've got one--either you've built it or borrowed it--
          you can use it.  Here's how.
        </para>
      </sect1>      
    </chapter>