h class (static) variable defined
    by the class. </li> 
  </ul>

<h2> Project Documentation </h2>

  <p> The <strong>Trees</strong> page contains the module and class hierarchies: </p>
  <ul>
    <li> The <em>module hierarchy</em> lists every package and module, with
    modules grouped into packages.  At the top level, and within each
    package, modules and sub-packages are listed alphabetically. </li>
    <li> The <em>class hierarchy</em> lists every class, grouped by base
    class.  If a class has 