="code">shape</code></dt>
<dd><p>Perimeter/sqrt(area).
</p></dd>
<dt><code class="code">perm</code></dt>
<dd><p>Permeability in milli-Darcies.
</p></dd>
</dl>

<h4 class="subsubheading" id="Details-12"><span>Details<a class="copiable-link" href="#Details-12"> &para;</a></span></h4>

<p>Twelve core samples from petroleum reservoirs were sampled by 4
cross-sections. Each core sample was measured for permeability, and each
cross-section has total area of pores, total perimeter of pores, and shape.
</p>
<h4 cla