Tempest Prognosticator
...that the Tempest Prognosticator employs a jury of twelve leeches that use small hammers to ring a bell to indicate the approach of a storm?
...that the <b id="mwEik"><a class="mw-redirect" href="./Tempest_Prognosticator" id="mwEio" rel="mw:WikiLink" title="Tempest Prognosticator">Tempest Prognosticator</a></b> employs a jury of twelve <a href="./Leech" id="mwEis" rel="mw:WikiLink" title="Leech">leeches</a> that use small hammers to ring a bell to indicate the approach of a storm?