John Ralfs
...that English botanist John Ralfs amassed a collection 3,137 microscopic slides, which he left in his will to the British Museum?
...that <a href="./England" id="mwBBk" rel="mw:WikiLink" title="England">English</a> <a href="./Botany" id="mwBBo" rel="mw:WikiLink" title="Botany">botanist</a> <b id="mwBBs"><a href="./John_Ralfs" id="mwBBw" rel="mw:WikiLink" title="John Ralfs">John Ralfs</a></b> amassed a collection 3,137 <a class="mw-redirect" href="./Microscopic_slide" id="mwBB0" rel="mw:WikiLink" title="Microscopic slide">microscopic slides</a>, which he left in his <a class="mw-redirect" href="./Will_(law)" id="mwBB4" rel="mw:WikiLink" title="Will (law)">will</a> to the <a href="./British_Museum" id="mwBB8" rel="mw:WikiLink" title="British Museum">British Museum</a>?