Mary Philadelphia Merrifield
... that the seaweed expert Mary Philadelphia Merrifield learnt Swedish so she could correspond with the naturalist Jacob Georg Agardh?
... that the <a href="./Seaweed" id="mwBZI" rel="mw:WikiLink" title="Seaweed">seaweed</a> expert <b id="mwBZM"><a href="./Mary_Philadelphia_Merrifield" id="mwBZQ" rel="mw:WikiLink" title="Mary Philadelphia Merrifield">Mary Philadelphia Merrifield</a></b> learnt Swedish so she could correspond with the naturalist <a href="./Jacob_Georg_Agardh" id="mwBZU" rel="mw:WikiLink" title="Jacob Georg Agardh">Jacob Georg Agardh</a>?