Spondent Pariter
... that Pope John XXII's decretal Spondent Pariter banned alchemy, but not chemistry (which John himself had studied)?
... that <a href="./Pope_John_XXII" id="mwBug" rel="mw:WikiLink" title="Pope John XXII">Pope John XXII</a>'s <a href="./Decretal" id="mwBuk" rel="mw:WikiLink" title="Decretal">decretal</a> <i id="mwBuo"><b id="mwBus"><a class="mw-redirect" href="./Spondent_Pariter" id="mwBuw" rel="mw:WikiLink" title="Spondent Pariter">Spondent Pariter</a></b></i> banned <a href="./Alchemy" id="mwBu0" rel="mw:WikiLink" title="Alchemy">alchemy</a>, but not chemistry (which John himself had studied)?