His hypothesis was written up in De corpore saturni but before the work was published Huygens presented his theory of the rings of Saturn. Immediately Wren recognised this as a better hypothesis than his own and De corpore saturni was never published.
Kanyang teorya ay nakasulat sa Mula corpore saturni ngunit bago ang trabaho ay na-publish na Huygens ipinapahayag sa kanyang teorya ng rings ng Saturn. Agad-agad Wren kinikilala ito bilang isang mas mahusay kaysa sa kanyang sariling mga teorya at Mula corpore saturni ay hindi nai-publish.