At the commencement in 1565 he performed a public exercise (printed in his Medicinable Morall) on the theme 'Corpus Christi non est ubique.'

DON JOHN Any bar, any cross, any impediment will be medicinable to me: I am sick in displeasure to him, and whatsoever comes athwart his affection ranges evenly with mine.

That civil respects are a lett that this pretended reason should not be so contemptibly spoken of as were fit and medicinable, in regard that hath been too much exalted and glorified, to the infinite detriment of man's estate.

Unto the which is annexed a declaration of the Vertues of the Heart's Carduus Benedictus and Angelica; which are very medicinable, both against the Plague and also against many other diseases, London, 1578, dedicated to Sir Thomas Ramsey, lord mayor of London.