Prologue (Iste liber quem per manibus habemus vocatur Secretum Philosophorum.)
Book I then ends with homilies on ‘correct speaking’ (discretion and the dangers of lying), taken from the pseudo-Aristotle Secretum secretorum, with a note on ‘weasel words’ for concealing meaning.
Book III, ‘Dialectic’ ‘teaches to discern between true and false’ (Dialetica docet discernere verum a falso et ab apparenti vero).
Part V, ‘Music’ ‘teaches the numbers of sound’ (Musica docet de numero sonoro).
Book I: An edition and translation of the recipes for scribes and illuminators, together with a technical commentary, has been published by Clarke (2009),[4] which see for a list of surviving manuscripts.