Contents During the Middle Ages, several Latin works which show no connections with his surviving Greek writings have been attributed to the Greek philosopher Aristotle (384/3 BC - 322 BC), one of the greatest intellectual authorities of the period. This manuscript is the only witness of this short text which concerns a dream about the perfection of the philosophers' stone.It begins on f. 129r and it is introduced by the words Incipit somnium preclarissimi...