Su di un codice greco di Giovanni Zaccaria Attuario nella Biblioteca civica di Padova (C.M. 644)

The first part of the paper consists in the palaeographical and codicological analysis of a medical manuscript, held at the Biblioteca Civica in Padua (C.M. 644), transmitting two treatises written by John Aktouarios, a byzantine physician of the 14th century. There is strong evidence that the manuscript was copied and once belonged to an individual in some ways associated with the Paduan scholar Niccolò Leonico Tomeo (1456-1531). Starting from the philological exam of this witness of Aktouarios’ De methodo medendi, we tried to approach the complex tradition of this text. We extended our enquiry also to the Latin translations published in the 16th century. The article is followed by two appendixes: the first is dedicated to the study of the Greek fonds of Padua’s Biblioteca Civica; the second one describes two witnesses of Thucydides Histories belonging to Tomeo