Note 3010 — Chapter XXXII · CONSTANTINUS AFRICANUS: C. 1015-1087.
Reading edition
According to Steinschneider (1866), p. 402, it is only from the citations of Constantinus that we know of a work by Rufus on melancholy. See especially De melancholia (1536), p. 285, “Invenimus Rufum clarissimum medicum de melancholia fecisse librum....”