Still another work on the interpretation of dreams contained in the edition of 1603[916] is ascribed to “Achmet, the son of Sereim” or Ahmed ben Sirin.[917] The Greek text states that he was interpreter of dreams to Mamoun, the first minister of the Caliph, which fixes his date as about 820 A. D.[918] Perhaps he is the same Achmet who wrote an astrological treatise extant in Greek which he says he compiled from books from Adam’s time to the present day.[919] Of the work on dreams there is a Latin version in the medieval manuscripts translated from the Greek by Leo Tuscus,[920] who died in 1182 and was interpreter of imperial letters in the time of the Byzantine emperor, Manuel Comnenus. Leo prefixes to his translation a prologue addressed[921] to his brother Hugo Eterianus or Eteriarius (Ecerialius). This work of Achmet is of about the same length as that of Artemidorus and contains over three hundred chapters. It is or pretends to be drawn mainly from Indian, Persian, and Egyptian sources and often cites in turn the doctrine or interpretation of those three peoples, or mentions by name interpreters of dreams of the kings and pharaohs of those countries.[922] The preface states that the same dream must be interpreted differently in the case of king and commoner, of rich and poor, and according to sex. The time of the dream must also be taken into account. For example, to see a tree blossom is a good sign in spring but a bad omen in autumn. The hour of the night when the dream occurs and the phases of the moon are other time factors which must be reckoned with. The remainder of the treatise is devoted to specific interpretation of dreams. [Sidenote: Byzantine and oriental divinations by Daniel.] To Joseph and Daniel, as the chief Biblical interpreters of dreams, books on the subject were assigned in the middle ages, as John of Salisbury has informed us. Daniel, however, seems to have been the greater favorite. Liutprand the Lombard, who died in 972, says in the account of his embassy to Constantinople, “The Greeks and Saracens have books which they call the _horaseis_, or Visions, of Daniel, but I should call them Sibylline. In them is found written how many years each emperor will live, and what will be the character of his reign, whether peace or strife, whether favorable or hostile relations with the Saracens.”[923] A brief set of Greek verses in alphabetical order ascribed to the emperor Leo, which occur in a late manuscript with various works of the fathers, seem to resemble the Latin alphabetical dream-books of which we shall presently treat.[924] Works of divination were also attributed to Daniel in Syriac and Arabic, such as predictions of rain, hail, and the like for each day of the year, and of eclipses and earthquakes,[925] or astrological forecasts for each month of the year.[926] There is even a geomancy in Turkish ascribed to the prophet Daniel.[927] [Sidenote: Latin _Dream-Books of Daniel_.]