- William David Ross
ExtractPupil of the astronomer *Conon (2). He continued a connection between the Alexandrian astronomers and *Archimedes which had begun with the latter's studies in *Alexandria (1); Archimedes dedicated several of his books to Dositheus. Observations by him on the time of appearance of the fixed stars (some of them made at places further north than Alexandria) and on weather-signs are recorded in the Parapegma of *Geminus and elsewhere.
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