Abstract

J. Kaerst, following a suggestion made by Ranke, conjectured that Diodorus' source for Alexander, whom he identified with Clitarchus, derived information from the mercenaries who served Darius. This conjecture has been developed into an elaborate theory by Sir William Tarn, a theory that has found some favour. He holds that the ‘mercenaries' source’, which I shall henceforth call M, was Diodorus' ‘principal guide [my italics] down to Issus’, and also ‘largely used’ by Curtius ; from certain texts in Curtius Tarn infers that M went down to Darius' death, and he thinks that till that point both Diodorus and Curtius continued to draw upon him, as well as upon other authorities