When Dr. Rice Holmes' Roman Republic came to hand and I began to turn over at random the pages of vol. i, the first passage which caught my eye was the discussion of Pompey's short campaign against Mithradates. It occurs in one of those numerous and lengthy appendices, attached to each of the three volumes, which the author calls ‘Part II,’ and in which, with regal disregard of the prices and prejudices of publishers, he seeks to probe to the bottom every difficulty that arises in the course of his investigations. This Second Part, which the author hopes some may not find tedious, is, I think, the section to which most scholars will turn first. The discussion of the campaign (p. 428 ff.) revived memories of old studies of my own in which I seemed to have reached somewhat more definite conclusions, at any rate on some points, than Dr. Holmes offers to his readers. In the description of the campaign which he gives in the narrative portion of his work (p. 206 f.) he takes, in my opinion, the correct view about its general course, but the discussion of details does not seem to me to be quite satisfying nor to dispose of the main difficulty which arises out of Strabo's localization of one of the places concerned.