Justin, in the preface to his work entitled _De Historiis Philippicis_, informs us that it was “a kind of anthology”—_veluti florum corpusculum_—extracted from the forty-four volumes published by Pompeius Trogus on Philippic (_i.e._ Macedonian) history. As these volumes included histories of nearly all the countries with which the Macedonian sovereigns had transactions, they embraced such a very wide field that they were regarded as a cyclopaedia of general history. Justin remarks that while many authors regard it as an arduous task to write no more than the history of one king or one state, we cannot but think that Pompeius had the daring of Hercules in attacking the whole world, seeing that in his books are contained the _res gestae_ of all ages, kings, nations, and peoples. He then states that he had occupied his leisure while in Rome by selecting those passages of Trogus which seemed most worthy of being generally known, and passing over such as he took to be neither particularly interesting nor instructive. He has been much, but unjustly, blamed for his omissions, seeing that his only object in writing was to compile a work of elegant historical extracts. By so doing he has rescued from oblivion many facts not elsewhere recorded. From the extracts relating to India we gather more information about Sandrokottos (Chandragupta) than from any other classical source. Trogus Pompeius belonged, we know, to the age of Augustus, but it is uncertain when Justin lived. As the earliest writer by whom he is mentioned is St. Jerome, his date cannot be later than the beginning of the fifth century of our aera. THE LIFE OF ALEXANDER THE GREAT [Illustration: FIG. 1.—LYSIMACHOS.] [Illustration: FIG. 2.—ARISTOTLE.]