We may credit Julian himself, Orat. ad S P.Q. Atheniensem, p. 279, sq., who gives a very particular account of the transaction. Zosimus adds two hundred vessels more, l. iii. [c. 5] p. 145. If we computed the 600 corn ships of Julian at only seventy tons each, they were capable of exporting 120,000 quarters (see Arbuthnofs Weights and Measures, p. 237), and the country which could bear so large an exportation must already have attained an improved state of agriculture.