Dr.CyrilBaileyand Dr. C. M. Bowra have most recently analysed Virgil's method of using the expressions of Lucretius and Ennius respectively, and Mile A.-M. Guillemin has lately added significant considerations to Father F.-X. M. J. Roiron's long examination of Virgil's method of using again his own former expressions. Since then other work has been done with the purpose of clarifying the less rational part of Virgil's self-repetition; it might be called complementary to the well-known researches of Mr. John Sparrow. With such a purpose I have tried to suggest how Virgil reached the strange phrase in the firstEclogue, rapidum Cretae, orcretae, Oaxen, by a not unparalleled confusion of the names of several different rivers and at least one town.