of the fifth century was raised to a high one in the fourth. It will be seen that all authorities are in substantial agreement that the Greek theater had a stage, even a high Vitruvian stage, but they are hopelessly divided with regard to the important detail as to when this stage was introduced—at the very first, at the close of the fifth century, in the time of Lycurgus, in the Hellenistic period, or in the reign of Nero. But before taking up the question of the stage in the Greek theater, it will first be necessary to determine Vitruvius’ relationship to the matter. The Roman architect’s description of the Roman theater does not coincide precisely with any extant Roman theater. Nevertheless, there has never been any doubt as to the general type of structure which he had in mind. It is evident, however, that he is describing no particular, actually existent, theater but is giving directions for an ideal structure. Indeed, he declares: “Whoever wishes to use these directions will render the perfect qualities of theaters faultless.”[166] There is, therefore, no reason to expect that his directions for Greek theaters would agree any more closely with any extant Greek theater, and in fact they do not. During the last two decades of the nineteenth century the ancient theaters at Epidaurus, Oropus, Thoricus, Eretria, Sicyon, Megalopolis, Delos, Assus, Pergamum, etc., were unearthed. The first result of this activity was to show that no two of these structures were entirely alike and that none exactly corresponded to Vitruvius’ directions. Furthermore, it has become evident that all ancient theaters are no longer to be classified under the two general Vitruvian types, “Greek” and “Roman,” but rather under a larger number of categories according to time, place, and conditions of use. But the question which one of these types Vitruvius had in mind still remains, and unfortunately the answer has not been so clear as to compel everyone’s acceptance. In Vitruvius’ day many Hellenistic, stageless theaters were still standing, and the modern attempt to identify these with Vitruvius’ Greek type and to force them into conformity with his prescriptions has wrought great confusion in the field of scenic antiquities. But Vitruvius nowhere professes to be writing a _history_ of Greek theaters nor had he any intention of presenting antiquarian lore. His book was planned for distinctly practical purposes. Now in his day only two kinds of new theaters were being erected, the Roman and what Dörpfeld has christened the Graeco-Roman.[167] Dörpfeld supposes the latter type to have originated with the theater which Pompey had built in Rome in 55 B.C. This is said to have been modeled upon the Greek theater at Mitylene in the island of Lesbos,[168] and Dörpfeld supposes that the orchestra of Pompey’s theater was kept free of seats, after the Greek fashion, and devoted to thymelic performances, but that the top of the proscenium,