The masonry of the gate is very finely executed, with close joints, without mortar, in the manner of the period, and is, on the whole, in a wonderfully good state of preservation. The lower part of the work is quite plain. The archivolts, the entablature, including the architrave and the frieze, show little ornament; the cornice, however, is richly decorated with dentals, palmettes and other designs, as is also the remaining fragment of cornice above the arcade, whose fluted pilasters have beautiful capitals in the Corinthian style. The other surviving Roman gate,--the Porte St. André,--is on the north-east boundary of the city, not far from the Porte d'Arroux, by way of the Faubourg Arroux and the Rue de la Croix Blanche. It is less picturesquely situate, and, though very similar, is distinctly inferior to its neighbour in design and finish. The central arches are lower, and heavier, while the gallery lacks the lightness and grace which are characteristic of the Porte d'Arroux, and is, moreover, built in a stone darker and less pleasing to the eye than the oolithic limestone of the lower portion. M. de Fontenay suggests that this upper part was restored at some later and degenerate period of Roman architecture. Certainly the plain pilasters are badly designed and carelessly set, while the capitals, of a composite, semi-ionic order, appear to be too narrow for their pilasters--not too wide, as stated by M. de Fontenay, and also by M. Déchelette in his careful little guide to Autun. The Porte St. André shows no signs of having been fitted with a portcullis. Hamerton[30] states, no doubt correctly, that the door was barred by strong beams inserted into holes and grooves. These are still visible. The Porte St. André, it should be noted, is one of the most complete Roman gates existing in France. The lower portion of one of the flanking towers, which rose originally several feet above the attic story of the gate, owes its escape from destruction to its shape, which, coinciding with that of a typical Romanesque chapel, tempted certain ecclesiastics of the middle ages, to dedicate it to St. André, as a place for Christian worship.[31] These flanking towers comprised three stories. The first communicated with the Chemin de Ronde, along the crest of the walls, the second was a vaulted chamber, and the third remained open to the sky. Access was obtained by a double staircase. On the question of the period during which these gates were built, M. de Fontenay and Viollet le Duc are again at variance,--the latter attributing them to the fourth or fifth centuries,[32] the former to the reign of Vespasian (A.D. 69-79).[33] Strange as it may seem that another writer should contradict continually so eminent an authority as the last-named, the author of "Autun et ses Monuments" again has reason on his side, since he can refer to the orator Eumenes as describing the gates in the year 311 A.D.