Plate 86. Entablatures and Imposts

This plate shows, on the entablatures of the second and third orders of the Colosseum at Rome, the same profile peculiarity that was mentioned on the former plate, but in an entirely opposite application, inasmuch as on the Pantheon it was used on the interior, while on the Colosseum it was used on the exterior. At the latter the projection of the architrave is even greater at the third story than at the second. The omission of the corona in the third story order is a still further proof of the great misunderstanding of the constructive members.

This plate contains also the impost and archivolt of the Triumphal Arches of Constantine and of Septimius Severus, as also the attic of the latter (see Plates 71 and 78 for these Arches). The impost cornice of the Arch of Constantine has under the corona, consoles, in the underside of which are very well executed flying eagles. As a whole this cornice appears to be formed from the Corinthian. At the impost of the great arch of Septimius Severus the crown moulding is carried on the dentils, the corona being entirely suppressed.