‹‹‹ Vitr. 4.3.5 | Table of Contents | Vitr. 4.3.7 ›››
6The capitals of the triglyphs are to be made the sixth part of a module. Over the capitals of the triglyphs the corona is to be laid, whose projection is one half and a sixth part of a module, with a Doric cymatium over it, and another above it, so that, with the cymatia, the corona is one half of a module high. In the soffit of the corona, perpendicularly over the triglyphs and centres of the metopæ, are arranged guttæ and sinkings. The former, so as to have six guttæ appearing in front, and three on the return: the remaining spaces, which occur from the increased width of the metopæ beyond that of the triglyphs, are left plain or sculptured with representations of thunderbolts, and near the edge of the corona a channel is cut, called a scotia. The remaining parts, the tympana, simæ, and coronæ, are to be executed similar to those described for Ionic buildings.
6The capitals of each triglyph are to measure one sixth of a module. Over the capitals of the triglyphs the corona is to be placed, with a projection of two thirds of a module, and having a Doric cymatium at the bottom and another at the top. So the corona with its cymatia is half a module in height. Set off on the under side of the corona, vertically over the triglyphs and over the middle of the metopes, are the viae in straight lines and the guttae arranged in rows, six guttae broad and three deep. The spaces left (due to the fact that the metopes are broader than the triglyphs) may be left unornamented or may have thunderbolts carved on them. Just at the edge of the corona a line should be cut in, called the scotia. All the other parts, such as tympana and the simae of the corona, are to be constructed as described above in the case of the Ionic order.