ancient Roman combination of arch and entablature, with a Doric order in the basement, an Ionic order next above it, and an order of Corinthian pilasters in the top story. Where engaged orders are thus used in the inside of a rectangle it is usual to set a section of a pilaster in the angle, as the architect has done here. But the treatment of the capital in this angle becomes a matter of difficulty which cannot be overcome in an
Fig. 64—Portal from Serlio.
entirely satisfactory manner. This is especially the case where the Ionic order is used, as in the principal story of this court. It is necessary here to have parts of two capitals, on the angle strip of pilaster, in order that there may be a bolster on each side parallel with those of the other capitals in the colonnade to which it belongs, and a volute on each side facing in the same direction as the others in the same series. Thus two
