Plate XLIII. Large Rectangular Halls with Piers and Colonnades

Plate XLIII. — On this and the last Plates of this Series are shown rectangular halls of large size which are sub-divided longitudinally by piers and colonnades. In No. I the plan provides narrow ambulatories on both sides; the main piers carry arches and barrel vaults which enclose [a] series of square compartments above which saucer domes are raised. Colonnades introduced between the piers carry galleries, in the case of a detached building such as a museum or pavilion, but when used as a connecting link in a large composition, means of communication at a higher level would be afforded over the colonnade, light being admitted in either case through large lunettes on the clerestorey principle. An idea of the perspective effect of this type of interior can be obtained from Fig. 8. Nos. IV-VI give a further development of the foregoing: the principle of the sub-division of the plan, providing a series of central square compartments covered with intersecting vaults or saucer domes being identical. The introduction of colonnades as sub-motives between the piers and the provision of galleries or means of communication are also similar. This fine design is shown as a complete scheme for a detached building with external peristyle.