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 dates of the different parts of the structure of the cathedral than we have of any similar building in the country. From this account it would appear that the existing structure is chiefly of the fifteenth century.

The edifice (Fig. 968) consists of an aisleless choir, a nave with two aisles, a north-west tower, and a chapter house to the north of the choir. The choir measures 103 feet long by 29 feet wide internally, and the rectangular chapter house attached to the north side is 27 feet long and 20 feet wide. Some portions of the choir indicate the style of the thirteenth

—Dunkeld Cathedral. Wall Arcade at North-West Angle of Choir.

century; but this part of the structure was almost entirely rebuilt in the beginning of the present century. An original fragment may, however, still be observed in damaged portions of a first pointed arcade (Fig. 969) in the interior of the north wall near the west end. The arcade is below the level of the window sill, and extends to six arches of trefoil form, springing from the carved caps of single shafts. All the details (Fig. 970) are pure and good. A post to support a modern gallery cuts into the arcade, as shown in Fig. 969. From the floor to the top of the caps