Fig. 91.—Elevation of Rosery Walk.
Fig. 92.—Plan of Roof of Rosery Walk.
From each group of four large collar-posts rise four rafters (B, B, [Fig. 92]), meeting at top pyramid-wise. They rise to a height from the ground of 7 ft. 6 in., and have, therefore, to be 3 ft. 4 in. long. Half-way up them—that is, 6 ft. 6 in. from the ground line—the purlins (C, C, [Fig. 92]) are nailed upon them. [Figs. 91] and 92 alike show how the space between wall-plate and purlin is filled in, and [Fig. 92] shows how the space, 7 ft. 3 in. long, stretching from one pyramidal portion to the next, is covered with a flat roof of open rustic work lying upon the purlins. This space, it will be observed, is chiefly filled in with crooked stuff.
[Fig. 93] shows how the upper part of the rosery would appear at one of its ends, and explains how the roof would be in section—the shaded parts give the form of the roof in its lower portions; whilst if the cross-piece, D (which is on a level with the purlins), is supposed to be removed, there is presented with the dotted lines, B, B, a section through the middle of one of the higher pyramidal portions.