Figure 84 is a covered seat or rustic arbor, with a thatched roof of straw. Twelve posts are set securely in the ground, which make the frame of this structure, the openings between being filled in with branches (about three inches in diameter) of different trees-the more irregular the better, so that the perpendicular surface of the exterior and interior is kept nearly equal. In lieu of thatch, the roof may be first tightly boarded, and then a covering of bark or the slabs of trees with the bark on, overlaid and nailed on. The figure represents the structure as formed round a tree. For the sake of variety this might be omitted, the roof formed of an open lattice work of branches like the sides, and the whole covered by a grape, bignonia, or some other vine or creeper of luxuriant growth. The seats are in the interior.
