the foot. These bars may be had ready grooved and planed at any of the steam saw and planing mills, and the purling, posts, wall-plate, boards to fix over the ventilators, &c., may also be bought ready for use, so that any ordinary carpenter or clever labourer may build such a house, and if a corner by the garden- wall can be spared it may be done for a small sum.

A, the back and end walls ; b, openings in back and front walls for ventilation. Of these there should be plenty; a