For 50 hams, make dimensions 7x8 feet. Dig all the ground out to below the frost line, and fill up to the surface with small stones. On this lay a brick floor with lime mortar. Walls of brick, 8 inches thick by 7 feet high, and a door on one side, 2 feet wide. Door of wood, lined within with sheet-iron. For the top, put on joists, 2x4, set up edgewise, and 8-1/2 inches from centre to centre, covered with brick and with a heavy coat of mortar. Build a small chimney over the centre, arching it over and covering it with a single roof in the usual way. An arch should be built on the outside, with a small iron door, similar to a stove-door, to shut it up. Make a hole in the arch through the wall of the house, and put an iron grate over it. The arch is much more convenient to put the fire in, than to build the fire inside the house, and the chimney causes a good draught through the latter. Burn good corn-cobs or hickory wood. This house should cost about $20.