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ash in the doors are hinged and can be opened when needful. [Illustration: FIG. 11.--_Ground Plan._] [Illustration: FIG. 12.--_Section._] DESIGN No. 4. This design combines a grapery, and forcing, and propagating house in one. _Figs._ 13, 14, 15, show side elevation, south front, and section through the centre. The dimensions are twenty feet in width by forty three feet in length, to which ten feet have since been added, enclosing boiler pit C. and potting room not shown in sketch. The foundation is built on locust posts with plank nailed upon both sides. Such foundations we do not advocate, as they are a bill of expense, for needful repairs, every four or five years, and the additional outlay for permanent brick or stone foundations is money well invested. In the present case, the owners wishes were carried out. On the ground plan, that part designated A. is devoted to the growth of grapes. The border is all inside of the house and is about three feet in depth. At the dotted line a wall is built across the house to sustain the border, the floor of B. being two feet lower. The central portion of B. is devoted to grapes in pots. At the sides of B. are beds for propagating plants, forcing vegetables, &c., furnished with bottom heat from brick tanks which extend entirely around the house and heat the grapery part as well. [Illustration: FIG. 13.--_Side Elevation._] [Illustration: FIG. 14.--_South Front._] [Illustration: FIG. 15.--_Section._] Pipes laid underground from the outside furnish fresh air when desired and ventilation in the roof is also provided for. [Illustration: FIG. 16.--_Ground Plan._] DESIGN No. 5. The following design is a house with a straight roof of low pitch, and was built with considerate regard to cost, for which reason, among others, the foundations are of wood, and side lights are omitted. The sides are of inch and a half plank nailed to locust posts, the space between the inside and outside lining being filled with charcoal dust. Such foundations do very well at first, but the wood in contact with the ground will decay in three or four years, and require repairs--though locust posts will last for many years. This house is quite narrow, being only twelve feet wide. It has tables on either side and a walk in the middle, through which is a row of light posts to support climbing plants. Ventilation is effected at the ridge by six ventilators. There are also ventilators o
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