. The book of the garden. Gardening. it can readily escape. These battens form the proper ridge of the roof, and are themselves supported by ornamental cast-iron columns and arches ; and from them arms project, which, being attached to the straining bars of iron placed under the astragals, tie the whole roof together in a most effective manner, d d are the rafters that tie the top of the ridge, and are placed above the pilasters b b. Plate VI., fig. 6, shows the elevation of the back offices, with the chimney- pots, which are of an ornamental cha- racter, on the top of the front wall, instead
. The book of the garden. Gardening. it can readily escape. These battens form the proper ridge of the roof, and are themselves supported by ornamental cast-iron columns and arches ; and from them arms project, which, being attached to the straining bars of iron placed under the astragals, tie the whole roof together in a most effective manner, d d are the rafters that tie the top of the ridge, and are placed above the pilasters b b. Plate VI., fig. 6, shows the elevation of the back offices, with the chimney- pots, which are of an ornamental cha- racter, on the top of the front wall, instead of, as is usual, on the top of the back wall of the hothouses. The smoke flues are carried from the furnaces through the party walls of the offices, rendering them dry and slightly warm; while the smoke and unconsumed carbonaceous matter are prevented from falling on the glass roofs. The openings near the ground are the area windows, which give light to the cellars. The windows and doorways are margined with light-coloured composi- tion bricks, tuck-pointed, and are con- structed as shown in fig. 34—the rest of the wall being of red brick, the joints neatly cut out and drawn in with black coal. Fig. A glance at the elevation of the hot- houses will show that the third house from each end of the span-roofed ones rises considerably above the one next it. Without some precaution, snow falling from the side of the roof of the one would break the glass in the others. To guard against this, an ornamental cast- iron parapet 6 inches in height, cast open, is planted on the cast-iron half gutter, which extends from front to back : this has spaces between it and the gutter 1 inch in height, so that the melted snow may pass under it and fall into the full-sized gutter at the bottom of the roof of the adjoining house, while the bulk of snow will be prevented from falling along with it, as it is retained by the parapet until it is melted. All the gutters between the various roofs are
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
