A simple description of screen, or if you please to cail it so, a pimple Orchard house, for protecting fruit from frost in spring and for encouraging a fine healthy growth, may be readily formed. For foreign grapes there can be little doubt such a screen would answer; made portable, it may be transferred from the wall to the border to ward off heavy rains, and also assist in increasing its warmth. The trouble of removing would be a simple matter, no rafters being used. The sashes are made upon the most economical principle, with as little carpenters' work as possible. The glass is made to slide into grooves in astragals its own thickness, three lengths of which fill the sash; a piece of casement-lead put between keeps the cut edge from chipping; a wood pin through the bottom plate keeps the whole tight; no putty is therefore required. The ends of the sashes are left a foot longer (A a) to allow a space of 6 inches clear for ventilation; an inch board R inches wide is fixed under the coping of the wall and notched out (B B) fur the ends of the sash to rest,against, and which is kept fast by half-inch iron keepers screwed on.

This board is fixed by a strap of iron passing over the wall, and a bracket under, The sash rests on a plate its own thickness, with an inch fillet on each side at 1 toot clear apace from the ground, and at 4 feet from the wall This and the coping board remain fixed when the sashes are removed. With care in storing the sashes away in winter, they will, on account of their durability, prove in a few years the cheapest covering we can get.

GLASs SCREEN FOR WALLS.