2199. A line of sheds is generally placed behind the range of hothouses, or behind the hot-wall, or other high wall of the garden. These are used as stores, or places of reserve for utensils, machines, and implements, and for working-sheds. The width and height of this line of sheds are necessarily regulated by the height of the wall. The roof of the shed, being towards the north, and therefore without the advantage of the sun to dry it after rains, should not make an angle of less than 40ᆭ with the horizon, and as the lower wall or line of props ought, at least, to be 7 ft. high above the level of the floor of the shed, the width is regulated accordingly. All the fittings up requisite for the part destined to hold materials are, a few hooks, and projecting pins for ladders, &c., and a sound floor, either paved or prepared with mortar, Roman cement, and scoriᄉ; and the whole or the greater part of the division may have props or piers in front, instead of a wall and windows.