1981. By garden-structures we mean to designate a class of buildings which differ from all other architectural productions, in being applied to the culture, or used exclusively as the habitations of plants. As edifices, the principles of their construction belong to architecture; but as habitations for plants, their form, dimensions, exposure, and, in many respects, the materials of which they are composed, are, or ought to be, guided by the principles of culture, and therefore under the control of the gardener. They may be arranged into the movable, as the hotbed frame; fixed, as the wall, trellis, &c.; and permanent, as the hothouse.
