Page:Library Construction, Architecture, Fittings, and Furniture.djvu/122

98 Different forms of the Cotgreave Automatic Step are shown in Figs. 35-37. It consists of a metal box or case, which can be fitted into the upright divisions of the bookcases. The step, when not in

use, lies enclosed in the box, with the exception of a small projection at the top, just enough to enable it to be pushed down by the toe of the boot. Immediately the foot is removed the step swings back out of the way. If it is necessary to use one