In consequence of the very numerous robberies of jewelers in the city, the trade are adopting the following suggestion, which has emanated from WEBB and HAYDON, the well-known indefatigable officers, and may be seen in Mr. W. CHRISTIE’s, watch manufacturer, No. 70, Cannon-street, city, every night.

A panel is cut out in the middle of the shutter of the shop, in which is inserted a piece of plate glass, secured by iron bars inside. In the centre of the shop is a large iron safe in a frame on rollers, surrounded by gas, in which are placed the contents of the shop, the keyhole facing the window, so that anybody passing can look in and see what is going on; and if the gas is out or the window darkened the police are aware that something is wrong.