Show signs m in the sky A glorified glorI Qed magic imalle la lantern intern said to be capable of projecting photographs and signs on to the clouds Is the latest contribution to the science of advertising i the device still in its laboratory form consists of a powerful searchlight mounted behind a series of lenses and a slide holder the whole apparatus resembles ft cannon and Is isable able to project ima images g es for a distance of five miles on a cloud bank the image Is visible for miles around while a revolving screen in front of the muzzle of the pro projector I 1 lector can be used to produce color changing effects |