As in the theatre of antiquity, rude machines were employed to raise or lower actors through the stage; trap-doors were certainly in use, and probably "bridges," or small platforms, which could be elevated into the upper regions. In somewhat earlier times still ruder appliances had been in vogue. For example, in the religious and allegorical plays, Hell-mouth was represented by a huge face of painted canvas with shining eyes, a large red nose, and movable jaws set with tusks. When the jaws opened, they seemed to shoot out flames, torches being no doubt waved behind them. The theatrical property-room of that time was incomplete without a "rybbe colleryd red" for the mystery of the Creation. But in Shakespeare's day scarcely anything of this sort was required. It was Inigo Jones who first introduced movable scenery and decorations at the court entertainments. They were certainly not in use at the popular playhouses at any time during Shakespeare's connection with the stage. Audiences felt no need for such aids to illusion; their imagination instantly supplied the want. They saw whatever the poet required them to see--as a child sees whatever is suggested to its fancy, as little girls see real-life dramas in their games with their dolls. For the spectators were children alike in the freshness and in the force of their imagination. If only a placard were hung on one of the doors of the stage bearing in large letters the name of Paris or of Venice, the spectators were at once transported to France or Italy. Sometimes the Prologue informed them where the scene was placed. Men of classical culture, who insisted on unity of place in the drama, were offended by the continual changes of scene and the pitiful appliances by which they were indicated. Sir Philip Sidney, in his _Defense of Poesy,_ published in 1583, ridicules the plays in which "You shall have Asia of the one side, and Afric of the other, and so many other under-kingdoms, that the player, when he cometh in, must ever begin with telling where he is, or else the tale will not be conceived."