SCIOPTICON MANUAL. 55 



reclining on a bed is painted on the fixed glass, a lower 

 jaw on one slip, which works up and down, and a rat 

 on the other, which, as the slip is drawn, has the 

 appearance of running down the man's throat. With 

 the Sciopticon, the operator has hold of a slip with each 

 hand, so he can jerk the rat back with a sudden move- 

 ment of the forefinger, when he is all ready to make his 

 appearance again as a new individual. In politics he 

 might be called a "repeater." 



THE LEVER SLIDE. 



Fig. 20 represents another popular, but a more expen- 

 sive, mechanical effect. The horse having approached 

 the water with his head up, the lever to the right is 

 raised, and the horse is "made to drink" (the old adage 

 to the contrary notwithstanding). The head and neck 



Fig. 0. 



being painted on the glass moved by the lever, works 

 up and down as on a pivot at the shoulders. 



REVOLTING FIGURES. 



A movable disk corresponding to the one moved by 

 the lever in Fig. 20, may be revolved by means of a rack 

 and pinion; of this class is a variety of chromatropes, 



