The Tube and Ball.—This is a very ingenious trick, and well worthy the attention of the most fastidious performer. It can be used in several ways.
The apparatus consists of a piece of one and 
Fig. 36.—Tube and Ballone-half inch brass tubing about seven inches long, with a cap of the same metal fitting loosely over one end; also two billiard balls about the size of the diameter of the tube. The audience, however, are not supposed to know of the existence of more than one ball. (See Fig. 35.) The tube and cap, together with the ball, are given for examination, attention being drawn to the fact that the ball will readily pass through the tube. After examination the tube is stood on one end on the table and covered with the cap. The operator then takes the ball and vanishes it by means of sleight of hand, when, on the tube being raised, it has to all appearance been passed underneath.
The secret lies in the fact that there is a very small dent in the side of the tube at the centre; also that one of the balls—that given for examination—is slightly smaller than the other. The
