This is another application of the principle introduced by Signor Molini
and utilised in the trick last described.
The requisites for the trick are as follows:
(1) Mirror glass; at the outset, empty.
(2) Two tubes of cardboard, sheet brass, or zinc, as A and B in Fig. 17.
The height and width of A are about 3½ and 2½ inches respectively. B is a
little taller, but a trifle less in diameter.
(3) A third tube, C, with its lower edge turned inward an eighth of an
inch all around. This tube is a little shorter than A, and in diameter a
trifle smaller than B, which must pass easily over it. Attached to either
side of its upper edge, outside, are soldered two little wire hooks, the
points on the outside directed downwards.
(4) A coil of paper ribbon, of such size as to fit closely into the lower
end of C, and forming, when so placed, a temporary bottom to it. The
inner end of the coil must be drawn up an inch or so, so as to form a
little cone in the centre.
[Illustration: FIG. 17]
(5) A similar coil unwound into a loose mass of paper ribbon.
(6) About three-quarters of a pint of haricot beans. Of these a
sufficient number must be poured into C (around the little cone), to fill
it. The remainder are to be brought forward on some sort of tray.[9]