Here we make use of what is known as a "mirror" glass. A thick cut-glass tumbler is divided in the centre by two pieces of looking-glass cemented together. The glass is held in the left hand with one side of the mirror facing the audience; hidden in the compartment behind the mirror is a short length of chain. Having filled the glass with water the conjurer puts it down on the table for a moment while he draws attention to the separate links. He picks up the mirror-glass with his left hand and drops in all the separate links into the front compartment of the glass. (The water helps to disguise the presence of the mirror in the glass.) Then the conjurer brings his right hand over to the glass, takes it in that hand and immediately brings his hand right round to his right. Thus he has turned the glass round without having apparently done anything out of the ordinary; the audience see what they believe to be the separate links in the glass. The conjurer then takes the glass with his left hand, the fingers, being in front of the glass, help to hide the mirror. Then—well, the rest is easy! Directly the chain has been taken out the conjurer should put the glass down behind some piece of apparatus on the table; the audience cannot be permitted to gaze at it for any length of time.
Fig. 16
The Milk Cans
You have seen the toy milk cans in a shop? By having two of these "faked" in the way shown in the illustrations you can compose two or three little tricks. I have already explained a trick in which one of the cans can be used.
Fig. 17
It will be seen that if water is placed in one of the cans and the can is held with the faked side downwards the can can be shown to be empty, because the water will not run out, but if the can is held with the faked side uppermost the water can be poured out. Of course, the audience cannot be permitted to have a very close view of the interiors of the cans.
Here is one way of using two of these cans in a trick. Have one loaded with water and the other empty. Show the audience that both are empty and put them down on the opposite sides of your table. Pour water into the can which really is empty and command it to pass to the other can. You can then make the water travel invisibly back to the first can.
In the course of your "patter" you will probably not miss the chance of talking about the milk cans and the other liquid which is sometimes supposed to be put into milk—an old joke, but one which audiences almost seem to expect.