A Crystal Water Mystery.—Chemical tricks,
Fig. 41.—Water Trick as a rule, do not meet with much favor at the hands of professional conjurers. The reason is pretty clear, as, in the majority of cases, the modus operandi is too palpable. The one here described, however, owing to the number of changes produced, is an exceptionally good one, and is to be found in the repertoire of the leading performers of the day.
Four empty glass tumblers, together with a glass jug full of water, are arranged on a tray as shown in Fig. 41.
Water poured from the jug into—
- No. 1, is seen to be clear.
- No. 2, changes to stout.
- No. 3, is seen to be clear.
- No. 4, again changes to stout.
- Nos. 1 and 2 mixed equal stout.
- Nos. 3 and 4 mixed equal water.
- Nos. 1 and 2 put back into the jug give all stout.
- Nos. 3 and 4 put back into the jug give all water, as at first.
The explanation, although by no means obvious, is very simple. Glass No. 1 is perfectly clean. No. 2 contains a small portion of pyrogallic acid, about the size of a pea. No. 3 is prepared with half a teaspoonful of sulphuric acid. No. 4 contains the same quantity of pyrogallic acid as No. 2. The jug contains clear water, into which a teaspoonful of sulphate of iron is dropped just before the trick is commenced. The iron should not be placed in the water until actually required for use, as the solution changes rapidly to a yellow color, in which condition it would not very well pass for water. For the same reason the jug should be removed immediately after the trick.
Some performers prefer to use the following chemicals in place of those enumerated above. I will give them in the same order, and then the magician may choose for himself. Glass No. 1, as before, is quite clean; No. 2 contains a few drops of muriated tincture of iron; No. 3, a teaspoonful of a saturated solution of oxalic acid; and No. 4 is prepared in the same manner as No. 2. A teaspoonful of tannic acid should be added to the water in the jug prior to the commencement of the experiment.
I myself always use the sulphuric acid, as I believe it produces the best result, but in the case of a spill it is very dangerous, and on this account the latter method is to be preferred. The changes, in either case, are quite instantaneous, hence the trick produces a most extraordinary effect.
The Wizard's Breakfast.—The magical production of steaming hot coffee has always been a favorite trick with the juveniles, especially when the beverage is handed round for their consumption, and various pieces of apparatus have been designed for effecting this purpose. The most up-to-date method, however, is the one hereafter described: