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Rh 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 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:

Two boxes, without lids, sizes about twelve inches by eight inches by eight inches, usually fitting one within the other for convenience in traveling, and containing respectively cuttings of blue and white paper, are introduced to the