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carbonate of potass. If a piece of white cloth be dipped in this mixtures it will be changed to blue; yellow cloth, in the same mixture, may be changed to green; red to purple; and blue litmus paper to be turned to red.
To find the Points cast on two Dice.
For this trick, cast both the dice, and then, mark how many points appear at the top; then let him take up one of them (no matter which), and see what number is at the bottom, and add all together; then let him cast the dice again, and add the points cast to the former sum; let the dice stand, bring seven with you, and then add the points which appear at the top of the dice, and you will find so many were cast in the whole
