A magic square consists of numbers so disposed that in whatever way you may add the numbers, which the square contains, they will give the same amount, whether it be vertically, horizontally, or diagonally.
+---+---+---+ 15 | 2 | 9 | 4 | +---+---+---+ 15 | 7 | 5 | 3 | +---+---+---+ 15 | 6 | 1 | 8 | +---+---+---+ 15 15 15
+----+----+----+----+ 34 | 16 | 3 | 2 | 13 | +----+----+----+----+ 34 | 5 | 10 | 11 | 8 | +----+----+----+----+ 34 | 9 | 6 | 7 | 12 | +----+----+----+----+ 34 | 4 | 15 | 14 | 1 | +----+----+----+----+ 34 34 34 34
+----+----+----+----+----+ 65 | 11 | 24 | 7 | 20 | 3 | +----+----+----+----+----+ 65 | 4 | 12 | 25 | 8 | 16 | +----+----+----+----+----+ 65 | 17 | 5 | 13 | 21 | 9 | +----+----+----+----+----+ 65 | 10 | 18 | 1 | 14 | 22 | +----+----+----+----+----+ 65 | 23 | 6 | 19 | 2 | 15 | +----+----+----+----+----+ 65 65 65 65 65
Take a slip of cartridge paper, about three-quarters of an inch in width, paste and double it, let it remain till dry, then cut it into two equal parts in length, (Nos. 1 and 2) according to the following pattern:
+-------------------+----------+-------+-------------+ | No. 1. Glass | _S_ | Glass | No. 2. | +-------------------+----------+-------+-------------+
Take some of the glass composition and lay it across the paper as in the pattern, put about a quarter of a grain of fulminating silver in that place marked S, and while the glass composition is moist, put the paper marked No. 2, over the furthest row of glass. Over all paste twice over the part that covers the silver, a piece of paper, let it dry and when you wish to explode it, take hold of the two ends and pull them quickly from each other, when a loud report will be produced.
_A person privately fixing on any Number to tell him that Number._
After the person has fixed on a number, bid him to double it, and add four to that sum, then multiply the whole by five, to the product let him add twelve, and multiply the amount by ten; from the sum of the whole let him deduct three hundred and twenty, and tell you the remainder, from which, if you cut off the two last figures, the number that remains will be that fixed on.
Let the number chosen be 6 Which doubled is 12 And 4 added to it, makes 16 Which multiplied by 5, gives 80 To which 12 being added, it is 92 That multiplied by 10, makes 920 From which deducting 320, remains 600