ave seventeen, which
must be the number of the remaining cards, and also of the two cards
drawn.

You may perform this amusement without touching the cards, thus:

Let the person who has drawn the two cards deduct the number of each
of them from twenty-six, which is half the number of the pack, and
after adding the remainders together, let him tell you the amount,
which you privately deduct from fifty-two, the total number of all the
cards, and the remainder will be the amount of the two cards.

_Example._--Suppose the two cards to be as before, ten and seven; then
the person deducting ten from twenty-six, there remain sixteen, and
deducting seven from twenty-six, there remain nineteen; these two
remainders added together make thirty-five, which you subtract from
fifty-two; and there must remain seventeen for the amount of the two
cards, as before.

_To tell the Amount of the Numbers of any Three Cards that a Person
shall draw from the Pack._

After the person has drawn his three cards, draw one yourself and lay
it aside, for it is necessary that the number of the remaining cards
be divisible by three, which they will not be in a pack of fifty-two
cards, if only three be drawn. The card you draw, you may call the
confederate, and pretend it is by the aid of that card you discover
the amount of the others. Then tell the party to add as many more to
each of his cards as will make its number sixteen, which is the third
part of the remaining forty-eight cards; therefore, suppose he has
drawn a ten, a seven, and a six; then, to the first he must add six
cards, to the second nine, and to the third ten, which together make
twenty-five, and the four cards drawn being added to them make
twenty-nine. You then take the remaining cards, and, telling them
over, as in the last amusement, you find their number to be
twenty-three, the amount of the three cards the person drew.

This amusement may also be performed without touching the cards,
thus:--When the party has drawn his three cards, and you have drawn
one, let him deduct the number of each of the cards he has drawn from
seventeen, which is one-third of the pack after you have drawn your
card; and let him tell you the amount of the several remainders, to
which you privately add one to the card you drew, and, deducting that
amount from fifty-two, (the whole number of the cards,) the remainder
will be the amount of the three cards drawn.

_Example._--Suppose the three ca