You must retain in your memory the four following words, with the
arrangement of the letters which compose them:—
_m_ _i_ _s_ _a_ _i_
_t_ _a_ _t_ _l_ _o_
_n_ _e_ _m_ _o_ _n_
_v_ _e_ _s_ _u_ _l_
Collect all the cards into the left hand, two by two, as they lay on the
table, and then place them, one by one, in the same order as the
preceding letters, taking care to place the two first as the two _m_,
the two next as the two _i_, the two following as the two _s_, and so
on.
Ask each person in which horizontal row his two cards are. If he says
they are both in the same row, for example the third, they will be
pointed out by the letters _n_ and _n_, contained in that row; if they
are in two different rows, as the first and last, the letters _s_ and
_s_ will indicate the place which they occupy.