15.—If a player, having declared to play—
(1) Exposes a card before it is his turn to play, or
(2) Plays a card out of turn, or
(3) Plays a card before all have declared, or
(4) Exposes a card while playing, so as to be named by any other declared player,
He shall be compelled to throw up his cards, and to forfeit a single to the pool.
16.—In the case of a revoke, it is in the option of any player, other than the offender, to require that the cards be taken up and the hand played again.
17.—All penalties of a single shall be deemed to belong to the existing pool; all higher penalties and proceeds of tricks left by way of penalty in the pool to the pool next following.
NAPOLEON.
There are two or three versions of Napoleon, or "Nap." We will begin with