1911 Encyclopædia Britannica, Volume 7… (1911)
“ When the second card is laid down, the player calls out the sum of the pips on the two cards played, and so on until all the cards are played, or until neither player can play without passing the number thirty-one. If one player has a card or cards that will come in and the other has not, he is at liberty to play them; at the six-card game he must play as long as they can come in, and he can score runs or make pairs, &c., with them. If one player’s cards are exhausted, the adversary plays out his own, and can score with them. ”
