... is at bat and another on the bases and two are out and an attempt is made to steal second, as the chief umpire calls the batter out on strikes the public should be clearly informed that the batter is out. If the play looks close at second base the crowd frequently believes the runner has been called out and resents it accordingly. In line with the same play, when the runner is called out and the fourth ball at the same time is called on the batter, the ... — Spalding's Official Baseball Guide - 1913 • John B. Foster