1911 Encyclopædia Britannica, Volume 13… (1911)
“ A rubber-covered ball is used and the stick is heavier than that used in Ice Hockey. The radical difference between the two games is that, in Ice Polo, there is no strict off-side rule, so that passes and shots at goal may come from any and often the most unexpected direction. Five men constitute a team: a goal-tend, a half-back, a centre and two rushers. The rushers must be rapid skaters, adepts in dribbling and passing and good goal shots. The centre supports the rushers, passing the ball to them or trying for goal himself. The half-back is the first defence and the goal-tend the last. ”
