Charles William Alcock, Football: The Association Game… (1906)
“ A Free Kick is the privilege of kicking the ball, without obstruction, in such manner as the kicker may think fit. A Fair Catch is when the ball is caught, after it has touched the person of an adversary, or has been kicked or knocked on by an adversary, and before it has touched the ground or one of the side catching it; but if the ball is kicked behind the goal-line, a fair catch cannot be made. Hacking is kicking an adversary. ”
