Claude Harris Miller, Outdoor Sports and Games
“ Curve pitching will only come with the hardest kind of practice.In general the spin is given to the ball by a certain use of the fingers and the method of releasing it. It is necessary to conceal your intentions from the batsman in preparing to deliver a curve or he will divine your intention and the effort may be wasted. All curves are produced by a snap of the wrist at the instant of releasing the ball. Excellent practice may be had in curving by pitching at a post from a sixty-foot mark and watching to see the effect of various twists and snaps. ”
