His arm, that was a bit stiff at first, from lack of practice since coming to Riverside, gradually became limber. He knew that his speed, too, was increasing. He could not judge of his curves, and, truth to tell he did not have very good ones as yet, for he had only recently learned the knack. But he had the right ideas and a veteran professional pitcher, who was a friend of one of the Bentville nine's members, had showed Joe the proper manner to hold and deliver the ball.