"I say it is a jerk because it is a jerk," was the sensible reply. "I know a jerk when I see one, and I have a right to believe my eyes, though I cannot define wherein a jerk consists."
In a jerk there is a certain mechanical precision and curl of the ball wholly unlike fair bowling.
A throw may be made in two ways; one way with an arm nearly straight from first to last: this throw with straight arm requires the hand to be raised as high as the head, and brought down in a whirl or circle, the contrary foot being used as the pivot on which the body moves in the delivery. But the more common throw, under pretence of bowling, results from the hand being first bent on the fore-arm, and then power of delivery being gained by the sudden lash out and straightening of the elbow. It is a mistake to say that the action of the wrist makes a throw.
"In delivery" means some action so called: if the mere opening of the hand is delivery of the ball, then the only question is the height of the hand the moment it opens. But if, as we think, "delivery" comprehends the last action of the arm that gives such opening of the hand effect, then in no part of that action may the hand be above the shoulder.
Further, in case of doubt as to fair bowling, the umpire is to decide against the bowler; so
