Service is the opening gun of tennis. It is putting the ball in play. The old idea was that service should never be more than merely the beginning of a rally. With the rise of American tennis and the advent of Dwight Davis and Holcombe Ward, service took on a new significance. These two men originated what is now known as the American Twist delivery. From a mere formality, service became a point winner. Slowly it gained in importance, until Maurice E. M'Loughlin, the wonderful "California Comet," burst across the tennis sky with the first of those terrific cannon-ball deliveries that revolutionized the game, and caused the old-school players to send out hurry calls for a severe footfault rule or some way of stopping the threatened destruction of all ground strokes. M'Loughlin made service...