It has sometimes been asked if a tennis-player should maintain any especial kind of training. He should--that is, he should keep in training in the sense of keeping in good condition and, as I have said above, in keeping in form. If a man wishes to win a closely contested five-set match, he has got to be absolutely fit. Such a game requires endurance as much as skill, and the man who is in the better condition, even if he is the poorer player, so far as science goes, is likely to be the winner. Every one who has played tennis, no matter how little, knows what an amount of exertion and lung-power is expended in a three or five set match, especially if the weather is at all warm or humid, as it usually is in this part of the country on the day set for a tennis-match--(unless it rains!) In order to be able to stand the strain of such an exertion, any one who is going to play tennis regularly and in tournaments during the summer should make it a point to lead as much as possible a regular life. One of the most important things is to get a good long rest every night, and especially on the night preceding a hard match. A good night's rest may only be obtained by retiring early. The trouble with a good many of our tennis-players is that, being at hotels or summer resorts for the playing of tournaments, they are apt to be led into sitting up late at night by the company or the entertainment which is at hand. Two hours sleep before midnight is recognized to be worth more than four hours of sleep in the morning, so far as refreshing the tissues of the body is concerned. For this reason tennis-players, and especially the younger men among them, to whom I hope to appeal in these columns, should avoid hops and dances at summer resorts, for this is the most common reason for sitting up late at night. A couple of hours' dancing in the evening, while it is fun, is exercise, and tires one. The man who has to play a match in the morning will feel that unpleasant weary sensation under the knees if he has danced the night before, and in the middle of about the second set he will wish he had gone to bed instead of to the ballroom. As for diet, there is no particular reason why this should be especially restricted. Good wholesome food will strengthen any one who is exercising, and constant exercise will likewise usually overcome the effect of a certain amount of rich food; but it is better for the general health not to tax the system with pastry and sweets and rich sauces. Especially at luncheon, before an afternoon match, should these dishes be shunned. It goes without saying that smoking should be avoided, for there is nothing worse than such indulgence for the "wind."