I have had experience in boxing and fencing, and I say with confidence, that in neither nor both is there such a field for fine posturing, wide, graceful action, and studied accuracy, as is to be found in the new series of dumb-bell exercises. But, it is said, if you use dumb-bells weighing only two pounds, you must work an hour to obtain the exercise which the heavy ones would furnish in five minutes. I need not inform those who have practised the new series with the light dumb-bells that this objection is made in ignorance. If you simply "put up" the light implement, it is true; but if you use it as in the new system, it is not true. On the contrary, in less than five minutes, legs, hips, back, arms, shoulders, neck, lungs, and heart will each and all make the most emphatic remonstrance against even a quarter of an hour's practice of such feats. At this point it may be urged that those exercises which quicken the action of the thoracic viscera, to any considerable degree, are simply exhaustive. This is another blunder of the "big-muscle" men. They seem to think you can determine every man's constitution and health by the tape-line; and that all exercises whose results are not determinable by measurement are worthless. I need scarcely say, there are certain conditions of brain, muscle, and every other tissue, far more important than size; but what I desire to urge more particularly in this connection is the importance, the great physiological advantages, of just those exercises in which the lungs and heart are brought into active play. These organs are no exceptions to the law that exercise is the principal condition of development. Their vigorous training adds more to the stock of vitality than that of other organs. A man may stand still and lift kegs of nails and heavy dumb-bells until his shoulders and arms are Samsonian, it will contribute far less to his health and longevity than a daily run of a mile or two. Speaking in a general way, those exercises in which the lungs and heart are made to go at a vigorous pace are to be ranked among the most useful. The "double-quick" of the soldier contributes more in five minutes to his digestion and endurance than the ordinary drill in two hours. I have said an elastic tone of the nervous system is the physiological purpose of all physical training. If one may be allowed such an analysis, I would add that we exercise our muscles to invigorate the thoracic and abdominal viscera. These in their turn support and invigorate the nervous system. All exercises which operate more directly upon these internal organs--as, for example, laughing, deep breathing, and running--contribute most effectively to the stamina of the brain and nerves. It is only the popular mania for monstrous arms and shoulders that could have misled the intelligent gymnast on this point.