As to the locomotive system, modern experience sufficiently proves that exercise is the most powerful strengthener of the muscles, and of every part on which activity depends. In its operation on the vital system, training always appears to benefit the state of the lungs. Indeed, one of its most striking effects is to improve the wind: that is, to enable a man to draw a larger inspiration, and to hold his breath longer. As to the intellectual system, Sir J. Sinclair observes, that, by training, the mental faculties are also improved; the attention being more ready, and the perception more acute, owing probably to the clearness of the stomach, and better digestion. It must, therefore, be admitted, that the most beneficial consequences to general health arise from training. The simplicity of the rules for it is assuredly a great recommendation to a trial of the experiment. The whole process may be resolved into the following principles:--1st, the evacuating, which cleanses the stomach and intestines; 2nd, the sweating, which takes off the superfluities of fat and humours; 3rd, the daily course of exercise, which improves the wind and strengthens the muscles; and, lastly, the regimen, which nourishes and invigorates the body. To those who are to engage in corporeal exercises beyond their ordinary powers, it is indispensably necessary. Pedestrians, therefore, who are matched either against others or against time, and pugilists who engage to fight, must undergo the training process before they contend. The issue of the contest, if their powers be nearly equal, will, in a great measure, depend upon their relative condition, as effected by training, at the hour of trial.