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as I wish all men were taught to do in their youth ; they would on many occurrences be the safer for having that skill, and on many more the happier, as free from painful apprehensions of danger, to say nothing of the enjoyment in so delightful and wholesome an exercise. Soldiers particularly should, methinks, all be taught to swim ; it might be of frequent use either in surprising an enemy or saving themselves. And if I had now boys to educate, I should prefer those schools (other things being equal) where an opportunity was afforded for acquiring so advantageous an art, which, once learned, is never forgotten.
I know by experience, that it is a great comfort to a swimmer, who has a considerable distance to go, to turn himself sometimes on his back, and to vary in other respects the means of of proeuring a progressive motion.
When he is seized with the eramp in the leg, the method of driving it away is to give the parts affected a sudden, vigorous, and violent shock; which he may do in the air as he swims on his back.
During the great heats of summer there is no danger in bathing, however warm we may be, in rivers which have been thoroughly warmed by the sun. But to throw one's self into cold spring water, when the body has been heated by exer-
