- A Boston merchant, in "lending a hand," on board one of his own ships on a windy day, found himself, at the end of an hour and a half, pretty well exhausted and perspiring freely. He sat down to rest, and engaging in conversation, time passed faster than he was aware of. In attempting to rise he found he was unable to do so without assistance. He was taken home and put to bed, where he remained two years; and for a long time after could only hobble about with the aid of a crutch. Less exposures than this have, in constitutions not so vigorous, resulted in inflammation of the lungs - "pneumonia" - ending in death in less than a week, or causing tedious rheumatisms, to be a source of torture for a lifetime. Multitudes of lives would be saved every year, and an incalculable amount of human suffering would be prevented if parents would begin to explain to their children, at the age of three or four years, the danger which attends cooling off too quickly after exercise, and the importance of not standing still after exercise, or work, or play, or of remaining exposed to the wind, or of sitting at an open window or door, or of pulling off any garment, even the hat or bonnet, while heated.