HOW TO LIVE LONG.

Dr Everett Halo, who was in London fcho other day, is one of the wonderful old men of America. Ho is sevonty-twq yours of ago, has written scores of books,' and has otherwise Kved an exceedingly busy life, but is as hearty as most mon~ab forty. Ho lias been telling an American contemporary something of the secret of his own capacity and what lie puts in the forefront as the prime necessity of health is sleep, and enough of it. IEo always himself sleeps ton, hours out of the twenty-four. About food, the less thought of, Dr Halo believes the better. lie advises everybody to tako time enough for their meals and to cut them in company whenever possible. The modem fad of the doctors— of meals often and light— is, lie thinks, a good one. " You should never sit down to the table to eat when you come in from work dead tired. Lie down for ten minutes first or take a cup of tea, or even of wine—that fa what wine is for, and the only thing it is for. But, before you eat, wait till the machine is a little rested or refreshed," Dr. Hale further insists on the opon air and enough of it every day — rain or shine. A man ought to oo able to walk six miles a day without feeling tired. Bub it is rather a matter of time in the aiv than of physical exercise. For body or mind J)r. Hale does not believe in getting tired for the sake of resting. The work of a tired brain is useless, and it is a mistako to overstrain a tired body if it can bo helped. Sir Walter Scott and Bulwer Lytton said that for literary men threo hours' work a day was all that waa good for anything. A high authority has stated that a child s capacity for learning is at an end after three horns. And both these statements Dr. Halo believes to bg quite true.