169 it. There is no harm in a man's experimenting with opium-smoking or feeding on nuts; but the moment he ceases to examine, to act from habit and without reflection, he is in trouble. We all of us eat too niucli, l)ecause people, liveried and obsequious, have always bustled up five times daily with six months' provisions, and it was less trouble to feed and be done with it, than to examine the question whether we were hungry. If you cook your own food, you soon find that you don't rook more or less than you want; and health returns. If, however, you go to the other extreme and think of nothing but diet, you are almost sure to acquire that typical form of melancholia, in which the patient is convinced that all the world is in league to poison him. Professor Schweinhund has shown that beef causes gout; Professor Naschtikoff proves that milk causes consumption. Sir Ruffon Wratts tells us that old age is brought on by eating cabbage. By and by you reach the state of which Mr. Hereward Carrington makes his proud boast: your sole food is chocolate, which you chew unceasingly, even in your dreams. Yet no sooner have you taken it into you than you awake to the terrible truth demonstrated by Guterbock Q. Hosenscheisser, Fourth Avenue, Grand Rapids, that chocolate is the cause of constipation, and con- stipation of cancer, and proceed to get it out of you by means of an enema which would frighten a camel into convulsions. A similar madness attacks even real men of science. Metchnikoff