By George Lincoln Walton, M.D., Houghton, Mifflin & Co., Boston, Mass.] I am not so foolish as to imagine for one moment that I can correct the worrying tendency of the age, but I do want to be free from worry myself, to show others that it is unnecessary and needless, and also, that it is possible to live a life free from its demoralizing and altogether injurious influences..