Our readers will recall the notoriety given in the public press to the announcement from Germany that Metchnikoff had found in sour milk the elixir of life and the cure for the decay of old age. Lest some may miss it, we can not let this issue go out without calling attention to the scholarly article by Dr. Herter, who discusses the practical basis for the benefit to be secured from sour milk in certain cases of intestinal fermentation. Here is a discussion full of suggestion for the general practitioner. Many times we call attention to such articles as these because the hasty reader may skip them and lose the suggestion that he needs for some of his baffling cases. That he who has to run may know where to stop and read is the purpose of the Digest on the front cover of The Journal each week.