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112 can almost defy dyspepsia by sleeping in a cross-draught, or in cold weather at least near a half-open window. Cold, fresh air is an invaluable aid to the assimilation of non-nitrogenous articles of food (fat meat, butter, etc.). Stifling bedrooms neutralize the effects of outdoor exercise. Winter is, therefore, on the whole the most propitious time for beginning a dyspepsia cure. In summer a highland sanitarium is the best place to start with; or, for coast-dwellers, a breezy sea-shore.

The efficacy of an air-bath as a cure of insomnia is suggested by the hypnotic influence of refrigeration. At least a dozen different species of our North American mammals get drowsy enough in cold weather to go to sleep about the end of November and postpone their awakening till spring. We sleep sounder in winter than at any other time of the year, and Dr. Franklin, who, like Bacon and Goethe, had the gift of anticipative intuitions, recommends air sitz-baths as an excellent substitutes for opiates. "In summer-nights, when I court sleep in vain," he says, "I often get up and sit at the open window or at the foot of my bed, stark-naked for a quarter of an hour. That simple expedient removes the