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22415. The causation of cold-weather diseases: an attempt to explain the causation of inflammations of the air-passages, and the seasonal susceptibility to certain communicable diseases which are shown to be most prevalent in cold weather

22416. Memoranda for the guidance of railroad officials, heallth officers, physicians and others, relative to what are "communicable diseases dangerous to the public health": with reference especially to Act 45, Laws of 1895