gans, followed, soon or late, by more or less pronounced chill, febrile reaction and diaphoresis, the physiologic and pathologic expressions of thermometric and hygrométrie environment. A simple and rational prophylaxis will readily suggest itself to those who are not wedded to the old ruts, and who do not go " round Robin Hood's barn," to find causation. If, instead of wooing the cool and chilling air of night in the garb of fashion, or going to sleep in the damp clothes worn during the day,

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... d half covered, those living in such localities would pay due regard to ordinary hygienic laws, and take a friction bath, damp or dry, as night approaches, put on dry warm clothing, and sleep be¬ tween flannel blankets, they may laugh to scorn both the marsh poison and pathogenic germs of even the lagoons of Hindostán, or the swamps of Louisiana.