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November 19, 1938

Life, Heat, and Altitude: Physiological Effects of Hot Climates and Great Heights

JAMA. 1938;111(21):1957. doi:10.1001/jama.1938.02790470069029

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There seems no great justification for the publication of this volume. From a medical or scientific standpoint, Dill's material on the physiologic effects of high temperatures and high altitudes has already been well presented in readily available journals and its points of practical importance have been widely appreciated. Insufficient linkage exists between heat and the effects of altitude to justify his attempt at unified presentation. The chapter on desert animal life is interesting. The first sections on heat deal almost exclusively with effects on the water and salt balance and on the circulatory system, neglecting entirely the changes in internal combustion and in adrenal function that are brought about by adaptation to difficulty of heat loss. Desert animal life the author oversimplifies by division into those forms which obtain their water supply from plants and those which take it as free water. Surely there are all degrees of intervening gradation,

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