Mammalian Longevity

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THE letter of Dr. Ainslie Hollis in NATURE of January 5, on “The Curve of Life,” shows that the ratio existing between the periods of maturity and the periods of after-life in various mammals are capable of projection in a regular curve. This led me to inquire if the ratios might not be capable of reduction to a general formula. This seems to be the case, the statement being as follows:—

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BELL, E. Mammalian Longevity. Nature 59, 486 (1899) doi:10.1038/059486a0

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