Abstract
LET points representing the years of birth and death of each of a group of individuals—for example, eminent men of science—be plotted with the year of birth as abscissa and the year of death as ordinate on the same scale. Each of these life-points lies above the line y = x since y>x and, if 100 be taken for the limit of age, below the parallel y = x + 100.
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LUCAS, W. Graphical Determination of Contemporaries. Nature 133, 141 (1934). https://doi.org/10.1038/133141b0
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DOI: https://doi.org/10.1038/133141b0
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