. The biology of death; being a series of lectures delivered at the Lowell Institute in Boston in December 1920. Death (Biology). n 6 10 2 3 S 4 IZ 14 15 ARUONDISSEMEim CLASSES OF ARRONaSSMlfTS FiQ. -Distribution of poverty in Paris (1911-13) as indicated by exemption from pereonal property tax. (After Hersch). that environmental conditions in general can, and under some circumstances, do exert a marked influence upon expectation of life. A recent study of great interest and suggestiveness, if perhaps some lack of critical sound- ness, by the eminent Swiss statistician, Hersch, may be cit


. The biology of death; being a series of lectures delivered at the Lowell Institute in Boston in December 1920. Death (Biology). n 6 10 2 3 S 4 IZ 14 15 ARUONDISSEMEim CLASSES OF ARRONaSSMlfTS FiQ. -Distribution of poverty in Paris (1911-13) as indicated by exemption from pereonal property tax. (After Hersch). that environmental conditions in general can, and under some circumstances, do exert a marked influence upon expectation of life. A recent study of great interest and suggestiveness, if perhaps some lack of critical sound- ness, by the eminent Swiss statistician, Hersch, may be cited in this connection. Hersch became interested in the relation of poverty to mortality. He gathered. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pearl, Raymond, 1879-1940. Philadelphia, London, J. B. Lippincott Company


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