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3431. Statistical treatment of causes of death: cooperative work relative to treatment of jointly returned causes and the revision of the international classification : plan proposed by the Committee on Demography of the American Public Health Association

3439. Report of attendance, abstracts, and review of proceedings of the Health Department of the American Social Science Association, at its annual meeting at Saratoga, N.Y., September 8, 1876: relating mainly to sanitary improvement in schools