[125] Social Adjustment, New York, 1911.
[126] “Report on National Vitality,” Bulletin of the Committee of One Hundred on National Health, July, 1909, No. 30.
[127] How to Live, New York, 1915, Section 7.
[128] “The Extension of Human Life,” Sci. Am. Sup., May 4, 1916.
[129] Social Insurance, New York, 1913, Chap. 12, “The Old Man’s Problem in Modern Industry.”
[130] “The Biology of Death,” Sci. Mo., March-Sept, 1921, incl.
[131] Old Age Pensions: Their actual working results in the United Kingdom, London, 1915, 196 pp.
[132] Edith Sellers, “From the Old Age Pensioners’ Standpoint,” Nineteenth Century, Jan., 1920.
[133] Report of the Massachusetts Commission on Old Age Pensions, Annuities and Insurance, Jan., 1910, 409 pp.
[134] “Canadian Government Annuities,” Polit. Sci. Quar., 1915, p. 425 et seq.