[4] Idem, p. 29.
[5] Cf. P. W. Joyce, "A Social History of Ancient Ireland," 1903; and Letourneau, "Property: Its Origin and Development," 1896.
[6] Whittaker, op. cit., pp. 30, 31.
[7] Leviticus xxv, 23-28.
[8] "Socialism: Utopian and Scientific," p. 45; Chicago, 1900.
[9] "A summary of the Principles of Socialism," p. 23; London, 1899.
[10] "Socialism: A Reply to the Pope's Encyclical," p. 4; London, 1899.
[11] "Progress and Poverty," book vii, ch. i.
[12] "La Propriété Privée," par L. Garriguet, I, 62; Paris, 1903.
[13] Cf. Ardant, "Papes et Paysans," pp. 41, sq.