[66] Gold produced before 1492 represents an insignificant part of the existing supply.
[67] Useful tables summarizing all of these index numbers, except those of Canada, are given by Achille Necco, in his article on La curva dei prezzi delle merci in Italia negli anni 1881-1909, in La Riforma Sociale, Sept.-Oct., 1910.
[68] Comparison is for 1897 and 1906, figures for 1907 not being available.
[69] De Launay thinks that the industrial consumption averages somewhere between 40 and 50 per cent. of the annual output, but believes that for several years past the industrial uses have been absorbing a decreasing proportion, though an increasing amount. (The World's Gold, pp. 176-7.)
[70] Bulletin, Am. Econ. Assoc., Fourth Series, No. 2, 1910, pp. 59-61.
[71] Ibid., pp. 61-63.
[72] Ibid., p. 64.
[73] The quotation here referred to is omitted.—Editor.
[74] Ibid., pp. 64-65.
[75] Ibid., pp. 65-67.