[Footnote 6: The latest and best statement is that of H.P. Fairchild, "Immigration," pp. 215-225, citing various opinions, and accepting the view of Walker. But he says (p. 216): "It must be admitted that this is not a proposition which can be demonstrated in an absolutely mathematical way, which will leave no further ground for argument.">[

[Footnote 7: See Vol. I, p. 429, for figures of population and of decennial rates of increase.]

[Footnote 8: The effect of the growth of cities is discussed in the
"American Journal of Sociology," Vol. 18, p. 342, in an article on
"Walker's Theory of Immigration," by E.A. Goldenweiser.]

[Footnote 9: See Vol. I, p. 420.]

[Footnote 10: See Vol. I, chs. 34 and 35.]

[Footnote 11: E.g., see above ch. 14, sec. 11 on the prodigal land policy.]

[Footnote 12: See Vol. I, p. 436 ff.]

[Footnote 13: See Vol. I, ch. 36, on machinery and wages.]

[Footnote 14: For analysis of the available statistics bearing on the subject, with conclusions that real wages are no longer rising, see H.P. Fairchild, in "American Economic Review" (March, 1916), "The standard of living-up or down?">[

[Footnote 15: Peter Roberts, in "The New Immigration," 1912, preface, p. viii, and p. 47.]