[144] Book II, Chapter I. This subject has been discussed in detail in "Government or Human Evolution," Book II, Chapter II, p. 273, et seq., by the author.

[145] "Economy of Manufacture." Babbage (London, 1832), p. 246.

[146] M. DeLesseps has stated that it cost England £100,000,000 to change its shipping so as to fit it for passage through the Suez Canal, and this expense applies more or less to change of machinery due to invention in every factory.

[147] Book III, Chapter II.

[148] "Capital," Part IV, Chapter XV.

[149] Issued by the Government Printing Office in 1904, entitled, "Cost of Living and Retail Prices of Food."

[150] "Cost of Living and Retail Prices of Food," pp. 18, 90-102, 516-93.

[151] "The Standard of Living Among Workingmen's Families in New York City," by Robert Coit Chapin, Ph.B., Charities Publication Committee, 1909, p. 178, et seq.