FOOTNOTES:
[1] I am quoting mostly Unstead's figures from the Geographical Journal of 1913. See also Dickson's "The Distribution of Mankind," in Smithsonian Report, 1913.
[2] United States Abstract of Census of Manufactures, 1914, p. 34.
[3] United States Department of Agriculture, Bulletin No. 505.
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Transcriber's notes: Footnotes moved to end of book. The book starts using the word "CHAPTER" only after its chapter number XI. I have left it the same in this text. |