[1]I am quoting mostly Unstead's figures from theGeographical Journalof 1913. See also Dickson's "The Distribution of Mankind," in Smithsonian Report, 1913.
[1]I am quoting mostly Unstead's figures from theGeographical Journalof 1913. See also Dickson's "The Distribution of Mankind," in Smithsonian Report, 1913.
[2]United States Abstract of Census of Manufactures, 1914, p. 34.
[2]United States Abstract of Census of Manufactures, 1914, p. 34.
[3]United States Department of Agriculture, Bulletin No. 505.
[3]United States Department of Agriculture, Bulletin No. 505.