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("Chats on Science” by E.E.  Slosson is published by The Century Company, 353 Fourth Avenue, New York City.  It is sold for $2.00 at all bookstores, or it may be ordered from the publisher.)

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.