ANTHROPOLOGY AND THE MELTING POT—STEWART 319 
FOREIGN UNoer 25 Years or Ace 
2 Native UNDER 25 
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e NATIVE 25-36 
CO PO, wane ae FOREIGN 35-44 
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NATIVE 35-44 
BrirTnHs PER 
Fieurp 2.—Annual number of births per 1,000 married white women of specified age and 
nativity. Up-State New York, 1917-1934. (From Kiser. 1936, fig. 2.) 
200 
175 
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= UNITED STATES 
= 125 | 
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i700 20 40 60 80 1600 20 40 60 80 190020 40 60 60 200020 40 60 60 2100 
YEAR 
FicurE 3.—Using the method of successive least square approximations, a smooth curve has 
been fitted to the census counts from 1790 to 1940, inclusive (given in circles). The 
dotted line shows the further extrapolation of the same curve. According to the predic- 
tion of this logistic curve, the population of the United States should stabilize around the 
year 2100 at about 184 millions. (From Pearl et al., 1940, fig. 2.) 
