Page:Graphic methods for presenting facts (1914).djvu/150

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From the United States Statistical Atlas, Census of 1900
Fig. 120. The Population of the United States Compared with the Population of the Principal Countries of Europe from 1800 to 1900, Inclusive

Written words requiring one hour to read could not convey as much information as this chart gives. In considering the slope of the curve for the United States it must be remembered that the slope of a curve does not indicate the percentage rate of increase or decrease. The increasing slope of the United States curve does not in itself prove any increase in the percentage rate of growth. Compare Fig. 121