The total amount of duty paid during this forty years [1821-1861] on imposts was $1,191,874,443, of which67.08% to be exact.The South paid,.....................$799,508,378
The North paid,..................... 392,365,065
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Difference,.....................$407,144,313
Stephen D. Carpenter, "Mr. Lincoln's Testimony", The Logic of History, Madison, WI: S. D. Carpenter, 1864, p. 21.
Stephen D. Carpenter, "Comparative Statistics of The United States", The Logic of History, Madison, WI: S. D. Carpenter, 1864, p. 21.