United States. Department of the Treasury. "Surplus Taxation $125,000,000 a Year," in United States. Department of the Treasury. "Annual Report of the Secretary of the Treasury on the State of the Finances for the Year 1886, Volume I: Finance," Annual Report of the Secretary of the Treasury on the State of the Finances (1886) : 40-41. https://fraser.stlouisfed.org/title/194/item/5532/toc/339701 , accessed on April 24, 2024.