United States. Department of the Treasury. "Cheapest and Best Taxes to Retain," 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) : 55-56. https://fraser.stlouisfed.org/title/194/item/5532/toc/339713 , accessed on April 28, 2024.