From William Ellery
[Newport, Rhode Island, January 25, 1791. “… By the last Post I received the substitute hydrometer with the apparatus which you transmitted, with your letter of the 18th of the last month,1 and a description of Dycas’s Hydrometer, with directions for the use of it, and directions also for the use of the Substitute.…”
LC, Newport Historical Society, Newport, Rhode Island.
1. “Treasury Department Circular to the Collectors of the Customs,” December 18, 1790 (PAH description begins Harold C. Syrett, ed., The Papers of Alexander Hamilton (New York and London, 1961– ). description ends , VII, 368–72).