§ From Chauncy Hall
2 September 1811, Meriden, Connecticut. Describes a diving outfit he invented in October 1810. Presents six propositions so that “a man may Live and Work in the Diveing Dress under Water,” including the capability of raising or moving ships. Recalls putting his thoughts on paper in Washington and receiving letters patent for this invention by JM’s direction in December 1810.
RC (DLC). 3 pp. Cover marked by Hall, “In Confidence.”