Folder 1 1878-1879. 1 page letter regarding the return of an original once it had been read, January 22, 1878; Letter to Henry from J. G. Walker, February 6, 1878; Report of Inspection of Lot No. 1 Lard Oil, May 2, 1878; Letter to Secretary of the Treasury from George Dewey, May 21, 1878; Pages regarding Henry after the time of his death, May 1878; Letter recommending an appropriation to be paid as compensation for services rendered the government by the late Professor Joseph Henry as a member of the Light-House Board, June 5, 1878; A Summary of Researches In Sound: Conducted in the Service of the United States Light-House Board, by Joseph Henry, During the Years 1865 to 1877, 1879.