Statesman, industrialist, ethnologist, archaeologist and lecturer, Gliddon spent much of his life in Egypt where he was U. S. Consul. Later in America he became a great admirer of Samuel G. Morton and joined with Nott, Squier, and others to ballyhoo Morton's discoveries and theories of the multiplicity of the human species. Friendly also with J. A. Meigs through whom Gliddon's papers came to the Academy, he was elected a Corresponding Member in 1841. This collection consists of a long folded sheet of text for Chapter 5 for one of Gliddon's books on “Unity of Man”, a nine page manuscript biography of unidentified authorship and a news clipping obituary notice taken from the New York Herald of November 30, 1857.