Silk top hat given by Isaac Roberts to Liberty Hyde Bailey and then passed on to other Deans of the College of Agriculture and Life Sciences at Cornell University. Documentation includes ten letters relating to the "Dean's Hat"; correspondents include Liberty Hyde Bailey, Carl E. Ladd, Mary Roberts Coolidge, William I. Myers, C. E. Palm, W. Keith Kennedy, Beverly T. Galloway, I. P. Roberts, and Alfred R. Mann. Also, a scroll describing the tradition of the hat. Also a twig pen belonging to Bailey.Photographs of the "Passing of the Hat" ceremony with the incoming Dean of the Colleg of Agriculture and Life Sciences Kathryn Boor and former Dean Susan Henry, Saturday, June 12, 2010. Also letter from Dean Boor to Dean Benjamin Houlton. Collection includes Dr. Bailey's twig pen (MU-689- Box 1), gift of J. Eliot Coit (90 Ocean View Drive, Vist California).