Twenty-three items consisting of signatures, ALSs, and TLSs, on various size slips, cards, sheets, and government postcards, each signed by a different scientist. Signers are: Alfred Kinsey, George Gallup, David Lilienthal, George Sperti, J. H. Jeans, Richard Tolman, Miller Reese Hutchison, Karl Compton, Arthur Little, George Shull, Park Struthers, George Moler, John Merriam, Henry Osborn, William Beebe, William Patten, Samuel Stratton, Kenneth Mees, Julius Nieuwland (2), and Leonor Michaelis. In very good condition, with various scattered toning, folds to letters, and mounting remnants to many of the corners. RRAuction COA.