Prof. Greet has presented Columbia with a collection of letters which he has received from numerous authors, including John Mason Brown, John Cheever, John Dos Passos, Marianne Moore, and 27 from H.L. Mencken. Of special interest is a notebook of letters concerning Greet's dictionary, WORLD WORDS, puiblished in 1944 by CBS as an aid in the understanding and pronunciation of new and foreign words. The notebook contains letters from Henry A. Wallace, George Marshall, Cordell Hull, J. Edgar Hoover, and more than 50 other public officials