The papers consist of correspondence; writings on linguistics, science and religion; miscellaneous biographical material; and lantern slides. Nearly three-fourths of the papers consist of Benjamin Whorf's writings on linguistics, including drafts of published works, unpublished manuscripts, research notes on his trip to Mexico in 1930 and on Hebrew, Maya, Hopi and other languages. Also included are articles by others, chiefly on Indian languages. The correspondence, which is entirely professional, includes Franz Boas, Frans Blom, Clyde Kluckhohn, Alfred Kroeber, J. Alden Mason, Edward Sapir, Herbert Spinden, Alfred M. Tozzer, George L. Trager and Charles F. Voegelin.