Buenos Aires: Facultad de Filosofia y Letras de la Universidad de Buenos Aires, 1940. Paperback. 374p., 6x9 inches, text in Spanish, signatures unopened for the most part, paperback in drab green/grey wraps, cover is a little edgeworn with a small snag at the heel, textblock has a bad bump to top corner which affects every leaf (not quite impinging on print-blocks), clean and otherwise sound, a good copy. Biblioteca de Dialectologia Hispanoamericana, tomo VI.
Central secion by Lenz was translated from German. Cover verso and copyright page bear this ownership stamp: "Library of S. Griswold Morley;" this Morley is a nonentity but his son, also FN Sylvanus, googles as a topflight mesoamerican archaeologist, a sometime Office of Naval Intelligence spy during World War I, and possibly one of the models for Spielberg's archaelogical trilogy starring Harrison Ford. Why did offspring of an academic produce a "topflight ONI guy"? --your next thesis.