[Washington, D.C.]: Carnegie Institution of Washington, 1938. First edition "First issued June 15, 1938." Hardcover. Quarto in dark green cloth bds.; iii, 304 p. illus., plates, diagrs. 29 x 23 cm. ; refs. Minor wear to board edges and corners; some tiny white speckles and rubbing to boards; light foxing to edges of endpapers; else overall Near Fine(-) to Very Good(++); bright and crisp within. Item #12367
Series: Carnegie Institution of Washington publication; no. 491. // Cave animals. Caves. Zoology -- Mexico -- Yucatán (State).
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