917.26 Sha P Shattuck, George Cheever, 1879-The península of Yucatán; medical, biological, meteorological and sociological studies, by George Cheever Shattuck… in collaboration with… Joseph C. Bequaert…Francis G. Benedic [and others] Washington, Carnegie Institution of Washington, 1933 xvi, 576p. frontp. , illus., plates (incl. Ports.) 2 fold. font. Maps, diagrs. 30-x23cm. (On verso of i.-p:Carnegie Intitution of Washington. Publication no. 431)