1909, original wrappers with tears to spine. Zoologica Vol. I, Numbers 2, 3: Ecology of the Hoatzin, pp. 45-66. Map. Black and white photographs; An Ornithological Reconnaissance of Northeastern Venezuela. General description of the Mangrove Forest, Mainland Forest and Pitch Lake. Annotated list, pp. 67-114. Map. Black and white photograpahs.