The Birds of the Natuna IslandsPublished in Bulletin United States National Museum, in 1932, in volume 159, pages 1-137Mexican tailless amphibians in the United States National MuseumPublished in Bulletin of the United States National Museum, in 1932, in volume 160, pages 1-224
Mexican tailless amphibians in the United States National MuseumPublished in Bulletin of the United States National Museum, in 1932, in volume 160, pages 1-224