The Lower Permian insects of Kansas. Part I. Introduction and the Order MecopteraPublished in Bulletin of The Museum of Comparative Zoology Harvard, in 1930, in volume 70, pages 69-101The holothurians of the western part of the Atlantic OceanPublished in Bulletin of the Museum of Comparative Zoology, Harvard, in 1930, in volume 71, pages 43-236
The holothurians of the western part of the Atlantic OceanPublished in Bulletin of the Museum of Comparative Zoology, Harvard, in 1930, in volume 71, pages 43-236