Top row: M. J. Greenman, director of the Wistar Institute; Caswell Grave, professor oz Zoology, Washington; E. Newton Harvey, Professor of Physiology, Princeton; Walter E. Garrey, Professor of Physiology, Vanderbilt School of Medicine; W. C. Allee, Professor of Zoology, Chicago; E. R. Clark, Professor of Anatomy, Pennsylvania; Lawrason Riggs, Treasurer of the Marine Biological Laboratory, D. H. Tennent, Professor of Biology, Bryn Mawr; Robert Chambers, Professor of Biology, New York University; C. C. Speidel, Professor of Anatomy, Virginia; G. H. Parker, Professor of Zoology, Harvard; Franz Schrader; Professor of Zoology, Columbia; H. B. Goodrich; Professor of Biology, Wesleyan; B. H. Willier, Professor of Zoology, Chicago.

Middle rows: H. C. Bumpus, Brown; B. M. Dugger, Professor of Physiological and Economic Botany, Wisconsin; L. L. Woodruff, Professor of Protozoology, Yale; C. R. Stockard, Professor of Anatomy, Cornell Medical College; R. S. Lillie, Professor of General Physiology, Chicago; E. B. Wilson, Emeritus Professor of Zoology, Columbia; T. H. Morgan, Professor of Biology, California Institute; R. G. Harrison, Professor of Comparative Anatomy, Yale; L. V. Heilbrunn, Associate Professor of Zoology, Pennsylvania; Frank P. Knowlton, Professor of Physiology, Syracuse College of Medicine.

Bottom row: E. G. Conklin, Emeritus Professor of Zoology, Princeton; H. H. Donaldson, Professor of Neurology, Wistar Institute; W. B. Scott, Emeritus Professor of Geology and Paleontology, Princeton; Cornelia M. Clapp, Emeritus Professor of Zoology, Mount Holyoke; M. H. Jacobs, Professor of General Physiology, Pennsylvania; F. R. Lillie, Professor of Embryology, Chicago; Gary N. Calkins, Professor of Zoology, Columbia; A. P. Mathews, Professor of Biochemistry, Cincinnati; W. R. Amberson, Professor of Physiology, Tennessee; Charles Packard, Assistant Professor of Zoology, Columbia.