SECRETARY'S REPORT 



133 



Investigator 



Ansley, Dr. Hudson, Johns Hopkins 

 University. 



Carr, Dr. Archie, University of Florida. 

 Elliott, Dr. Alfred, University of Michi- 

 gan. 



Everest, F. Alton, Moody Institute of 

 Science, Los Angeles, Calif. 



Grinnell, Dr. and Mrs. Laurence I., 

 Ithaca, N. Y. 



Hodgson, Dr. Edward S., Barnard Col- 

 lege. 



Lundy, William E., Panama Canal 

 Company. 



Luti, Ricardo, Argentina. 

 Mena, Anselmo, Canal Zone. 

 Morris, Robert C, Gulfport Station of 

 U. S. Forest Service. 



Pierson, Dr. and Mrs. H. L., Hampton, 



N. H. 

 Soper, Cleveland C, Tropical Research 



Laboratory, Eastman Kodak Co. 

 Treichel, Dr. George W., University of 



California. 

 Udey, Edwin C, Moody Institute of 



Science, Los Angeles, Calif. 



Wagner, Dr. and Mrs. Richard, Cam- 

 bridge, Mass. 



Weatherwax, Dr. Paul, Indiana Uni- 

 versity. 



Wetmore, Dr. and Mrs. Alexander, 

 Smithsonian Institution. 



Woodring, Dr. and Mrs. W. P., U. S. 

 Geological Survey. 



Principal {nterest or special study 



Preservation of material for spermato- 

 genesis studies of certain pentato- 

 mids, scutigerids, and related forms. 



Herpetology and tropical ecology. 



Extensive collections of fresh-water 

 ciliates {Tctrahymena pyriformis) 

 for possible biological mutants. 



With Edwin C. Udey, to study and ap- 

 praise the broad features of the 

 photographic program to be developed 

 by Udey. 



Ecological studies of birds, with long 

 series of photographs. 



Studies for Office of Naval Research. 



Detailed studies of mammals, birds, and 

 insects, for future accounts in the 

 magazine Natural History. 



Plant ecology. 



Assistance to Dr. W. P. Woodring. 



Periodic examination of the interna- 

 tional and other tei-mite tests started 

 by Snyder and Zetek, and those by 

 Kowal and Morris. 



Photography of plant and animal life 

 and natural-history studies. 



Deterioration and corrosion of photo- 

 graphic equipment and supplies. 



Geographical and botanical field work 

 and mapping. 



Motion and still photography, both color 

 and black and white, covering the 

 behavior of the island animal and 

 plant life, documented for a lecture 

 film on Barro Colorado Island. 



Photographic study of plants, birds, 

 mammals, and habitats. 



Study of the grasses of Barro Colorado. 



Inspection of the physical plant, and 

 continuation of studies of the birds 

 of the island. 



Stratigraphic relations of the fossilifer- 

 ous beds of early Tertiary age in 

 Gatuu Lake near Barro Colorado, and 

 new fossil deposits of the island ; 

 progress on a new map of the island, 

 and manuscript on the geology of 

 Barro Colorado. 



