Report on the Canal Zone Biological Area 



Sir : It gives me pleasure to present herewith the annual report on 

 the Canal Zone Biological Area for the fiscal year ended June 30, 

 1956. 



SCIENTISTS AND THEIR STUDIES 



During the fiscal year 43 scientists came to Barro Colorado Island 

 to do research in their respective fields. This is 21 more than last year. 

 The following list does not include the large number who came to get 

 acquainted with the island but who could spend only a day or two 

 there. 



Investigator 

 Abegg, Dr. Roland, 



University of Louisiana. 

 Ansley, Dr. Hudson, 



Jotins Hopkins University. 



Barnard, Dr. J. Laurens, 

 Allan Hancock Foundation. 



Chickering, Dr. A. M., 

 Albion College, Michigan. 



Clark, Dr. \^7 alter, 



Eastman Kodak Research Labora- 

 tory, Rochester, N. Y. 



Dawson, Dr. J. Wm., 



New Zealand to California. 



Eisenmanu, Dr. Eugene, 

 New York City. 



Enders, Dr. Robert K., 

 Swarthmore College. 



Freund, Rudolf, 

 Life Magazine. 



Gr^goire, Dr. Ch., 



L'Universit6 de Lifege. 

 Gr^goire, Dr. Jenny Legasse, 



Brussels, Belgium. 

 Haig, Miss Jauet, 



Allan Hancock Foundation. 

 Harrell, Dr. Byron E., 



University of Minnesota. 



Principal interest or special study 

 Observational studies of birds and 



plants. 

 Collection and preservation of certain 

 peutatomids, scutigerids, and related 

 forms for spermatogenesis studies. 

 Fresh-water amphipods. 



Continuation of intensive study of the 



spider fauna. 

 Evaluation of extensive corrosion and 



deterioration tests. 



To know the richness of the island's 

 flora and plant ecology. 



Continuation of studies of birds of the 

 island. 



Survey of mammalian fauna and pres- 

 ervation of material for histological 

 and embryoloffical studies of agouti, 

 Proechimys, and sloth. 



Photography of army ant life for ex- 

 tensive paper on these, and collection 

 of much new data and specimens for 

 future articles. 



Mechanism of coalgulation of insect 

 haemolymph. 



Collection of insects for Dr. Gr6goire's 

 studies. 



To study the biota for future trips. 



Natural areas in middle America, dis- 

 tributional studies of birds in cloud 

 forests, ecology of birds of neotropi- 

 cal rain forest ; behavior of Peripatus, 



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