140 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1948 
Dr. Eugene Eisenmann, lawyer of New York City and an orni- 
thologist of note, again spent some time on the island studying the 
birds and, as in the past, added many new records. The island is 
greatly indebted to him not only for sound advice, but also for his 
repeated assistance in other ways. 
W. Doyle Reed, who is in charge of the entomological work for the 
United States Army, visited the Isthmus in connection with arrange- 
ments for the extension of this work in the army units here. Many 
conferences were held with the resident manager, and a short stay 
was made on the island to get acquainted with the entomological 
studies being conducted there. He was accompanied by Maj. Osborn 
A. Kinzer, C. E., of Dallas, Tex.; Maj. J. Phoble, C. E., of the Carib- 
bean Defense Command; Maj. Ralph W. Bunn, M. Sc., of the Surgeon 
General’s Office; Walter V. Kell, O. C. E., of Washington; and Col. 
Karl R. Lundberg, M. C., of the Office of the Chief Health Officer of 
the Panama Canal. 
Jerry H. Staedeli, stationed with the army at Corozal, mainly in- 
terested in reptiles, spent 2 weeks on the island observing and record- 
ing the fauna seen, covering more than 30 miles of trails, as well as 
about 20 miles in a cayuco around the island. 
Per Host, from Norway, ornithologist and mammalogist, spent con- 
siderable time on the island, chiefly in photographic work. Never 
before has the island had a visitor with the equipment he had for 
both still and motion pictures. He made over 3,000 feet of what are 
probably the finest motion pictures ever taken of the animals of the 
island, and many hundred “stills” in black and white and in color. 
He duplicated successfully a number of the experiments recorded by 
Chapman with the versatile coati-mundi, and has a splendid series 
of motion pictures of these in color. He also has slow-motion pictures 
of animals climbing and leaping. Most of his spectacular photography 
was taken from the main laboratory site. In his own words: “I am 
extremely satisfied both with the opportunities for getting pictures 
that I enjoyed, and for the education and introduction to the Tropics 
made possible by this unique combination of easy access to observa- 
tions of a virgin jungle with the facilities of the laboratory and 
library.” 
Dr. C. C. Soper, in charge of the Tropical Research Laboratory of 
Eastman Kodak Co., continued his studies throughout the year on the 
effects of tropical conditions. Valuable data have been obtained on 
the keeping quality of film, papers, chemicals, and photographic equip- 
ment in general. Data have also been obtained on the tropical deteri- 
oration of photographic negatives and prints, particularly the de- 
terioration attributable to biological origin. The studies on the island 
are also adding rapidly to the problems of tropical lighting conditions, 
