68 REPORT OF NATIONAL MUSEUM, 1910. 
It is impossible to. adequately describe the character and value 
of the work done in photography. Its primary object is to produce 
illustrations for the publications of the Museum, but in some subjects 
photographic prints furnish the only means for making an intelli- 
gible record of specimens in connection with the cataloguing and 
descriptive notes. Photography has also to be extensively resorted 
to for the reproduction of plans relating to structural features of 
the buildings and of furniture. During the past year the work 
accomplished may be briefly summed up as follows: The number of 
negatives made was 1,136; of silver prints, 1,410; of velox prints, 
905; of blue prints, 2,777; of lantern slides, 24; of bromide enlarge- 
ments, 10; and of transparencies, 10. 
CONGRESSES AND MEETINGS. 
Geological Society of America.—At the twenty-second annual meet- 
ing of this society, held in Boston, Massachusetts, from December 28 
to 31, 1909, in connection with the meeting of the American Associa- 
tion for the Advancement of Science, the Museum was represented by 
Dr. Ray S. Bassler, curator of invertebrate paleontology. 
National Academy of Sciences.—For the public sessions of the 
National Academy at its annual meeting in Washington from April 
19 to 21, 1910, temporary arrangements were made in one of the 
exhibition halls in the Museum building, accommodations for the 
business meetings being furnished in the Smithsonian building. 
International Congress of Botany.—Mr. Frederick V. Coville, curator 
of the division of plants, represented the Museum at the International 
Congress of Botany, held in Brussels, Belgium, May 14 to 22, 1910. 
Seventeenth International Congress of Americanists.—At this con- 
gress, held in Buenos Aires, Argentina, May 16 to 20, 1910, Dr. Ales 
Hrdli¢ka, curator of the division of physical anthropology, served as 
a delegate on behalf of the Institution and Museum, and also of the 
United States Government. 
Fitth International Congress on Ornithology.—Mr. William Duteee 
of New York City, acted as the representative of the Government, the 
Institution, and the Museum at this congress, held in Berlin, Ger- 
many, May 30 to June 4, 1910. 
Eighth International Zoological Congress—Dr. Charles Wardell 
Stiles, of the Public Health and Marine-Hospital Service, Dr. William 
R. Kellicott, of Goucher College, Baltimore, Maryland, Dr. Herbert 
Haviland Field, director of the Concilium Bibliographicum, Zurich, 
Switzerland, and Mr. Austin H. Clark, of the Museum staff, have been 
designated as delegates on the part of the Institution and Museum, 
as well as of the United States Government, to the Eighth Inter- 
national Zoological Congress, to be held in Gratz, Austria, August 
15 to 20, 1910, 
