REPORT OF THE SECRETARY O 



devoted to the cntical study of Annenian, Chinese, and Japanese 

 texts associated with acquisitions, and to the transhition of Arabic 

 and Persian manuscript texts. Visitors totaled 120,732. The 

 gallery issued "The Story of Kfdaka", by W. Norman Brown, the 

 lirst volume in its series of Oriental Studies. In spite of disturbed 

 conditions in Ciiina, the field staff of the Gallery conducted archeo- 

 logical explorations throughout a large part of Shansi Province. 



Bureau of American Ethnology .—T\\& Bureau continued its studies 

 of the American Indians, the members of its staff being occupied both 

 in field work and in prepaiing for pubhcation the results of their 

 investigations. xVttention was given particularly to the ethnology 

 of the southeastern Indians, the Cheyenne and Arapaho of the West, 

 the Foxes of Iowa, the Indians of southern Cahfornia, and the Iroquois 

 of New York State and Canada, and to archeological hivestigations in 

 Arizona, in Nebraska, and in the mound area of the Mississippi 

 Valley. In the study of Indian music many songs were recorded 

 among the tribes in the Gulf States. 



International exchanges. — The number of packages handled during 

 the year, in the official exchange with other countries of parliamentary 

 and departmental documents and scientific and hterary publications, 

 was 720,209, with a total weight of 634,707 pounds. 



National Zoological Park. — A total of 1,330 animals were added 

 during the year, and 1,136 were removed through various causes, 

 bringing the collection on June 30, 1933, to 2,496 animals. The 

 attendance was 2,463,350, including classes from 628 different schools 

 in various parts of the country. Although no new construction of 

 buildings was undertaken, a number of needed improvements were 

 completed, including the laying of a larger water main from the 

 Connecticut Avenue main, providing a more adequate supply of 

 water to the west side of the park and greater fire protection. 



Astro physical Observatory. — Progress was made on the dependence 

 of terrestrial temperature departures on the variation of the sun; 

 studies were begun on the dependence of terrestrial temperature 

 departures on the ozone content of the atmosphere; and solar-radiation 

 observations were continued at Table Mountain, Calif., and Monte- 

 zuma, Clule. Financed by Mr. John A. Roebhng, a new observing 

 station is being equipped on Mount St. Katherine, near Mount Sinai 

 in Egypt, under the charge of Harlan H. Zodtner, assisted by Frederick 

 A. Greeley. A new radiation-measuring instrument, called the 

 kampometer, has been devised by Dr. Abbot and used with success in 

 preliminary measurements of the extreme infrared solar spectrum. 



Division of Radiation and Organisms. — In March 1933 the Secretary 

 undertook the general charge of the division, succeeding the former 

 director, Dr. F. S. Brackett, who continued with the division on a 

 part-time basis as consulting physicist. Dr. E. S. Johnston was 



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