SECRETARY'S REPORT 9 



the Smithsonian Traveling Exhibition Service circulated 86 exhibi- 

 tions, 81 in the United States and 5 abroad. 



Freer Gallery of Art. — Purchases for the collections of the Freer 

 Gallery included Chinese bronzes, jade, paintings, and pottery ; Japa- 

 nese lacquer work, paintings, and pottery; Persian gold work and 

 Persian, Armenian, and Iraq manuscripts; and an Indian (Mughal) 

 painting. The Gallery continued its program of illustrated lectures 

 in the auditorium by distinguished scholars in Eastern art. Air- 

 conditioning of the building was completed during the year. 



National Air Museum. — During the year 1,050 specimens in 33 

 separate accessions were added to the aeronautical collections, includ- 

 ing a Bell VTOL aircraft with 2 jet engines, valuable material per- 

 taining to planes of the Wright brothers, several fine scale models, 

 and a large and historically valuable collection of instruments. 



National Zoological Park. — The Zoo accessioned 1,851 individual 

 animals during the year, and 2,965 were removed by death, exchange, 

 or return to depositors. The net count at the close of the year was 

 3,157. Noteworthy among the additions were a pair of white 

 rhinoceroses, an African elephant, a young Asiatic elephant, a pair 

 of okapis, a pair of snow leopards, a very rare Colombian red-eyed 

 cowbird, and prized Pacific sea snakes. Visitors totaled almost 4 

 million. 



Canal Zone Biological Area. — The year's visitors to Barro Colorado 

 Island totaled about 750, of whom about 60 were scientists using the 

 station's facilities for special researches, particularly in wildlife ob- 

 servation, forest ecology, photography, and certain insect studies. 



International Exchange Service. — As the official United States 

 agency for the exchange of governmental, scientific, and literary pub- 

 lications between this country and other nations, the International Ex- 

 change Service handled during the year 1,205,039 packages of such 

 publications, weighing 827,897 pounds, an appreciable increase over 

 last year. 



National Gallery of Art. — During the year the Gallery received 650 

 accessions, by gift, loan, or deposit. Six special exhibits were held, 

 and 15 traveling exhibitions of prints from the Rosenwald Collection 

 were circulated to other museums and galleries. Exhibitions from the 

 "Index of American Design" were given 50 bookings in 18 States, the 

 District of Columbia, and Germany. Nearly 44,000 persons attended 

 the various tours conducted by Gallery personnel, and about 11,500 

 attended the 51 auditorium lectures of Sunday afternoons. The Sun- 

 day evening concerts in the east garden court were continued. 



Library. — In all, 54,316 publications were received by the Smith- 

 sonian library during the year, and 87 new exchanges were arranged. 

 Among the gifts were several private collections of valuable material, 



