REPORT OF THE ACTING SECRETARY. 89 



graphic portraits of the Regents, the Chancellors, and the Secretaries of the 

 Institution ; papers and medals relating to the Hodgkins fund ; a complete 

 set of the publications of the Institution ; an enlarged photograph of the 

 Smithsonian seal, and pictures of the Smithsonian and Museum buildings. 



INTERNATIONAL EXCHANGES. 



The International Exchange Service exhibited a statistical chart showing its 

 operations from its founding up to 1904 and photographs of its offices, all of 

 which objects were hung on the western portion of north wall, 



ASTROPHYSICAL OBSEEVATOEY. 



The Observatory showed several large charts illustrating the results of its 

 investigations upon solar radiation, the most conspicuous of which was that 

 of the infra-red spectrum. All were placed on the western portion of the north 

 wall, together with transparencies representing solar eclipses, sun spots, etc. 



NATIONAL ZOOLOGICAL PAEK. 



Just to the west of the north door were shown enlarged photographic views 

 of some of the animals living in the park and of the animal houses and 

 paddocks, together with a model of the park, and maps showing details of the 

 park and its location in the city of Washington. 



BUEEAU OF AMEEICAN ETHNOLOGY. 



This exhibit, representing the researches of one of the ethnologists of the 

 Bureau, consisted of a series of 55 models and 2 originals of shields and 8 

 models of tepees of the Kiowa Indians, illustrative of many of their beliefs 

 and customs. This exhibit was placed in the west section of the wall case. 



UNITED STATES NATIONAL MUSEUM. 



I. Department of Anthropology. 



The exhibit of this department of the Museum was installed in the west sec- 

 tion of the Smithsonian space. It comprised reproductions, on a reduced scale, 

 of five of the temples, or palaces, built by the Indians of the ancient civiliza- 

 tions of Mexico and Yucatan. The structures shown were : " Temple of the 

 Cross " at Palenque, the " Castle " at Chitzen-Itza, the " Governor's Palace " at 

 Uxmal, the " Temple of Xochicalco," and a temple at Mitla. Photographs, 

 plans, and diagrams of these and other ruins were shown separately, as well as 

 some full-size details of the temples. 



II. Department of Geology. 



This exhibit, which was placed in the central portion of the Smithsonian 

 space, embraced : 



1. A systematic collection of minerals, represented by unusually large speci- 

 mens. 



2. An exhibit of meteorites, which comprised, (a) plaster casts of three 

 meteorites collected by Commander Peary, U. S. Navy, in north Greenland, the 

 largest one being the greatest mass ever known to have fallen from the sky; 



