CONTENTS 



The Smithsonian Institution 1 



The Establishment 1 



The Board of Regents 1 



Finances 2 



The Freer Art Gallery 4 



Researches and explorations — 



Geological explorations in the Rocky Mountains 5 



Mastodon from Indiana 7 



Paleontological and stratigraphic studies in the Paleozoic rocks 7 



Explorations in Siberia 8 



Collecting fossil echinoderms in the Ohio Valley 9 



Geological work in Pennsylvania and Virginia 9 



Expedition to Borneo and Celebes 10 



Explorations in China and Manchuria 10 



. Explorations in eastern Siberia 10 



Expedition to St. Thomas, Danish West Indies 11 



Cactus investigations in Brazil and Argentina 11 



Fog clearing investigations 13 



Explorations of ancient Maya cities in Guatemala and Honduras 13 



Study of nocturnal radiation 14 



Researches under Harriman trust fund 16 



Research Corporation 16 



National Research Council 16 



Langley Aerodynamical Laboratory 18 



Publications 19 



Library 21 



International Congresses and Expositions: 



Second Pan American Scientific Congress - . 22 



Nineteenth International Congress of Americanists 23 



Panama- Pacific International Exposition 24 



Panama-California Exposition at San Diego 26 



National Museum 26 



Bureau of American Ethnology 28 



International Exchanges •■ - - - 30 



National Zoological Park 30 



Astrophysical Observatory 31 



International Catalogue of Scientific Literature 32 



Necrology 33 



Appendix 1. Report on the United States National Museum 35 



2. Report on the Bureau of American Ethnology 49 



3. Report on the International Exchanges ^ - - - 73 



4. Report on the National Zoological Park 83 



5. Report on the Astrophysical Observatory 99 



6. Report on the library 104 



7. Report on the International Catalogue of Scientific Literature... 109 



8. Report on publications 112 



Plate 1. Column of Progress at Panama- Pacific Exposition 24 



III 



