CONTENTS 



Pago 



List of officials ix 



Outstanding events 1 



Summary of the year's activities of the branches of the Institution 2 



The establishment 8 



The Board of Regents 8 



Finances 9 



Matters of general interest 9 



Smithsonian radio program 9 



Anthropological publication in honor of John R. Swanton's fortieth 



year with the Institution 11 



Walter Rathbone Bacon traveling scholarship 12 



Smithsonian main hall exhibits 13 



Ninth Arthur lecture 13 



Witherspoon bequest 14 



Explorations and field work 15 



Publications 16 



Library 17 



Appendix 1. Report on the United States National Museum 18 



2. Report on the National Gallery of Art 31 



3. Report on the National Collection of Fine Arts 38 



4. Report on the Freer Gallery of Art 43 



5. Report on the Bureau of American Ethnology 49 



6. Report on the International Exchange Service 59 



7. Report on the National Zoological Park 70 



8. Report on the Astro physical Observatory 85 



9. Report on the Division of Radiation and Organisms 90 



10. Report on the library 95 



11. Report on publications 102 



Report of the executive committee of the Board of Regents 109 



GENERAL APPENDIX 



Solar prominences in motion, by Robert R. McMath 121 



The satellites of Jupiter, by Seth B. Nicholson 131 



Cultural values of physics, by David Dietz 139 



Nuclear fission, by Karl K. Darrow 155 



The national standards of measurement, by Lyman J. Briggs 161 



The rise of the organic chemical industry in the United States, by C. M. A. 



Stine 177 



The rubber industry, 1839-1939, by W. A. Gibbons 193 



The future of man as an inhabitant of the earth, by Kirtley F. Mather 215 



The search for oil, by G. M. Lees 231 



Perspectives in evolution, by James Ritchie, M. A., D. Sc 249 



Animal behavior, by Ernest P. Walker 271 



The national wildlife refuge program of the Fish and Wildlife Service, by 



Ira N. Gabrielson 313 



V 



