CONTENTS 



Page 



List of officials xi 



Outstanding events 1 



Summary of the year's activities 2 



The estabhshment 4 



The Board of Regents 5 



Finances 6 



Matters of general interest 6 



Johnson-Smithsonian Deep-Sea Expedition 6 



Researches in European archives 6 



Walter Rathbone Bacon traveling scholarship 8 



Third Arthur Lecture 8 



Bequests 8 



Explorations and field work 9 



Publications 10 



Library 10 



Appendix 1. Report on the United States National Museum 11 



2. Report on the National Gallery of Art 19 



3. Report on the Freer Gallery of Art 25 



4. Report on the Bureau of American Ethnology 29 



5. Report on the International Exchange Service 37 



6. Report on the National Zoological Park 42 



7. Report on the Astrophysical Observatory 51 



8. Report on the Division of Radiation and Organisms 53 



9. Report on the library ^ 55 



1 0. Report on publications 65 



Report of the executive committee of the Board of Regents 71 



GENERAL APPENDIX 



The new world-picture of modern physics, by Sir James H. Jeans 81 



The markings and rotation of Mercury, by E. M. Antoniadi 99 



British Polar Year Expedition to Fort Rae, Northwest Canada, 1932-33, 



by J. M. Stagg 107 



Protium-deuterium-tritium, the hydrogen trio, by Hugh S. Taylor 119 



Some chemical aspects of life, by Sir Frederick Gowland Hopkins 129 



Commercial extraction of bromine from sea water, by Leroy C. Stewart-- 153 



Before papyrus ... bej'ond rayon, by Gustavus J. Esselen 169 



The variety in tides, by H. A. Marmer 181 



Modern seismology, by F. J. Scrase 193 



A generation's progress in the study of evolution, by Edwin G. Conklin 205 



How the fishes learned to swim, by Anatol Heintz 223 



Curious and beautiful birds of Ceylon, by Casey A. Wood 247 



The influence of civilization on the insect fauna in cultivated areas of 



North America, by Roger C. Smith 257 



V 



