14 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1941 



The nine previous Arthur lectures have been as follows : 



1. The Composition of the Sun, by Henry Norris Russell, professor of astronomy 



at Princeton University. January 27, 1932. 



2. Gravitation in the Solar System, by Ernest William Brown, professor of 



mathematics at Yale University. January 25, 1933. 



3. How the Sun Warms the Earth, by Charles G. Abbott, Secretary of the 



Smithsonian Institution. February 26, 1934. 



4. The Sun's Place among the Stars, by Walter S. Adams, director of the Mount 



Wilson Observatory. December 18, 1934. 



5. Sun Rays and Plant Life, by Earl S. Johnston, assistant director of the 



Division of Radiation and Organisms, Smithsonian Institution. February 

 25, 1936. 



6. Discoveries from Eclipse Expeditions, by Samuel Alfred Mitchell, director 



of the Leander McCormick Observatory, University of Virginia. February 

 9, 1937. 



7. The Sun and the Atmosphere, by Harlan True Stetson, research associate, 



Massachusetts Institute of Technology. February 24, 1938. 



8. Sun Worship, by Herbert J. Spinden, curator of American Indian Art and 



Primitive Cultures, Brooklyn Museums. February 21, 1939. 



9. Solar Prominences in Motion, by Robert R. McMath, director of the McMath- 



Hulbert Observatory of the University of Michigan. January IG, 1940. 



BEQUESTS 



Mary Vaux Walcott hequest. — Mary Vaux Walcott, widow of the 

 late Charles D. Walcott, former Secretary of the Smithsonian Insti- 

 tution, died August 22, 1940. Mrs. Walcott had for many years been 

 deeply interested in the Institution and its work, and during the years 

 1925 to 1930 her beautiful water-color sketches of North American 

 wild flowers were published in five smnptuous volumes under the 

 auspices of the Institution. During her lifetime Mrs. Walcott mani- 

 fested her interest by numerous valuable gifts, both in the form of 

 specimens and of money for specific purposes connected with Smith- 

 sonian researches. In her will she named the Institution residuary 

 legatee, the relevant portions of that document reading in part as 

 follows : 



I give, devise and bequeath all the rest, residue and remainder of my 

 estate * * * to the Smithsonian Institution * * * in memory of my 

 beloved husband, Charles D. Walcott, to be added to and form a part of the 

 Charles D. and Mary Vaux Walcott Reasearch Fund, established by my husband 

 in his lifetime, with the express stipulation, however, that the restriction as to 

 the use of the income of said fund shall not apply to the income from this devise 

 and bequest. 



At the annual meeting of the Board of Regents on January 17, 

 1941, the following resolutions were adopted : 



Resolved, That the Board of Regents of the Smithsonian Institution learns 

 with profound sorrow of the death on August 22, 1940, of Mrs. Mary Vaux 

 Walcott, widow of its late Secretary. 



