10 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1944 
A resolution was adopted providing for the appointment of com- 
mittees to handle matters connected with the proposed celebration 
in 1946 of the centenary of the founding of the Institution. 
In his special report the Secretary outlined to the regents some 
of the more important wartime activities carried on by the Institution 
and its several branches. 
FINANCES 
A statement on finances will be found in the report of the execu- 
tive committee of the Board of Regents, page 110. _ 
TWELFTH ARTHUR LECTURE 
Under the terms of the will of the late James Arthur, of New 
York, the Smithsonian Institution received in 1931 a fund, part of 
the income from which should be used for an annual lecture on some 
aspect of the science of the sun. 
The twelfth Arthur lecture was given by Secretary C. G. Abbot 
on February 29, 1944, under the title “Solar Variation and Weather.” 
The lecture will be published with illustrations in the Report of the 
Smithsonian Institution for 1944. 
The 11 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, 1982. 
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. Abbot, 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. 
. 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, di- 
rector of the Leander McCormick Observatory, University of Vir- 
ginia. February 9, 1937. 
7. The Sun and the Atmosphere, by Harlan True Stetson, research asso- 
ciate, Massachusetts Institute of Technology. February 24, 1938. 
8. Sun Worship, by Herbert J. Spinden, curator of American Indian Art 
and Primitive Culture, 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. Janu- 
ary 16, 1940. 
10. Biological Effects of Solar Radiation on Higher Animals and Man, by 
Brian O’Brien, professor of Physiological Optics, University of 
Rochester. February 25, 1941. 
11. The Sun and the Earth’s Magnetic Field, by John A. Fleming, Depart- 
ment of Terrestrial Magnetism, Carnegie Institution of Washington. 
February 26, 1942. 
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