Other Activities 
LECTURES 
In 1931 the Institution received a bequest from James Arthur, 
of New York City, a part of the income from which was to be used 
to endow an annual lecture on some aspect of the sun. The 25th 
Arthur lecture was delivered in the auditorium of the Natural His- 
tory Building on the evening of October 23, 1958, by Dr. Leo Goldberg, 
director of the Observatory of the University of Michigan. This 
illustrated lecture, on the subject “Astronomy from Artificial Satel- 
lites,” will be published in full in the general appendix of the Annual 
Report of the Board of Regents of the Smithsonian Institution for 
1959. 
Dr. Homer A. Thompson, professor of classical archeology, Insti- 
tute for Advanced Study, Princeton, N.J., delivered a lecture on 
“Athenian Twilight” in the auditorium of the Natural History Build- 
ing on the evening of December 2, 1958. This was sponsored jointly 
by the Smithsonian Institution and the Archaeological Institute of 
America. 
Under the joint sponsorship of the Smithsonian Institution, the 
Anthropological Society of Washington, and the Netherland-America 
Foundation, Dr. J. Victor de Bruyn, adviser to the Netherlands Gov- 
ernment on New Guinea affairs, lectured on “New Guinea Papuans 
Today and Tomorrow,” on March 4, 1959, in the Natural History 
Building auditorium. 
Grover Loening, aeronautical engineer and manufacturer and mem- 
ber of the advisory board of the National Air Museum, presented a 
lecture on “Lessons from the History of Flight” in the auditorium 
of the Natural History Building on May 18, 1959. This lecture is 
to be published in the general appendix of the Annual Report of the 
Board of Regents of the Smithsonian Institution for 1959. 
H. Alan Lloyd, F.S.A., F.B.H.1., M.B.E., gave a lecture on “Pre- 
Renaissance Clocks and Their Influence” on May 20, 1959, in the 
auditorium of the Freer Gallery of Art, under the joint sponsorship 
of the Smithsonian Institution and the National Association of Watch 
and Clock Collectors. 
Several lectures were also sponsored by the Freer Gallery of Art 
and the National Gallery of Art. These are listed in the reports of 
these bureaus. 
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