REPORT OF THE SECRETARY té 
is under the direction of Dr. Edward Wigglesworth, were rebroad- 
cast in Washington. A number of talks on astronomy, given from 
Station WEEI, Boston, under the auspices of the Harvard College 
Observatory, were also rebroadcast from Washington as part of the 
Smithsonian series, through the courtesy of Prof. Harlow Shapley 
and Station WEEI. 
A second series of talks of a somewhat different nature, entitled 
“Radio Nature Talks from the National Zoological Park,” was 
inaugurated during the year. This series is described in detail in 
the report on the National Zoological Park, which forms Appendix 
6 of this report. The direction of both of these series under the 
auspices of the Institution was in the hands of Mr. Austin H. Clark, 
curator of echinoderms in the National Museum. 
A list of the talks in the regular Smithsonian series follows: 
August 5, 1925: Butterflies. Mr. Austin H. Clark, National Museum (given 
from Station WBZ). 
October 1, 1925: Flies. Dr. J. M. Aldrich, National Museum. 
October 8, 1925. Our Lighthouse Service. Hon. George R. Putnam, Director 
of Lighthouses. 
October 15, 1925: Plant Lice and Scale Insects. Mr. Harold Morrison, Bureau 
of Hntomology. 
October 22, 1925: Earthquakes, Commander N. H. Heck, Coast and Geodetic 
Survey. 
October 29, 1925: Our Alaskan Fisheries. Hon. Henry O’Malley, Commis- 
sioner of Fisheries. 
November 5, 1925: The Work of the Bureau of Standards. Dr. George K. 
Burgess, director, Bureau of Standards. 
November 12, 1925: Turtles. Miss Doris M. Cochran, National Museum. 
November 19, 1925: Studying the Sun in Chile. Mr. L. B. Aldrich, Astro- 
physical Observatory. 
November 26, 1925: Comets. Prof. Edward 8. King, Harvard College Observa- 
tory (read by Mr. Austin H. Clark). 
December 3, 1925: The Ups and Downs of the Earth. Maj. William Bowie, 
Coast and Geodetic Survey. 
December 10, 1925: The Story of Time Keeping. Mr. Carl W. Mitman, 
National Museum. 
December 17, 1925: The Numbers, Motions, and Sizes of the Stars. Dr. 
William J. Luyten, Harvard College Observatory (read by Mr. Austin H. 
Clark). 
December 24, 1925: How the Insects Spend the Winter. Mr. S. A. Rohwer, 
Bureau of Entomology. 
January 7, 1926: How Men Learned to Fly. Mr. Paul E. Garber, National 
Museum. 
January 14, 1926: New Stars and Variables. Dr. Annie J. Cannon, Harvard 
College Observatory (read by Mr. Austin H. Clark). 
January 21, 1926: The American Sword. Mr. T. T. Belote, National Museum. 
January 28, 1926: Measuring the Universe. Prof. Harlow Shapley, director, 
Harvard College Observatory (read by Mr. William M. Sweets). 
February 11, 1926: Archeology in the Southern States. Mr. Henry B. Collins, 
jr., National Museum. 
