6 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1946 
and for this first sheet, which will have a place of honor in our phila- 
telic collections.” 
Centennial publications——To provide a permanent record of the 
Institution’s hundredth anniversary, as well as to call public atten- 
tion to the event, there was issued on August 10, 1946, the anniver- 
sary date, a book entitled “The First Hundred Years of the Smith- 
sonian Institution,” by Webster P. True, chief of the Institution’s 
editorial division. In it are reviewed briefly the origin and develop- 
ment of the Institution itself and of the several bureaus that have 
grown up around the parent organization, its extensive work in the 
fields of research, exploration, and publication, and its function in 
times of war. Special attention was given to typographic design and 
to the illustrations, with the result that many commendatory letters 
have come from recipients of the book. 
I also authorized the preparation of a complete list, with classified 
index, of all publications of the National Museum from 1875, the year 
in which the Museum began publication of a separate series, to 1946, 
the list to appear as a feature of the Centennial observance. The proj- 
ect. was turned over to the editorial division, and the difficult task of 
preparing the classified index was undertaken by Miss Gladys O. 
Visel, of that division. It is hoped to issue the list before the close 
of the calendar year 1946. Copies will be placed in libraries and 
universities throughout the world, and the availability of such an 
index will greatly increase the usefulness of the Museum’s publications 
to scientists and students. 
Smithsonian Institution Centennial issue of “Science.”—The journal 
“Science,” official organ of the American Association for the Ad- 
vancement of Science, very generously devoted the entire issue of 
August 9, 1946, to the Smithsonian Centennial. The editor of Science, 
Dr. Willard L. Valentine, named as guest editor for the issue Paul H. 
Oehser, assistant chief of the Smithsonian’s editorial division. After 
an introductory statement by the Secretary outlining the developments 
and activities of the Institution, special articles by Smithsonian staff 
members review the various phases of its work, including astro- 
physics, anthropology, geology, biology, and engineering, as well as 
its publications, the International Exchange Service, its library, and 
the Smithsonian Deposit in the Library of Congress. 
Centennial convocation.—On October 28, 1946, a Smithsonian con- 
vocation was held to mark in a more formal manner the Institution’s 
one-hundredth anniversary. The event was timed to coincide with 
the fall meetings of the National Academy of Sciences and of the 
American Philosophical Society, the members of which, together with 
some 40 distinguished foreign scientists who attended their meetings, 
were the guests of the Institution for an evening affair in the Natural 
