REPORT OF NATIONAL MUSEUM, 1921. 27 
etc., on account of the citrus black fly. On May 16 and 17 the 
board had the auditorium for an important conference of person’ in- 
terested in the cotton industry with reference to damage threatened 
by the pink boll worm. 
The Forest Service had the auditorium on four forenoons—on 
January 25 and February 16, for general meetings of the employees 
of the service, for showing lantern slides; on March 25, for a meet- 
ing of employees in connection with official work; and on June 10, 
for a meeting of employees to dedicate a memorial tablet in memory 
of the 19 employees of the Forest Service who lost their lives in the 
World War, the presentation being made by Mr. Herbert A. Smith, 
and the address of acceptance by Lieut. Col. William B. Greeley, 
Forester and Chief of the Forest Service. Music was furnished by 
the band of the Third United States Cavalry from Fort Myer. This 
Italian renaissance tablet of Sienna marble, following closely the 
style of certain old tablets in Italian cathedrals, is believed to be 
the only work of its kind in America. 
The Bureau of Plant Industry showed motion-picture films to the 
scientific staff of the bureau in the auditorium on the afternoon of 
November 18, and held its phytopathological seminar in room 42-43 
on the afternoon of March 10. 
States Relations Service used the auditorium on three occasions, 
as follows: On the morning of November 17 and on the afternoon 
of April 13, for showing motion and stereopticon pictures relating to 
its activities, to the employees of the service, and on the forenoon of 
May 28, for an illustrated lecture by Dr. B. Sjollema, of the Veteri- 
nary University of Utrecht, the Netherlands, on some of the unique 
features of the agriculture of his country. The Potomac Garden 
Club, cooperating with the United States Department of Agricul- 
ture, held its annual meeting there on the evening of January 17. 
The members of the staff of the Bureau of Markets were called to- 
gether in the auditorium on the afternoon of September 24, and an 
all-day conference of United States game wardens, under the au- 
spices of the Biological Survey, occupied room 42-43 on January 6. 
Twice was the auditorium at the disposal of the Army Medical 
School—on the afternoon of November 17, 1920, for a lecture by 
Dr. Hideyo Noguchi, of the Rockefeller Institute of Medical Re- 
search, delivered before the student officers of the school and members 
of the Medical Corps of the Army on duty in Washington, and on the 
afternoon of May 26, for the closing exercises of the 1920-21 session 
of the school. 
On April 21 Mr. D. F. Garland, on behalf of The National Cash 
Register Co., demonstrated welfare work to a group of employees 
of the Post Office Department. Other governmental agencies making 
