32 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1946 
The distribution of volumes and separates to libraries and other 
institutions and to individuals aggregated 32,887 copies. 
Special exhibits Eleven special exhibits were held during the year 
in the foyer and adjacent space of the Natural History Building, 
under the auspices of various educational, scientific, recreational, and 
Government groups. In addition, the department of engineering and 
industries arranged 24 special displays—12 in graphic arts and 12 in 
photography. 
CHANGES IN ORGANIZATION AND STAFF 
The end of the war, and the ensuing order of the President directing 
the Civil Service Commission to resume operations under the civil- 
service rules, resulted in a considerable number of personnel changes, 
especially during the transitional period from war-service to proba- 
tional appointments. During the year several reemployed annuitants, 
who, with long experience and special qualifications, had remained 
in active service because of the wartime manpower situation, were 
retired. 
In the department of anthropology, John C. Ewers was appointed 
associate curator in the division of ethnology on June 3, 1946. Dr. 
Marshall T. Newman resumed his duties of associate curator in the 
division of physical anthropology on January 7, 1946, after his release 
from active military service. 
Dr. William R. Maxon, curator, division of plants, retired on May 
31, 1946, and was succeeded by Ellsworth P. Killip. On April 30, 
1946, Dr. Paul Bartsch, curator, division of mollusks, retired. Other 
changes in the department of biology were the reappointment, after 
a wartime furlough to private industry, of Dr. Richard E. Black- 
welder, associate curator, division of insects, on November 13, 1945. 
The department lost by resignation the services of Mrs. Marie P. Fish, 
scientific aid in the division of fishes, and Mrs. Mildred S. Wilson, 
assistant curator, division of marine invertebrates, on May 15, 1946, 
and June 14, 1946, respectively. 
The vacancy in the division of vertebrate paleontology caused by 
the death of Charles W. Gilmore, curator, was filled by the appoint- 
ment of Dr. Charles L. Gazin on January 21, 1946, and Arlton C. 
Murray was advanced to scientific aid on March 11, 1946. An ad- 
dition to the staff of the division of invertebrate paleontology and 
paleobotany as associate curator was Dr. Alfred R. Loeblich, Jr., on 
May 31, 1946. 
Having been released from active military service, Frank A. Taylor, 
curator, division of engineering, returned to his duties in the Museum 
on March 4, 1946. The department of engineering and industries, at 
