96 



REPORT OF NATIONAL MUSEUM, 1924 



upon to furnish photographs of material together with data per- 

 taining thereto. The largest gift of this sort made during the year 

 was to Miss Gertrude A. Gillmore, of the Children's Museum of the 

 Detroit Institute of Arts, Detroit, Mich. 



NUMBER OF SPECIMENS IN THE COLLECTIONS 



Mechan- 

 ical 

 tech- 

 nology 



Mineral 

 tech- 

 nology 



Number of specimens on hand June 30, 1923 



Number of specimens received during the year 



Number of specimens transferred from other divisions. 



6,678 

 429 

 21 



Number of specimens transferred to other divisions or returned to donors: 



Morse biographical objects 46 



De Haviland-4 airplane 1 



Models of chemical industries 



Net total number of specimens in collections June 30, 1924 



7,128 



4,018 



11 



4,007 



