Results for "Smithsonian Institution. Environmental Sciences Program"

1. 

   Betsy Heck Demonstrating Physignotrace

   • Date: c. 1986
   • Creator: Unknown
   • Creator: Unknown

2.  
3. 

   Henry Bascom Collins, Jr

   • Date: 1962
   • Creator: Unknown
   • Creator: Unknown

4.  
5. 

   G. Arthur and Josephine Cooper

   • Date: 1965
   • Creator: Unknown
   • Creator: Unknown

6.  
7. 

   Portrait of William Henry Holmes

   • Date: 1931
   • Creator: Unknown
   • Creator: Unknown

8.  
9. 

   Sylvester Rosa Koehler, 1837-1900

   • Date: c. 1890s
   • Creator: Unknown
   • Creator: Unknown

10.  
11. 

    G. Arthur Cooper Portrait Presentation

    • Date: 1965
    • Creator: Unknown
    • Creator: Unknown

12.  
13. 

    G. Arthur Cooper and Carl Owen Dunbar

    • Date: 1965
    • Creator: Unknown
    • Creator: Unknown

14.  

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