Results for "National Science Resources Center (U.S.)"
Watson M. Perrygo with Snake Specimen
- Date: 1929
- Creator: Unknown
- Creator: Unknown
Mammals in A&I South Hall
- Date: 1902
- Creator: Unknown
- Creator: Unknown
Watson M. Perrygo Working on Bird Specimen
- Date: January 19,1933
- Creator: Unknown
- Creator: Unknown
Roxie Laybourne Holding a Duck
- Date: c. 1960
- Creator: Unknown
- Creator: Unknown
Wetmore and Perrygo in El Valle, Panama
- Date: March 31, 1951
- Creator: Unknown
- Creator: Unknown
Philadelphia Centennial Mineralogy Exhibits
- Date: 1876
- Creator: Unknown
- Creator: Unknown
Wetmore and Perrygo near Chico, Panama, 1949
- Date: March 30, 1949
- Creator: Unknown
- Creator: Unknown
Engraving of The Group of Fur-seals
- Date: 1886
- Creator: Unknown
- Creator: Unknown
Alexander Wetmore, Ratibor Hartmann and Cristobal Sánchez
- Date: March 16, 1949
- Creator: Unknown
- Creator: Unknown
