Results for "Smithsonian Institution. Assistant Secretary for Science"
Science Display
- Date: c. 1930s
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Dr. Earl S. Johnston
- Date: 1936
- Creator: Unknown
- Creator: Unknown
Hayden and Others at Camp
- Date: 1878
- Creator: Savage, C. R (Charles Roscoe) 1832-1909
- Creator: Savage, C. R (Charles Roscoe) 1832-1909
Glass Test Tube In Scientific Laboratory
- Date: c.1930s
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Scientific Experiment, Division of Radiation and Organisms
- Date: c. 1930s
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Glass Test Tube Used for Scientific Experiment
- Date: c. 1930s
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Full View of Scientific Experiment, Division of Radiation and Organisms
- Date: c. 1930s
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
- Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
Roxie Laybourne and Doug Deedrick with Microscope
- Date: c. 2000
- Creator: Unknown
- Creator: Unknown
Roxie Laybourne Beside Three Open Drawers of Bird strike Remains
- Date: September 1996
- Creator: Unknown
- Creator: Unknown
Radiation Biology Lab in Rockville, Maryland
- Date: c. 1975
Roxie Laybourne Testing Materials from Aircraft Part
- Date: c. 1980s
- Creator: Unknown
- Creator: Unknown
- SI History Bibliography
In Memoriam: Roxie Collie Laybourne, 1910-2003
- Date: October 2004
- Creator: Dove, Carla J
- Creator: Dove, Carla J
