- Description:
- United States penny as a scale. Tortuguero National Park, Costa Rica.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1985-02-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Stalactites of Calcium and Sodium chloride
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1970-07-25
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- "Giant's Castle"
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1940-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion sampler.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion sampling device.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion sampling device.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Device for sampling soil eroded from corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Device for sampling soil eroded from corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Device for measuring soil eroded from a corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Device for measuring soil eroded from a corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion sampling device.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Rotating sampler for measuring soil eroded from a corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Rotating sampler for measuring soil eroded from a corn field.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion samples.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- View down into pit containing soil erosion sampling device.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-09-13
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Taken with 55 milimeter lens focused at 9 and 1/2 inches, 24.1 cm, for use as a scale with photos taken at same focal plane.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1976-08-12
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- Taken with 55 milimeter lens focused at 9 and 1/2 inches, 24.1 cm, for use as a scale with photos taken at same focal plane.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1976-08-12
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- 5500 feet. Frost patterned soil. Exclosure ungrazed since 1927. Penny used as a scale.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-07-07
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- 5500 feet. United States Sheep Station. Exclosure ungrazed since 1927.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-07-07
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
- Description:
- 5500 feet. Frost patterned soil. Exclosure ungrazed since 1927. Penny used as a scale in image.
- Creator:
- Lawrence, Donald, 1911-1996
- Created:
- 1957-07-07
- Contributed By:
- University of Minnesota Libraries, University Archives.
- Last Updated:
- 2018-07-23
