Maximum and Minimum Soil Thermometer


Charles F. Marvin and Milton Whitney, both of the U.S. Weather Bureau, introduced this type of Combined Maximum and Minimum Soil Thermometer in 1893. This example has a wood and brass frame. A brass plate on the frame is marked "H. J. GREEN B'KLYN N.Y." and "No. 8 U.S. WEATHER BUREAU" and graduated every 5 degrees Fahrenheit from -20 to +170. The glass thermometer inside the frame is filled with mercury and alcohol. The back of the stem is milk glass. The clear front is marked "U.S. 8" and graduated every degree Fahrenheit from -20 to +180. The Weather Bureau transferred it to the Smithsonian in 1954.

Ref: C. F. Marvin and M. Whitney, "Instructions for Use of Combined Maximum and Minimum Soil Thermometer," U.S. Weather Bureau Circular G (1894).

Date Made: after 1890

Maker: H. J. Green

Location: Currently not on view

Place Made: United States: New York, Brooklyn

Subject: U.S. Weather Bureau


See more items in: Medicine and Science: Physical Sciences, Thermometers and Hygrometers, Agriculture, Measuring & Mapping


Exhibition Location:

Credit Line: U.S. Weather Bureau

Data Source: National Museum of American History

Id Number: PH.314540Catalog Number: 314540Accession Number: 204612

Object Name: soil thermometerthermometer

Measurements: overall: 23 7/16 in x 1 1/2 in; 59.53125 cm x 3.81 cm


Record Id: nmah_1289346

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