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minimum thermometer
minimum thermometer

minimum thermometer

Date1890-1910
Inventory Number1998-1-1255
ClassificationThermometer
Subject
    Maker Henry J. Green fl. 1885 - 1910
    User Oak Ridge Station 1931 - 2005
    User George R. Agassiz Station, Harvard 1951 - 1982
    User Harvard College Observatory founded 1839
    Cultural Region
      Place of Origin
        Place of Use
          Dimensions30.5 x 2.2 x 1.5 cm (12 x 7/8 x 9/16 in.)
          Material
            DescriptionA thermometer consisting of a thin glass tube with capillary and a spherical bulb at the bottom, filled with a clear liquid. It is attached to a metal plate with a scale from -10 to 100 degrees (most likely Fahrenheit). Inside the thermometer's capillary is a small, black pointer with its length encompassing about 8 degrees of the scale.
            Signedmarked on plate: No. 14899 HENRY J. GREEN B'KLYN. N.Y.
            FunctionThis is a thermometer that registers the minimum temperature it has been exposed to in an interval of time. The clear liquid inside the thermometer expands and contracts with the ambient temperature, while the small pointer inside the capillary can only be moved by the liquid in the direction of decreasing temperature. One needs to reset it before its use by shaking it up the scale or with a magnet if is made of the appropriate material.
            ProvenanceTransferred to CHSI, From the Agassiz Station, Harvard University Observatory in Harvard, MA.
            thermometer, probably minimum
            thermometer, probably minimum
            Henry J. Green
            Date: 1885-1910
            Object number: 1998-1-1280
            black bulb thermometer
            black bulb thermometer
            Henry J. Green
            Date: 1890-1910
            Object number: 1998-1-1291
            black bulb thermometer
            black bulb thermometer
            Henry J. Green
            Date: circa 1900
            Object number: 1998-1-1251
            minimum thermometer
            minimum thermometer
            Henry J. Green
            Date: 1890-1910
            Accessories: cardboard box
            Object number: 1998-1-1271b
            pair of maximum and minimum thermometers
            pair of maximum and minimum thermometers
            Henry J. Green
            Date: circa 1920
            Object number: DW0632
            meteorological thermometer
            meteorological thermometer
            Henry J. Green
            Date: 1885-1910
            Object number: DW0631
            minimum thermometer on steel plate
            minimum thermometer on steel plate
            Henry J. Green
            Date: 1885-1910
            Object number: 1998-1-1278
            two thermometers in wooden case
            two thermometers in wooden case
            Henry J. Green
            Date: 1890-1910
            Object number: 1998-1-0621
            black bulb thermometer
            black bulb thermometer
            Henry J. Green
            Date: 1890-1910
            Object number: 1998-1-1261
            black bulb thermometer
            black bulb thermometer
            Henry J. Green
            Date: 1890-1910
            Object number: 1998-1-1250
            maximum thermometer
            maximum thermometer
            Henry J. Green
            Date: 1890-1910
            Accessories: cardboard box
            Object number: 1998-1-1271a
            meteorological thermometer
            meteorological thermometer
            Henry J. Green
            Date: 1890-1910
            Object number: 1998-1-1254