Lambrecht's Polymeter

Lambrecht's Polymeter

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Description
Lambrecht’s Polymeter is a multi-purpose meteorological instrument consisting of a mercury thermometer for temperature (missing in this example) and a hair hygrometer for humidity. The inscriptions on the face of this example read "LAMBRECHT'S POLYMETER" and "JULIEN P. FRIEZ / Meteorological Instruments and Apparatus BALTIMORE (Md.) U.S.A."
Wilhelm Lambrecht (1834-1904), a mechanical, optical and meteorological instrument maker in Göttingen, designed this type of hair hygrometer around 1880. The firm remains in business, advertising as "The Weather Specialists Since 1859."
Julien P. Friez opened a workshop in Baltimore in 1890; he took his elder son into partnership in 1913 and began trading as J.P. Friez & Son. In 1895, he announced in the American Meteorological Journal that he was “Special American Agent for Lambrecht’s famous Polymeter, the best single instrument ever invented for making FROST AND WEATHER FORECASTS.”
Ref: “The Polymeter” in Julien P. Friez, Illustrated Catalogue of Meteorological Instruments and Apparatus (Baltimore, 1893), pp. 35-37.
Location
Currently not on view
Object Name
polymeter
dew point apparatus
date made
1890-1913
maker
Lambrecht, Wilhelm
Friez, Julien P.
place made
Germany: Lower Saxony, Göttingen
United States: Maryland, Baltimore
Measurements
overall: 9 7/16 in x 3 1/8 in x 1 in; 23.97125 cm x 7.9375 cm x 2.54 cm
ID Number
PH.314562
accession number
204612
catalog number
314562
Credit Line
U.S. Weather Bureau
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Data Source
National Museum of American History
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