Graphometer

Description:

This graphometer is one of several objects from the Bureau of Education that the U. S. Department of Interior transferred to the Smithsonian Institution in 1910. Active during the period 1876-1885, the Bureau of Education had organized exhibits for national and international exhibitions, and collected educational materials from around the world for display in its museum in Washington, D.C. The graphometer is of nickel-plated brass. Its semicircle arc is graduated every 30 minutes, and read by vernier scales at either end of the alidade to single minutes. The "Ed LUTZ Paris" inscription is that of Edouard Lutz, an optical and mathematical instrument maker who worked in Paris in the second half of the 19th century.

Maker: Lutz, Edouard

Location: Currently not on view

Place Made: France: Île-de-France, Paris

See more items in: Medicine and Science: Physical Sciences, Surveying and Geodesy, Measuring & Mapping

Exhibition:

Exhibition Location:

Credit Line: The Dept. of Interior

Data Source: National Museum of American History

Id Number: PH.261271Accession Number: 51116Catalog Number: 261271

Object Name: Graphometer

Measurements: overall: 8 1/2 in; 21.59 cmneedle: 1 3/4 in; 4.445 cmoverall: 8 7/8 in x 8 1/2 in x 5 1/2 in; 22.5425 cm x 21.59 cm x 13.97 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a5-9b2c-704b-e053-15f76fa0b4fa

Record Id: nmah_748113

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