Photo-Recording Magnetometer
name: label: maker
content: Adie, Patrick
notes: label: Description
content: This instrument was designed by J. Welsh at the Kew Observatory, made by Patrick Adie in London, and introduced in 1859. The U.S. Coast and Geodetic Survey acquired it in 1861 but, owing to the Civil War and subsequent lack of funds, put it in storage. In 1882, in cooperation with the International Polar Commission, the Survey installed this instrument in a magnetic observatory at Los Angeles, California. The instrument was moved to San Antonio, Texas, in 1890, and later to Cheltenham, Maryland.
label: Description
content: Ref: Balfour Stewart, "Account of the Construction of the Self-Recording Magnetographs at Present in Operation at the Kew Observatory of the British Association," <i>Report of the British Association for the Advancement of Science</i> (1859): 200-228.
label: Description
content: C. A. Schott, "Results of the Observations Made at the U.S. Coast and Geodetic Survey Magnetic Observatory, at Los Angeles, California," <i>Report of the Superintendent of the United States Coast and Geodetic Survey for the Year 1890</i>, Appendix No. 8, p. 244.
label: Description
content: C. A. Schott, "Results of the Observations Recorded at the U.S. Coast and Geodetic Survey Magnetic Observatory, at Los Angeles, California," <i>Report of the Superintendent of the United States Coast and Geodetic Survey for the Year 1890</i>, Appendix No. 9, p. 201.
place: label: place made
content: United Kingdom: England, London
topic: label: Subject
content: Science & Scientific Instruments
label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
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content: Science & Mathematics
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content: Measuring & Mapping
creditLine: label: Credit Line
content: U.S. Department of Commerce, Coast & Geodetic Survey
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.316523
label: accession number
content: 225703
label: catalog number
content: 316523
objectType: label: Object Name
content: photo-recording magnetometer
physicalDescription: label: Physical Description
content: metal (overall material)