Lummer-Gehrcke Mount
date: label: date made
content: 1914-1926
name: label: maker
content: Adam Hilger, Ltd.
notes: label: Description
content: This mount for a Lummer-Gehrcke parallel plate came with the Adam Hilger, Ltd., Constant Deviation Spectrometer in the collection. The inscriptions on one side read “ADAM HILGER LTD / LONDON, ENGLAND” and “THICKNESS 4.70 M/M” and “MELTING 743.” Those on the other side read “uD=1.5163” and “DISPERSION / C-D = .00254 D-F=.00596.” The form was designed by two German physicists, Otto Lummer and Ernst Gehrcke, and introduced in 1903.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Bowdoin College
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1998.0007.03
label: catalog number
content: 1998.0007.03
label: accession number
content: 1998.0007
objectType: label: Object Name
content: spectrometer accessory
physicalDescription: label: Measurements
content: overall: 2 1/8 in x 2 1/8 in x 5 5/16 in; 5.3975 cm x 5.3975 cm x 13.49375 cm