Spectroscope
date: label: date made
content: early 1860s
name: label: maker
content: Duboscq, Jules
notes: label: Description
content: Jules Duboscq began making spectroscopes soon after Robert Bunsen and Gustav Kirchhoff announced their pioneering observations in this field, and by 1863 he could boast of having supplied instruments of this sort to numerous chemical laboratories and cabinets of physics. In this example, used at the U.S. Military Academy, the medium arm holds the slit facing the light source, the short arm holds a linear scale, the long arm holds the viewing telescope, and the central platform holds the prism that dispersed the light into a spectrum. The inscription reads “J. Duboscq / à Paris / No. 303.”
label: Description
content: Ref: J. Duboscq, <i>Catalogue Raisonés des Spectroscopes</i> (Paris, 1870), p. 5.
label: Description
content: Maison Jules Duboscq, <i>Historique & Catalogue de tous les Instruments d’Optique Supérieure Appliqués aux Sciences et à l’Industrie</i> (Paris, 1885), p. 52.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: United States Military Academy
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.315431
label: catalog number
content: 315431
label: accession number
content: 217544
objectType: label: Object Name
content: spectroscope
physicalDescription: label: Measurements
content: overall: 14 in; 35.56 cm
label: Measurements
content: overall: 14 3/8 in x 11 3/8 in x 16 1/2 in; 36.5125 cm x 28.8925 cm x 41.91 cm