Spectroscope

Description
This is a simple three-armed brass spectroscope with one glass prism, on a black iron tri-leg base. It also has a black iron tube to provide gas a flame. The “P. Desaga / Heidelberg / No. 661” inscription on the eye tube refers to Peter Desaga, the University of Heidelberg instrument maker who, in the late 1850s, made the instrument that Robert Bunsen and Gustav Kirchhoff used for their pioneering work in spectroscopy.
This example resembles the instrument depicted in Henry Draper, “The Spectroscope and its Revelations,” The Galaxy (June 15, 1866): 303-319; reprinted in Scientific American (July 7, 1866): 17-18.
Location
Currently not on view
Object Name
spectroscope
date made
1860s
maker
Desaga, Peter
Measurements
overall: 10 in; 25.4 cm
place made
Deutschland: Baden-Württemberg, Heidelberg
ID Number
PH*333970
catalog number
333970
accession number
304826
subject
Science & Scientific Instruments
Optics
Science & Mathematics
See more items in
Medicine and Science: Physical Sciences
Optics
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
John William Christopher Draper and James Christopher Draper

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