Spectrograph

Spectrograph

<< >>
Usage conditions apply
Downloads
Description
This is a Littrow-type spectrograph with a quartz lens, a quartz prism, a photographic plate, and an inscription reading “Adam Hilger LTD. London.” Hilger introduced the form in 1908, and was soon selling examples to academic and industrial laboratories around the world. The American Brass Company, then the largest brass manufacturer in the United States, bought this example in 1913, and used it “to check the purity of the copper and zinc that went into their products, and to search out the reasons for variations in their properties that could not be accounted for by ordinary chemical analysis.”
Ref. Adam Hilger Ltd., Spectrographs (London, 1912), p. E2.
Charles C. Nitchie, “The Earliest Industrial Spectrographic Installation in the United States,” Applied Spectroscopy 5 (1951): 3-4.
W. H. Bassett and C. H. Davis, “Spectrum Analysis in an Industrial Laboratory,” Transactions of the Institution of Mining and Metallurgical Engineers 68 (1923): 662-669.
Object Name
spectrograph
date made
1913
maker
Adam Hilger, Ltd.
place made
United Kingdom: England, London
Measurements
overall: 7 in x 7 1/2 in x 79 in; 17.78 cm x 19.05 cm x 200.66 cm
ID Number
PH.322453
catalog number
322453
accession number
248008
Credit Line
Anaconda American Brass Company
subject
Science & Scientific Instruments
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Comments

Add a comment about this object