- 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
- date made
- Adam Hilger, Ltd.
- place made
- United Kingdom: England, London
- overall: 7 in x 7 1/2 in x 79 in; 17.78 cm x 19.05 cm x 200.66 cm
- ID Number
- catalog number
- accession number
- Credit Line
- Anaconda American Brass Company
- Science & Scientific Instruments
- See more items in
- Medicine and Science: Physical Sciences
- Data Source
- National Museum of American History
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.