Object Details
- Bausch, Lomb, Saegmuller Co.
- Description
- The Department of Terrestrial Magnetism of the Carnegie Institution of Washington designed this theodolite magnetometer around 1904, combining the best features of the U.S. Coast and Geodetic Survey magnetometer and that used by the Magnetic Survey of India. This example is marked "BAUSCH, LOMB, SAEGMULLER CO. Rochester, N.Y. 4594" and "C.I. MAGNETOMETER NO. 4." It was made in 1907 and, with tripod, cost $620.50.
- Ref: J. A. Fleming, "Comparisons of Magnetic Observatory Standards by the Carnegie Institution of Washington," Terrestrial Magnetism 16 (1911): 61-84, on 62-63.
- Bausch, Lomb, Saegmuller Co., Astronomical, Engineering and Other Instruments of Precision (Rochester, N.Y., 1907), pp. 41-43.
- Carnegie Institution of Washington, Land Magnetic Observations, 1905-1910 (Washington, D.C., 1912).
- Location
- Currently not on view
- Credit Line
- U.S. Department of Commerce, Coast & Geodetic Survey
- 1907
- ID Number
- PH.316516
- accession number
- 225703
- catalog number
- 316516
- Object Name
- magnetometer
- Physical Description
- metal (overall material)
- wood (overall material)
- Measurements
- box: 25 in x 14 3/4 in x 8 in; 63.5 cm x 37.465 cm x 20.32 cm
- overall; box: 8 in x 25 1/8 in x 14 3/4 in; 20.32 cm x 63.8175 cm x 37.465 cm
- Place Made
- United States: New York, Rochester
- See more items in
- Medicine and Science: Physical Sciences
- Science & Mathematics
- Measuring & Mapping
- National Museum of American History
- Subject
- Science & Scientific Instruments
- Science & Scientific Instruments
- Record ID
- nmah_1029279
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a8-e422-704b-e053-15f76fa0b4fa
