Microscope
date: label: date made
content: ca 1830
notes: label: Description
content: John Locke (1792-1856) was a Yale graduate who made important contributions in several scientific and technical fields. After having been named Professor of Chemistry at the Medical College of Ohio in 1835, Locke went abroad to purchase apparatus and probably acquired this microscope at that time. Mrs. F. G. Hunt gave the microscope to the National Bureau of Standards in 1943, in accordance with the desire of John Locke’s grandson, General Morris Locke. The Bureau transferred it to the Smithsonian in 1963.
label: Description
content: Like many English microscopes dating from the early decades of the nineteenth century, this one could be used as a compound monocular or a simple microscope. To that end, there is a flange at the top of the central limb with a hole at either end: one hole holds the lower end of a compound monocular; the other could hold a simple lens (now missing). The limb supports a square stage moved up and down by a rack and pinion, and a sub-stage mirror. The cylindrical pillar has an inclination joint at the top, and a circular base.
label: Description
content: Ref: James R. Fleming, “John Locke,” <i>American National Biography</i>.
label: Description
content: Adolph E. Waller, “Dr. John Locke (1792-1856), Early Ohio Scientist,” <i>Journal of the Ohio Historical Society</i> 55 (1946): 346-373.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England
topic: label: Subject
content: Science & Scientific Instruments
setName: label: See more items in
content: Medicine and Science: Medicine
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content: Microscopes
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content: Science & Mathematics
creditLine: label: Credit Line
content: Transfer from the U.S. Department of Commerce, National Bureau of Standards
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.247805.05
label: accession number
content: 247805
label: catalog number
content: M-10436
label: catalog number
content: 247805.05
objectType: label: Object Name
content: microscope
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 45.7 cm x 11 cm x 16.8 cm; 18 in x 4 5/16 in x 6 5/8 in