Analytical Balance
date: label: date made
content: early nineteenth century
name: label: used by
content: Remsen, Ira
label: maker
content: Pollock, Allan
notes: label: Description
content: This analytical balance stands on a mahogany box that, in turn, is enclosed in a mahogany case with glass front and back. The balance is brass; the bearings are steel and agate; the pans are copper. The weights are in the drawer.
label: Description
content: The “Pollock Boston Patent” inscription on the ivory scale refers to Allan Pollock, a Bostonian who received a U.S. patent for a balance, scale and beams, in 1815. According to a brief notice in the <i>American Journal of Science</i> 6 (1823): 371, Pollock was one of several Americans "advantageously known to the public" as a "manufacturer of thermometers and of philosophical apparatus."
label: Description
content: This came from the laboratory of Ira Remsen, the first professor of chemistry at The Johns Hopkins University. Its earlier history is unknown.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
topic: label: Subject
content: Weights & Measures
setName: label: See more items in
content: Medicine and Science: Chemistry
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Johns Hopkins University Department of Chemistry
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.315866.1
label: catalog number
content: 315866.1
label: accession number
content: 221777
objectType: label: Object Name
content: balance
label: Object Type
content: Balances
physicalDescription: label: Physical Description
content: ivory (overall material)
label: Physical Description
content: brass (overall material)
label: Physical Description
content: glass (overall material)
label: Measurements
content: base: 17.9 cm x 40.7 cm x 24.5 cm; 7 1/16 in x 16 in x 9 5/8 in
label: Measurements
content: each pan: 31 mm x 212 mm; 1 1/4 in x 8 3/8 in
label: Measurements
content: cabinet: 65 cm x 10 cm x 33.4 cm; 25 9/16 in x 3 15/16 in x 13 1/8 in
label: Measurements
content: balance: 49.8 cm x 89 cm x 24.5 cm; 19 5/8 in x 35 1/16 in x 9 5/8 in
label: Measurements
content: beam: 66.5 cm; 26 3/16 in