Analytical Balance
date: label: Date made
content: ca. 1935
label: date made
content: around 1935
name: label: purchased/used by
content: Marble, John Putnam
label: retailer
content: J. Russel Marble & Co.
label: maker
content: Henry Troemner
notes: label: Description
content: Troemner Analytical Balance No. 10 with aluminum beam, and wooden case with glass sides. The inscription on the ivory scale reads “MADE BY / HENRY TROEMNER / FOR / ARTHUR H. THOMAS CO. / PHILA.”
label: Description
content: Arthur H. Thomas described this, in 1921, as “a world-famous balance of a construction original with Henry Troemner, Philadelphia, on designs suggested by Mr. A. A. Blair, and for twenty-five years perhaps the most widely used high-grade analytical balance in many industrial laboratories, particularly in the iron and steel industry. From the standpoint of sensitivity, simple construction and durability, we recommend this balance for continuous and precise analytical work.”
label: Description
content: Andrew Alexander Blair (1838-1942) was a chemist who worked for the U.S. Commission to test iron, steel, and other metals at the Watertown Arsenal, and for the U.S. Geological Survey.
label: Description
content: Ref: “Andrew A. Blair. Analytic Chemist Dies In His 84th Year,” New York Times (Jan. 27, 1932), p. 24.
label: Description
content: A paper label, under the base at front, reads “J. RUSSEL MARBLE & CO., 18-20 Poster, St. WORCESTER, MASS.” This label is also marked: “This balance is the personal property of JOHN PUTNAM MARBLE purchased 11/5/1935.” John Putnam Marble (1897-1955) was a chemist with a Ph.D. from Harvard University, who worked with the Committee for the Determination of Geologic Time, of the National Research Council. He was also an Associate in Mineralogy of the Smithsonian Institution.
label: Description
content: Ref: Arthur H. Thomas, <i>Laboratory Apparatus and Reagents</i> (Philadelphia, 1921), p. 50.
label: Location
content: Currently not on view
place: label: place made
content: United States: Pennsylvania, Philadelphia
topic: label: Subject
content: Weights & Measures
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Bequest of Dr. John Putnam Marble
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.316648
label: catalog number
content: 316648
label: accession number
content: 206607
objectType: label: Object Name
content: Analytical Balance
label: Object Type
content: Balances
physicalDescription: label: Measurements
content: each pan: 77 mm; x 3 1/16 in
label: Measurements
content: beam: 178 mm; 7 in
label: Measurements
content: overall: 50 cm x 49.3 cm x 31.5 cm; 19 11/16 in x 19 7/16 in x 12 3/8 in