Paper Models of Ellipsoids, M.Schilling No. 6 & No. 7, Carton Ser. No. 1 & No. 2
date: label: date made
content: ca 1900
notes: label: Description
content: In the nineteenth and early twentieth century, students studying technical subjects often learned about the representation of surfaces by equations in courses in solid analytic geometry. Schools in Europe, the United States, and Japan sometimes purchased models to illustrate such surfaces. The firm of Martin Schilling in Leipzig published these two as part of a series of paper models (the “Carton” series) designed by Alexander Brill and first issued in 1874.
label: Description
content: The larger, greenish-white paper model of an ellipsoid (#1 in the Carton series) has the dimensions given. It has nineteen intersecting circles (three of the smallest circles are missing in this example). The lines of intersection are numbered, but there is no label. The smaller, tan model (#2 in the carton series) measures unfolded: 11.5 cm. w. x 7 cm. d. x 7 cm. h. It has twenty-nine circles (one other circle is missing). The lines of intersection and circles are numbered, but there is no label. The two models measure flat in their light green envelope: 17 cm. w. x 11.5 cm. d. x 1 cm. h. The envelope is stored in a black paper box with the other Carton models. A mark on it reads: Karton-Modelle (/) von Flachen zweiter Ordnung. (/) Nr. 1 u. 2 (/) Ellipsoide (/) Verlag von Martin Schilling in Halle a. S. Another mark on it reads: Leipzig.
label: Description
content: The stand shown in the photographs is part of MA304722.24.
label: Description
content: Compare 1985.0112.002 and 1985.0112.003.
label: Description
content: References:
label: Description
content: Ludwig Brill, <I>Catalog mathematischer Modelle. . .</I>, Darmstadt: L. Brill, 1892, p. 1, 57.
label: Description
content: M. Schilling, <I>Catalog</I>, 1911, p. 1-2, 111.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Saxony, Leipzig
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Brown University Department of Mathematics
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.304722.15
label: catalog number
content: 304722.15
label: accession number
content: 304722
objectType: label: Object Name
content: Geometric Models
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 8 cm x 10 cm x 8 cm; 3 5/32 in x 3 15/16 in x 3 5/32 in