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Mary W. Whitney studied with Maria Mitchell at Vassar and, in 1887, succeeded her mentor as professor of astronomy. Whitney's major research project involved tracing the light curves of variable stars. Some of this work was done with this wedge photometer acquired in 1903.
Ref: Mary W. Whitney and Carline E. Furness, “Observations of Variable Stars Made During the Years 1901-12,” Publications of the Vassar College Observatory 3 (1913).
Caroline E. Furness, An Introduction to the Study of Variable Stars (Boston, 1915), pp. 127-128.
“Reports of Observatories,” Publications of the Astronomical Society of the Pacific 16 (1904): 104-116, on 116.
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overall: 1 7/8 in x 5 3/8 in x 7 7/8 in; 4.7625 cm x 13.6525 cm x 20.0025 cm
overall: 1 11/16 in x 5 3/8 in x 7 5/8 in; 4.28625 cm x 13.6525 cm x 19.3675 cm
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National Museum of American History
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