Lectionary Calendar
Sunday, December 22nd, 2024
the Fourth Week of Advent
the Fourth Week of Advent
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Bible Encyclopedias
Speculum
1911 Encyclopedia Britannica
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the Latin word for a mirror, employed more particularly for a metallic mirror used in a reflecting telescope. In early instruments metallic mirrors, made from an alloy of copper and tin, with the addition of a little arsenic or other metals to increase the whiteness, were customarily employed, but they have now been displaced by the more converiient silveron-glass mirror (see Telescope). Various forms of specula are used in surgery for examining internal organs.
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These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Speculum'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/s/speculum.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Speculum'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/s/speculum.html. 1910.
