
Photograph of the instruments used by the British expedition when observing the 1919 total solar eclipse in Brazil.
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1892
1751-1800
1714-1722
1909
1874
1830-1840
1876
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1815-1850
1771
1921
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1928
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1929
1760
1876
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1931
1928
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1774-1793
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