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Updated: July 23, 2025
Olbers, and of the Comet which was expected to appear last January in its Return from the Sun. Phil. Trans., vol. xcviii. Observations of a Comet, made with a view to investigate its Magnitude, and the Nature of its Illumination. Phil. Trans., vol. xcix. Continuation of Experiments for investigating the Cause of Coloured Concentric Rings, and other Appearances of a similar Nature. Phil.
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