IV. Observations of Biela's Comet, and deduced Elements, by Professor Nicolai, of Mannheim. In a letter from M. Olbers to Sir John Herschel. Communicated by Sir J. Herschel | Zendy

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IV. Observations of Biela's Comet, and deduced Elements, by Professor Nicolai, of Mannheim. In a letter from M. Olbers to Sir John Herschel. Communicated by Sir J. Herschel

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