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vol. of the memoirs of the American acad. of arts and sciences, Camb. Hilliard & M. 1820. 18 pp. Sm. 4°. On the meteor which passed over Wilmington, Del., Nove 21, 1819; Occultation of Spica, by the moon; On a mistake in the calculation of Poisson relative to the distribution of electrical matter etc. ; Elements of the comet of 1819.
- Astronomy.