Adams Papers



Mr. Williams gave a public astronomical lecture this afternoon, relating to the different theory’s of the planetary System; he gave an account of the Ptolemean, the Tychonic,1 and the Copernican. There was little more than what may be found in most astronomical books; but the lecture was entertaining and was very à propos, as it relates to the public course, and, to the book, which we have just begun to study.

Weather very comfortable.

1A via media between the Ptolemaic and Copernican systems, devised by the 16th-century Dutch astronomer Tycho Brahe, who believed that five planets rotated about the sun, which in turn circled around the immobile earth.

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