Novi commentarii Academiae scientiarum imperialis petropolitanae, Volume 8

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Typis Academiae Scientarum, 1763 - Science
 

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Page 394 - He was told that the moon has fometimes three or more concentric crowns of colours e'ncompafling one another next about her body. The more equal the globules of water or ice are to one another, the more crowns of colours will appear, and the colours will be the more lively.
Page 394 - February igth at night, he faw two fuch crowns about her. The diameter of the firft, or innermoft, was about three degrees, and that of the fecond about five degrees and a half.

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