De pluviis prodigiosis speculatio physica et historica : von blutregen und andern wunderbaren unnatürlichen ungewühnlichen regen, eine trewhertzige unnd nothwendige erklerung gestellee

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Herlitz (1557-1636), a German physician and professor of mathematics at the University of Griefswald, published the first ephemerides devoted to predicting changes in the weather. He was a careful observer of the famous and controversial comet of 1618 which so interested Galileo and Kepler.