Looseleaf miscellaneous observations and equations, principally on star observations and reductions. The papers also include a piece on water clocks; a star catalogue for 1766-1802; extensive comparisons with 'Rømer's Triduum' (the list of his meridian transit observations at Copenhagen Observatory, 20-23 October 1706); the error of geocentric longitude and latitude of the 1807 comet; differences of the Sun's observed right ascension from that in the 'Nautical Almanac', 1807-1808; observations of the transit of Mercury, 9 November 1802, and of Capella, 1808; Venus observed in the ascending node at Greenwich, 1738; the 1761 transit of Venus observed from Copenhagen; and the position of various places throughout the world, 1794-1797.