. 28°. 51'. as above: count backward 1 Sign, 6°. 29'. and its Longitude, counted from the Equinox in the middle of the Constellation of Aries, in the time of the Argonautic expedition, will be

. 22°. 22': and by the same way of arguing, the Longitude of the Lucida Pleiadum in the time of the Argonautic Expedition will be

. 19°. 26'. 8": and the Longitude of Arcturus

. 13°. 24'. 52": and so of any other Stars.

After the Argonautic Expedition we hear no more of Astronomy 'till the days of Thales: He [[77]] revived Astronomy, and wrote a book of the Tropics and Equinoxes, and predicted Eclipses; and Pliny [[78]] tells us, that he determined the Occasus Matutinus of the Pleiades to be upon the 25th day after the Autumnal Equinox: and thence [[79]] Petavius computes the Longitude of the Pleiades in