[Illustration: Outlines of two carved slates drawn from Plates I. and III. in _The Proceedings of the Society of Biblical Archæology_ for May 1900. [_To face p. 236._] PLATE XXII.[120] [120] This plate has been drawn from the globe adjusted to the dates and latitudes of 5744 B.C. Lat. 18° N., and of 3588 B.C., Lat. 23° N. In Grecian legend Cepheus, Cassiopeia, Andromeda, the sea-monster (Cetus), and Perseus are associated together, and on the Grecian sphere five neighbouring constellations represent the actors of the legend. Studying these constellations as they must have appeared to observers of the heavens at different dates, we shall, I think, see some reason to attribute the imagining of the figure of the hero Perseus to a later age than that of the other members of the group, and, on the other hand, there are considerations which may make us hesitate whether we should not place the origin of the constellation Andromeda at an even earlier date than those of Cepheus, Cassiopeia, and the sea-monster.[121] One point in the legend, however, finds strong astronomic support from a study of the precessional globe--namely, the fact that Cepheus and Cassiopeia were personages of Ethiopian--_i.e._, of tropical provenance. [121] See below at p. 246, and pp. 242, 243. It will be seen in Plate XXII., fig. 1, that only in a latitude as far South as 18° N. could the figure of Cassiopeia--even at the early date of 6000 B.C.--have been imagined as that of a queen seated in royal dignity, and visible in the northern quarter of the heavens. By referring to Plate XV., we may learn that in Lat. 45° N. at that date, Cassiopeia would have appeared in the southern quarter of the sphere, head downwards, while the figure of Cepheus could only have been observed by turning first to one and then to the other quarter of the sky. As, however, the _head of Cepheus_ would have marked so exactly the solstitial colure 6000 B.C., it seemed to me only right to seek for a latitude in which his figure and that of his queen should appear upright and in the same quarter of the heavens--a latitude, therefore, in which it might be possible to suppose these constellations had been originated as star-marks of the solstitial season. To attain this object it was necessary to set the globe to the very low latitude of 18° N.