PLATE XVI.

FIG. 2.

Constellations above Southern Horizon.
Invisible—Noon, Spring Equinox.
Visible—Midnight, Autumn Equinox.

5,744 B.C. Lat. 45° N.

5,744 B.C. Lat. 45° N.

Constellations above Northern Horizon.
Invisible—Noon, Spring Equinox.
Visible—Midnight, Autumn Equinox.

FIG. 1.

PLATE XVII.