at any place as seen by an observer at the
earth's surface, and the position in which it
would appear at the same moment if viewed
by an observer at the centre of the earth.
Equally simple is the fundamental measure
of time, viz. the hour or period required by
the moon in her orbit, relatively to the sun,
to traverse a space equal to her own disc;
and this measure was peculiarly sacred in
Egypt, each hour of the twenty-four which
elapse during a single rotation * of the earth
being consecrated to its own particular deity,
twelve of light and twelve of darkness. " Ex-
plain the God in the Hour " is the demand
made of the adept in the Hall of Justification.
And that God in the Hour, we learn, was
Thoth, the Lord of the Moon, and "the
Reckoner of the Earth."
A singular relation of a similar kind exists
* The word " rotation " is always applied iu this work
to the motion of a body about its own axis; "revolu-
tion," to its motion around another bod v.