instincts naturally followed the example of
their monarch, and began to prey upon each other. Some indeed had
actually already been trained and used by men in their hunting
expeditions, and thus the semi-domesticated cat-like animals above
referred to naturally became the ancestors of the leopards and
jaguars.

One illustration of what some may be tempted to call a fantastic
theory, though it may not elucidate the problem, will at least point
the moral contained in this supplement to our knowledge regarding the
mysterious manner in which our evolution has proceeded. The lion it
would appear might have had a gentler nature and a less fierce aspect
had the men of those days completed the task that was given them to
perform. Whether or not he is fated eventually "to lie down with the
lamb and eat straw like the ox," the destiny in store for him as
pictured in the mind of the Manu has not yet been realized, for the
picture was that of a powerful but domesticated animal--a strong
level-backed creature, with large intelligent eyes, intended to act as
man's most powerful servant for purposes of traction.

The "City of the Golden Gates" and its surroundings must be described
before we come to consider the marvellous system by which its
inhabitants were supplied with water. It lay, as we have seen, on the
east coast of the continent close to the sea, and about 15 deg. north
of the equator. A beautifully-wooded park-like country surrounded the
city. Scattered over a large area of this were the villa residences of
the wealthier classes. To the west lay a range of mountains, from
which the water supply of the city was drawn. The city itself was
built on the slopes of a hill, which rose from the plain about 500
feet. On the summit of this hill lay the emperor's palace and gardens,
in the centre of which welled up from the earth a never-ending stream
of water, supplying first the palace and the fountains in the gardens,
thence flowing in the four directions and falling in cascades into a
canal or moat which encompassed the palace grounds, and thus separated
them from the city which lay below on every side. From this canal four
channels led the water through four quarters of the city to cascades
which in their turn supplied another encircling canal at a lower
level. There were three such canals forming concentric circles, the
outermost and lowest of which was still above the level of the plain.
A fourth canal at this lowest level,