of self-preservation, that faced a huge bull-ape that was already
charging down upon him.

The two years that had elapsed since Tarzan had come out of the
savage forest with his rescued mate had witnessed slight diminution
of the mighty powers that had made him the invincible lord of the
jungle. His great estates in Uziri had claimed much of his time
and attention, and there he had found ample field for the practical
use and retention of his almost superhuman powers; but naked and
unarmed to do battle with the shaggy, bull-necked beast that now
confronted him was a test that the ape-man would scarce have welcomed
at any period of his wild existence.

But there was no alternative other than to meet the rage-maddened
creature with the weapons with which nature had endowed him.

Over the bull's shoulder Tarzan could see now the heads and shoulders
of perhaps a dozen more of these mighty fore-runners of primitive
man.

He knew, however, that there was little chance that they would attack
him, since it is not within the reasoning powers of the anthropoid
to be able to weigh or appreciate the value of concentrated action
against an enemy--otherwise they would long since have become
the dominant creatures of their haunts, so tremendous a power of
destruction lies in their mighty thews and savage fangs.

With a low snarl the beast now hurled himself at Tarzan, but the
ape-man had found, among other things in the haunts of civilized
man, certain methods of scientific warfare that are unknown to the