older--a sense of humor, which he gave play to when the mood suited
him. It was a grim humor and sometimes ghastly; but it satisfied
Tarzan.

Then, too, were one to sing and whistle while working on the ground,
concentration would be impossible. Tarzan possessed the ability to
concentrate each of his five senses upon its particular business.
Now he worked at skinning the six pigs and his eyes and his fingers
worked as though there was naught else in all the world than these
six carcasses; but his ears and his nose were as busily engaged
elsewhere--the former ranging the forest all about and the latter
assaying each passing zephyr. It was his nose that first discovered
the approach of Sabor, the lioness, when the wind shifted for a
moment.

As clearly as though he had seen her with his eyes, Tarzan knew
that the lioness had caught the scent of the freshly killed pigs
and immediately had moved down wind in their direction. He knew
from the strength of the scent spoor and the rate of the wind about
how far away she was and that she was approaching from behind him.
He was finishing the last pig and he did not hurry. The five pelts
lay close at hand-he had been careful to keep them thus together
and near him--an ample tree waved its low branches above him.

He did not even turn his head for he knew she was not yet in sight;
but he bent his ears just a bit more sharply for the first sound
of her nearer approach. When the final skin had been removed he
rose. Now he heard Sabor in the bushes to his rear, but not yet
too close. Leisurely he gathered up the six pelts and one of the
carcasses, and as the lioness appeared between the boles of two