the dry air and lowers the temperature. The water in the olla soon
becomes cold and if properly protected will remain cool during the
entire day.

The dry air also acts as a valuable preservative. During the winter,
when the weather is cool but not freezing, if fresh meat is hung out in
the open air, it will keep sweet a long time. A dry crust soon forms
upon its surface which hermetically seals the meat from the air and
keeps it perfectly sweet. In the summer it is necessary to dry the
meat more quickly to keep it from spoiling. It is then made into
"jerky" by cutting it into long, thin strips and hanging them up in the
sun to dry. After it is thoroughly dried, it is tied up in bags and
used as needed, either by eating it dry from the pocket when out on a
tramp, or, if in camp, serving it in a hot stew.

Even the carcass of a dead animal that is left exposed upon the ground
to decompose does not moulder away by the usual process of decay, but
what is left of the body after the hungry buzzards and coyotes have
finished their feast, dries up into a mummy that lasts for years.

Climate everywhere unquestionably influences life in its evolution, but
it is not always easy to determine all of its effects in detail. In
Arizona, which is but a comparatively small corner of our country, live
several races of men that are as different from each other as nature
could make them, yet all live in the same climate.

The Pueblo Indian is in a manner civilized, peaceable and industrious.
He is brave in self-defense, but never seeks war nor bloodshed. Quite
different is his near neighbor, the bloodthirsty Apache, who seems to
delight only in robbing and killing people. Cunning and revenge are
pronounced traits of his character and the Government has found him
difficult to conquer or control. The Mexican leads a shiftless,
thriftless life and seems satisfied merely to exist. He has,
unfortunately, inherited more of the baser than the better qualities of
his ancestors, and, to all appearance, is destined to further
degenerate. The American is the last comer and has already pushed
civilization and commerce into the remotest corners and, as usual,
dominates the land.

As diverse as are these several races in many respects, each one of
them furnishes splendid specimens of physical manhood. The Indian has
always been noted for his fine physique, and is large bodied, well
muscled and full chested. One advantage which the so