"The use is purely a matter of self-protection.

The desert has got such a devil of a fight for existence, without shade and practically without water, that it can't afford to take any other chance of extermination, and so it protects itself with needles here and spears there and sabers at other places and roots that strike down to China everywhere.

First thing we are going to get is some soap." "Great hat!" exclaimed Donald.

"If you wanted soap why didn't you bring some ?" "For all you know," laughed Linda, "I may be going to education you up a little.

Dare you to tell me how many kinds of soap I can find today that the Indians used, and where I can find it." "Couldn't tell you one to save my life," said Donald.
"And born and reared within a few miles of the desert!" scoffed Linda.
"Nice Indian you'd make.