tful and interesting things they found. I suppose you
think of the desert as being a flat stretch of sand with nothing on it,
like the maps of the desert of Sahara, in Africa? I know I used to. But
indeed it is not so. Many strange forms of life exist, both plant and
animal, as we shall soon learn.

This particular morning as they started out, Mary noticed that the
ground was covered with cactus burrs. Did you ever see a cactus burr?
They are similar to those you find in the country, but larger, with
pointed daggers sticking out in all directions, and they grow on a
crooked, prickly stalk or spine in the most comical way imaginable. As
they ambled along they discovered more and yet more of them. Mary, being
an inquisitive child, jumped down from Bepo's back for a closer
inspection of the strange things. Then she discovered a queer thing. She
had seen lots of burrs before but these were different. All the sharp
daggers had been removed, the burrs had been split open and the soft
centers taken out.

Mary looked all around, who could have done it? No man could have opened
all those burrs, it would have taken him weeks. He would have pricked
his fingers many times and often besides.

Then she heard a faint rustling in the bushes near by. Softly she
tiptoed behind a clump of sagebrush and peeked over. There was a little
rabbit nibbling away at a cactus burr. He handled it very carefully to
guard against pricks and very daintily nibbled off, one by one, the tiny
daggers. When all were gone he split open the burr, sucked out the
juice, then nibbled up the soft center. So you see, even on this sandy
desert, Nature cares for all her children.

Mary was so pleased at the sight that she clapped her little hands in
glee and cried, "You dear, cute little thing!" But Mr. Rabbit was not
used to little girls. He looked up suddenly with fright in his tiny pink
eyes, then sprang away into the bushes.

Mary led Bepo around to a rock and clambered onto his back. As they
slowly stubbed along over the rough trail they surprised many a family
of rabbits and not a few were nibbling away at the prickly cactus burrs.

You can ride for miles over the desert without finding water, no lakes,
no rivers, no little stream even; and if it were not for the sweet
juices in the center of these burrs many small animals would die of
thirst.

[Illustration: _Twilight on the Desert_]

[Illustration]

THE DANGEROUS PET

MARY, with he