In 1900 the remnant in the Park had fallen to thirty, and their extinction seemed certain. But the matter was taken up energetically by the officers in charge. Protection, formerly a legal fiction, was made an accomplished fact. The Buffalo have increased ever since, and to-day number 200, with the possibility of some stragglers.

We need not dwell on the story of the extinction of the great herds. That is familiar to all,[B] but it is well to remind the reader that it was inevitable. The land was, or would be, needed for human settlement, with which the Buffalo herds were incompatible; only we brought it on forty or fifty years before it was necessary. "Could we not save the Buffalo as range-cattle?" is the question that most ask. The answer is: It has been tried a hundred times and all attempts have been eventually frustrated by the creature's temper. Buffalo, male or female, are always more or less dangerous; they cannot be tamed or trusted. They are always subject to stampede, and once started, nothing, not even sure destruction, stops them; so in spite of their suitability to the climate, their hardihood, their delicious meat, and their valuable robes, the attempts at domesticating the Buffalo have not yet been made a success.

A small herd of a dozen or so is kept in a fenced range near the Mammoth Hot Springs, where the traveller should not fail to try for pictures, and with them he will see the cowbirds, that in some regions replace the true buffalo-birds. Perched on their backs or heads or running around them on the ground are these cattle birds as of yore, like boats around a man-o'-war, or sea-gulls around a whale; living their lives, snapping up the tormenting flies, and getting in return complete protection from every creature big enough to seem a menace in the eyes of the old time King of the Plains.

THE DOOMED ANTELOPE AND HIS HELIOGRAPH

The Antelope, or Pronghorn, is one of the most peculiar animals in the world. It is the only known ruminant that has hollow horns on a bony core as with cattle, and also has them branched and shed each year as in the Deer.

It is a creature of strangely mixed characteristics, for it has the feet of a Giraffe, the glands of a goat, the coat of a Deer, the horns of an ox and Deer combined, the eyes of a Gazelle, the build of an Antelope, and—the speed of the wind. It is the swiftest four-footed creature native to the plains, and so far as known there is nothing but a blooded race horse that can outrun it on a mile.

But the peculiarity that is most likely to catch the eye of the traveller is the white disc on its rear.

The Heliograph