"Why, that's an exclamation, not a name--Oh!" Jane went off into another fit of laughter. "Omar Khayyam! Isn't that rich! Whatever did you do when you heard it?

"I led Graves to the tavern door agape," answered Tex, grinning.

By this time they had swung into the trail leading to the C Bar and the miles rolled swiftly behind them. Suddenly Tex touched his companion's arm, both reining in abruptly. Squarely in the middle of the trail was a rattlesnake, huge for the prairie, and it coiled swiftly, the triangular head erect and the tail whirring.

"Ugh!" exclaimed Jane, a wave of revulsion sweeping over her. "What a monster! Can you shoot it from here?"

Tex nodded. "Yes, but while I usually do, I rather dislike the job. He's a snake all right, man's hereditary enemy since the world was young, and the hatred for him comes to us naturally. Sinister, repellant, and all that, that chap is as square as any enemy in the wild, and he is coolly business-like. He hasn't a friend outside his own species, and even in that is to be found one of his chief enemies. There he lies, for all to see, his gauntlet thrown, whirring his determination to defend himself, and to depart if given a chance. Look at those coils, their grace and power, not an ungainly movement the whole length of him. Look at his markings--from the freshness of his skin and its vivid coloration I'd say he has very recently parted with his old skin, and the parasites which infected it. You shed your skin in vain, Old-Timer--you'll not enjoy it long," and his hand dropped to the holster. A flash and a roar, a rolling burst of smoke, and the defiant head jerked sidewise, hanging by a few shreds of muscle to the writhing coils. "'Dead for a ducat, dead!'" quoted Tex, leading the way past his victim.

A little farther on he pointed to a track along the side of the trail.

"Dog or wolf," he said. "They're identical except for directness. A dog's track wavers, a wolf's does not. From the fact that it follows the trail I'd say that was a dog; but it may puzzle us before we lose it. He was a big animal, though, and if a wolf he's a lobo, the gray buffalo wolf, cunning as Satan and brave as Hector. And what a killer! No carrion for him, no meat killed by anyone but himself, and usually he's shy about returning to that. He creates havoc on a cattle range. Poison he sneers at, and it takes mighty shrewd trapping to catch him. To avoid the scent of man is his leading maxim. Before the snow comes he is safe--afterwards his troubles begin if a tracer crosses his trail."

"Why I thought he was a big coyote," said Jane. "You make him out to be quite a remarkable animal."

"And justly," responded her companion. "Coyote? They shouldn't be mentioned together in the same breath. The buffalo gray is a king--the coyote a crawling scavenger, with wits in place of courage. The difference in the natures is indicated graphically by the way they hold their tails. The coyote's droops at a sharp angle, but the lobo's is held straight out. A single wolf is more expensive to ranchers now than he once was, because he has been hunted so hard with traps and poison that he now has learned not to eat dead animals, and in some cases even to ignore his own kill after once he has left it. I've heard of several wolves, each of which have been blamed for the killing of sixty cows in a year, and their score might have run quite some higher. Have you been watching this track? I'd say it's wolf--and as direct as an arrow. And there is the great western target--tomato, from the color of it. Suppose you try your hand at it?"

Jane produced the pistol and listened intelligently (and how rare a gift that is!) to all her companion had to tell her. When the pistol was emptied the can was still untouched. Laughing, Tex dismounted, and drew a long rectangle in the sand, with the can in the median line and to one end.