but the lesser of the two, with its square, powerful head and tiger-fanged jaws, and the tremendous, rending claws on its short forearms, was plainly of a different species from the great herb-eaters of the dinosaurian family. It was one of the smaller members of that terrible family of carnivorous dinosaurians which ruled the ancient cycad forests as the black-maned lion rules the Rhodesian jungles to-day. The massive iguanodon which fled before it so madly, though of fully thrice its bulk, had reason to fear it as the fat cow fears a wolf.

A moment more, and the dreadful chase, with a noise of raucous groans and pantings, burst forth into the open, not fifty feet from where the colossus stood watching. Almost at the watcher’s feet the fugitive was overtaken. With a horrid leap and a hoot of triumph, the pursuer sprang upon its neck and bore it to the ground, where it lay bellowing hoarsely and striking out blunderingly with the massive, horn-tipped 8 spur which armed its clumsy wrist. The victor tore madly at its throat with tooth and claw, and presently its bellowing subsided to a hideous, sobbing gurgle.

The diplodocus, meanwhile, had been looking down upon the scene with half-bewildered apprehension. These creatures were insignificant in size, to be sure, as compared with his own colossal stature, but the smaller one had a swift ferocity which struck terror to his dull heart.

Suddenly a red wrath mounted to his small and sluggish brain. His tail, as we have seen, was curled in a half-circle at his side. Now he bent his body with it. For an instant his whole bulk quivered with the extraordinary tension. Then, like a bow released, the bent body sprang back. The tail (and it weighed at least a ton) struck the victor and the victim together with an annihilating shock, and swept them clean around beneath the visitor’s feet.

Down he came upon them at once, with the crushing effect of a hundred steam pile-drivers; and for the next few minutes his panicky rage expended itself in treading the two bodies into a shapeless mass. Then he slowly backed off down into the water where the weedy growths were thickest, till once more his whole form was concealed except the insignificant head. This he reared among the swaying tufts of the “mares’ tails,” and waited to see what strange thing would happen next.

He had not long to wait. That hideous, mangled heap there, sweating blood in the noon sun, seemed 9 to have some way of making its presence known. Crashing sounds arose in different parts of the forest, and presently some half-dozen of the leaping, kangaroo-like flesh-eaters appeared.

They were of varying sizes, from ten or twelve feet in length to eighteen or twenty, and they eyed each other with jealous hostility. But one glance at the weltering heap showed them that here was feasting abundant for them all. With a chorus of hoarse cries they came hopping forward and fell upon it.

Presently two vast shadows came overhead, hovering a moment, and a pair of the great bird-lizards dropped upon the middle of the heap. Hooting savagely, with wings half uplifted, they struck about them with their terrible beaks till they had secured room for themselves at the banquet. Other unbidden guests came leaping from among the thickets; and in a short time there was nothing left of the carcasses except two naked skeletons, dragged apart and half dismembered by mighty teeth. In the final mêlée one of the smaller revellers was himself pounced upon and devoured.

Then, as if by consent of a mutual distrust, the throng drew quickly apart, each eyeing his neighbor warily, and scattered into the woods. Only the two grim bird-lizards remained, seeming to have a sort of understanding or partnership, or possibly being a mated pair. They pried into the cartilages and between the joints of the skeletons with the iron wedges of their beaks, till there was not another tit-bit to be enjoyed. 10 Then, hooting once more with satisfaction, they spread their batlike vanes and flapped darkly off again to their red watch-tower on the cliff.

When all was once more quiet the giant visitor fell to pasturing among the crisp and tender water-weeds. It took a long time to fill his cavernous paunch by way of that slender neck of his, and when he was satisfied he went composedly to sleep, his body perfectly concealed under the water, his head resting on a little islet of matted reeds in a thicket of “mares’ tails.” When he woke up again the sun was half-way down to the west, and the beach glowed hotly in the afternoon light. Everything was drenched in heavy stillness. The visitor made up his drowsy mind that he must leave his hiding-place and go and bask in that delicious warmth.

He was just bestirring himself to carry out his purpose, when once more a swaying in the rank foliage of the cycads caught his vigilant eye. Discreetly he drew back into hiding, the place being, as he had found it, so full of violent surprises.

Suddenly there emerged upon the beach a monster even more extraordinary in appearance than himself. It was about thirty-five feet in length, and its ponderous bulk was supported on legs so short and bowed that it crawled with its belly almost dragging the ground. Its small head, which it carried close to the earth, was lizard-like, shallow-skulled, feeble-looking, and its jaws cleft back past the stupid eyes. In fact, it was an inoffensive-looking head for such an 11 imposing body. At the base of the head began a system of defensive armor that looked as if it might be proof against artillery. Up over the shoulders, over the mighty arch of the back, and down over the haunches as far as the middle of the ponderous tail, ran a series of immense flat plates of horn, with pointed tips and sharpened edges. The largest of these plates, those that covered the center of the back, were each three feet in height, and almost of an equal breadth. Where the diminished plates came to an end at the middle of the tail, their place was taken by eight immense, needle-pointed spines, set in pairs, of which the chief pair had a length of over two feet. The monster’s hide was set thick with scales and knobs of horn, brilliantly colored in black, yellow, and green, that his grotesque bulk might be less noticeable to his foes among the sharp shadows and patchy lights of the fern jungles where he fed.

The sluggish giant moved nervously, glancing backwards as he came, and seemed intent upon reaching the water. In a few moments his anxiety was explained. Leaping in splendid bounds along his broad trail came two of those same ferocious flesh-eaters whom the great watcher among the reeds so disliked. They ranged up one on each side of the stegosaur, who had halted at their approach, stiffened himself, and drawn his head so far back into the loose skin of his neck that only the sharp, chopping beak projected from under the first armor-plate. One of the pair threatened him from the front, as if to engross his 12 attention, while the other pounced upon one of his massive, bowed hind-legs, as if seeking to drag it from beneath him and roll him over on his side.

But at this instant there was a clattering of the plated hide, and that armed tail lashed out with lightning swiftness, like a porcupine’s. There was a tearing screech from the rash flesh-eater, and he was plucked back sidewise, all four feet in air, deeply impaled on three of those gigantic spines. While he clawed and writhed, struggling to twist himself free, his companion sprang hardily to the rescue. She hurled herself with all her weight and strength full upon the stegosaur’s now unprotected flank. So tremendous was the impact that, with a frightened grunt, he was rolled clean over on his side. But at the same time his sturdy forearms clutched his assailant, and so