his brows. Just as a superstitious person, once convinced that by appeal to a favorite talisman he will be guided aright, will inevitably apply to that talisman on all occasions, so Burl plumped himself down to think.
Those questions were easily answered. Burl was naked. He would search out garments for himself. He was weaponless. He would find himself a spear. He was hungry—and would seek food, and he was far from his tribe, so he would go to them. Puerile reasoning, of course, but valuable because it was consciously reasoning, consciously appealing to his mind for guidance in difficulty, deliberate progress from a mental desire to a mental resolution.
Even in the high civilization of ages before, few men had really used their brains. The great majority of people had depended upon machines and their leaders to think for them. Burl's tribe-folk depended on their stomachs. Burl, however, was gradually developing the habit of thinking which makes for leadership and which would be invaluable to his little tribe.
He stood up again and faced up-stream, moving slowly and cautiously, his eyes searching the ground before him keenly and his ears alert for the slightest sound of danger. Gigantic butterflies, riotous in coloring, fluttered overhead through the misty haze. Sometimes a grasshopper hurtled through the air like a projectile, its transparent wings beating the air frantically. Now and then a wasp sped by, intent upon its hunting, or a bee droned heavily along, anxious and worried, striving in a nearly flowerless world to gather the pollen that would feed the hive.
Here and there Burl saw flies of various sorts, some no larger than his thumb, but others the size of his whole hand. They fed upon the juices that dripped from the maggot-infested mushrooms, when filth more to their liking was not at hand.
Very far away a shrill roaring sounded faintly. It was like a multitude of clickings blended into a single sound, but was so. far away that it did not impress itself upon Burl's attention. He had all the strictly localized vision of a child. What was near was important, and what was distant could be ignored. Only the imminent required attention, and Burl was preoccupied.
Had he listened, he would have realized that army ants were abroad in countless millions, spreading themselves out in a broad array and eating all they came upon far more destructively than so many locusts.
Locusts in past ages had eaten all green things. There were only giant cabbages and a few such tenacious rank growths in the world that Burl knew. The locusts had vanished with civilisation and knowledge and the greater part of mankind, but the army ants remained as an invincible enemy to men and insects, and the most of the fungus growths that covered the earth.
Burl did not notice the sound, however. He moved forward, briskly though cautiously, searching with his eyes for garments, food, and weapons. He confidently expected to find all of them within a short distance.
Surely enough, he found a thicket—if one might call it so—of edible fungi no more than half a mile beyond the spot where he had improvised his sandals to protect the soles of his feet.
Without especial elation, Burl tugged at the largest until he had broken off a food supply for several days. He went on, eating as he did so, past a broad plain a mile and more across, being broken into odd little hillocks by gradually ripening and suddenly developing mushrooms with which he was unfamiliar.
The earth seemed to be in process of being pushed aside by rounded protuberances of which only the tips showed. Blood-red hemispheres seemed to be forcing aside the earth so they might reach the outer air.
Burl looked at them curiously, and passed among them without touching them. They were strange, and to Burl most strange things meant danger. In any event. Burl was full of a new purpose now. He wished garments and weapons.
Above the plain a wasp hovered, a heavy object dangling beneath its black belly, ornamented by a single red band. It was a wasp—the hairy sand-wasp—and it was bringing a paralyzed gray caterpillar to its burrow.
Burl watched it drop down with the speed and sureness of an arrow, pull aside a heavy, flat stone, and descend into the ground. It had a vertical shaft dug down for forty feet or more.
It descended, evidently inspected the interior, reappeared, and vanished into the hole again, dragging the gray worm after it. Burl, marching on over the broad plain that seemed stricken with some erupting disease from the number of red pimples making their appearance, did not know what passed below, but observed the wasp emerge again and busily scratch dirt and stones into the shaft until it was full.
The wasp had paralyzed a caterpillar, taken it to the already prepared burrow, laid an egg upon it, and filled up the entrance. In course of time the egg would hatch into a grub barely as long as Burl's forefinger, which would then feed upon the torpid caterpillar until it had waxed large and fat. Then it would weave itself a chrysalis and sleep a long sleep, only to wake as a wasp and dig its way to the open air.
Burl reached the farther side of the plain and found himself threading the aisles of one of the fungus forests in which the growths were hideous, misshapen travesties upon the trees they had supplanted. Bloated, yellow limbs branched off from rounded, swollen trunks. Here and there a pear-shaped puff-ball, Burl's height and half as much again, waited craftily until a chance touch should cause it to shoot upward a curling puff of infinitely fine dust.
Burl went cautiously. There were dangers here, but he moved forward steadily, none the less. A great mass of edible mushroom was slung under one of his arms, and from time to time he broke off a fragment and ate of it, while his large eyes searched this way and that for threats of harm.
Behind him, a high, shrill roaring had grown slightly in volume and nearness, but was still too far away to impress Burl. The army ants were working havoc in the distance. By thousands and millions, myriads upon myriads, they were foraging the country, clambering upon every eminence, descending into every depression, their antennæ wav-
