As the sun was setting, our wisest course was to go back to our bivouac of the evening before, and to postpone until the next day the discovery of the passage we had sought in vain. Upon the whole, the sight of the cataract had amply repaid us for our useless walk.

Our little party, therefore, once more plunged into the forest, rather at random, though taking care not to go too far from the stream. Two or three times we seemed to have reached the spot where we left the bank; but we soon got into the most inextricable thickets. As the time wore on, I began to think we had passed the place; and, as is often the case in similar circumstances, opinions were divided. A fox, which appeared within gunshot, interrupted our discussion. I fired, and the animal fell. It was a magnificent specimen, and exactly like its European confrere. By a singular chance, at the very moment it was expiring, a crow just above our heads uttered a loud croaking.

"There! the crow is thanking us for having rid him of his enemy, the fox," said Sumichrast to Lucien.

The boy laughed heartily at this joke. In spite of our advice, l'Encuerado would insist upon skinning the animal, whose pelt he wished to preserve. Fortunately, he was very quick at such an operation, and the beautiful fur was soon hanging over his arm, ready to be stretched outside his basket to dry.

"I hope," said Sumichrast to Lucien, "that you have already recognized the fox's relationship."

"Oh yes! in its color and shape it is like the cayotte."

"You are quite right, but the cayotte and the fox are both Gringalet's cousins."

"I can scarcely believe that, for Gringalet has short hair, is spotted with black and white, has gray eyes—"

"Those are only secondary characteristics," interrupted Sumichrast. "Gringalet belongs to the carnivorous type, called by naturalists Digitigrades."

"Is Gringalet a digitigrade?" asked Lucien, smiling.

"Yes, certainly; that is to say, he walks on his toes, and not on the sole of his feet, exactly like the fox, whose teeth, also, are perfectly similar to those of Gringalet. The principal difference between them is, that the fox has eyes which are formed so as to enable it to see in the dark, a quality which Gringalet does not possess in the same degree."

"Are there such things as wild dogs?"

"Yes, although the point has been much disputed. But the dog, the faithful companion of man, has been so long domesticated, that little similarity of appearance exists between them. However, the cayotte, the fox, and the wolf may be called wild dogs."

We had once more got into the midst of a thicket without discovering the least trace of our resting-place. It became important that we should soon find our starting-point. I noticed that Gringalet, instead of gambolling round us as he generally did, remained behind, pricking up his ears, and appearing excessively knowing.

"What do you think, shall we take Gringalet for our guide?" said I.

As soon as the animal heard his name mentioned, he rushed towards me, and I patted him.

"Come, tell your dog to lead us to the bivouac," I said to Lucien.

"To the bivouac! to the bivouac!" cried the boy, patting the animal.

Gringalet really seemed to understand, for he sniffed up the air, and at once went to the front. I soon discovered that he was taking us back by a very circuitous path.

"To the bivouac! to the bivouac!"

Gradually the noise of the torrent became more distinct, and our guide plunged into the brush-wood. While we were cutting down the branches that stopped up our path, Gringalet waited with his ears pricked up and one foot uplifted. At last we caught sight of the hut, which was greeted with such pleasure and relief as only known by fatigued travellers.

It was not without emotion that I again beheld this spot, to which I had, as I thought, said good-bye forever. The scarcely extinguished embers, and the shelter which we had raised, had quite a home-like appearance. Sumichrast said he felt the same impression, and Lucien declared that his first idea had been that we should find an Indian in the hut.

But what about Gringalet? Had he then really understood us? Those who have made a trial of canine intelligence will not doubt the fact for a moment. The word bivouac, having been so often pronounced since we set out, must have struck both the mind and the ears of the animal, so as to have become almost synonymous in his ideas with dinner and rest.

The next day at sunrise we set out, gently ascending the course of the stream. Sumichrast's hand was still in pain, and quite prevented him using his gun. L'Encuerado, though disfigured, had, at least, the free use of his limbs. The inexperienced traveller is incessantly exposed to misfortunes of this kind. Turned out into the midst of various unknown natural objects, he carelessly plucks a leaf, breaks down a branch, or gathers a flower; and in many cases his punishment is prompt and terrible, and the innocent diversion of a second has to be expiated by hours of anguish. In the wild life of the wilderness, dangers become so multiplied, that more courage than is generally supposed is required to face them. Every explorer of unknown scenes must make up his mind to endure hardships. More than one whom I have seen start full of confidence, at the end of three days have returned, wearied, bruised, ill, discouraged, and, in fact, conquered. By degrees, of course, experience comes to the help of those whose moral courage is strong enough to induce them to persevere. They soon learn to recognize at a glance the tree that it is best to avoid, the grass that must not be trodden on, the creeper the touch of which is to be shunned, and the fruit which should not be tasted. At last the requirements of the body are to some extent mastered, and it follows the dictation of the soul without complaint. The long-experienced traveller can scarcely fail to be astonished at the delicate susceptibility of his casing of flesh, which is bruised by blows, torn by thorns, devoured by insects, and yet, day after day, the persevering man continues to face death under its most horrible aspects—poison from venom of serpents, giddiness from sun-stroke, blindness from the power of the moon, want of sleep, hunger, and thirst.

I had just taken a review of our situation when these reflections were suggested to me. Halting, I permitted my comrades to pass me; their appearance, after so many days' travel, I give. First, there was Sumichrast, tall and broad-shouldered, his features displaying both mildness and energy; one arm in a sling, his clothes torn to shreds, and his face furrowed by five or six deep scratches; leaning on a stick carried in his left hand, he seemed a little bent; but his vigorous form still told of abundant endurance and determination. Behind him, his gun slung to his cross-belt, came Lucien, slightly stooping, although his step was firm and determined; his face was seamed with scratches, his hands bruised and brown from exposure. As he passed in front of me, he smiled and gave a joyous hurrah, and lifted his cap, beneath which his hair flowed down in golden curls. Gringalet, now reconciled to the squirrels' skins, walked close by his master; truly he looked like standing more work. Lastly, l'Encuerado, his arms and legs bare, and laden with guavas, brought up the rear. The brave Indian tried to raise his straw-hat as he passed by me, his bony visage expanded, and his smile showed a row of white teeth which were worthy of competing with Gringalet's. Well satisfied with my inspection, I shouldered my gun, and resumed the head of the column.

The cliffs of the ravine became gradually more wooded, and the descent was effected without accident. I kept along the bank looking out for a ford. At last a bend of the stream, where the water flowed calmly and silently, enabled us to do so without difficulty. I then proposed a halt. Close by us rose some enormous rocks covered with moss, which, in flood-time, must have been reached by the water; in front of us was a gentle slope covered with turf.

We were descending the slope when an object, indistinct at first, emerged from the edge of the wood, and, appearing to roll more than run over the grass, advanced toward us. It was an enormous tortoise; but a tortoise which might successfully have raced with the hare. L'Encuerado tried to stop it, but fell in his effort. Sumichrast, quite forgetting his bad hand, dealt the animal a blow with the butt-end of his gun, the effect of which was slightly to slacken the pace of the enemy. The Indian, furious at his failure, threw down his load, and came running up. Our united efforts succeeded, about twenty feet from the stream, in throwing the animal on its back.

Lucien, rather startled at this scene, and at the size of the tortoise, then came nearer to examine it. I kept him at some distance from the reptile, who was viciously agitating its enormous feet, armed with formidable claws; while its mouth, which was like a horny beak, opened and shut menacingly.

"It is a galapago," said l'Encuerado; "it is of no use for food."

This creature, which is called by the savants the alligator-tortoise, measured more than a yard from its head to its tail. The latter appendage was almost as long as the body, and was covered with a triple row of scaly crests fitting into each other. The gray, wrinkled, and almost scaly skin of the reptile formed rolls round its neck of a disgusting appearance—one might almost fancy them unhealthy excrescences. The horrible beast turned towards us its gaping mouth with a vicious manner. The turtle-fishers much dread the galapagos, which, being more agile than the ordinary tortoise, give them sometimes frightful wounds, either with their sharp claws or their horny jaws. Their flesh is declared to be unwholesome.

Just as we were leaving, l'Encuerado wanted to cut off the reptile's head. Sumichrast opposed this useless slaughter, and was inclined to replace the tortoise on its feet. But the Indian refused to assist in this good work, for he asserted that it was equivalent to leaving a rattlesnake alive. Two or three times the animal was very nearly repaying our kindness by a bite; for, as soon as we came near, it managed to twist round on its upper shell. We were about to abandon it to its fate, when suddenly, the slope of the ground helping us, we managed to set it on its feet; as soon as it was turned over, it rushed at Lucien. The enormous rolls round its neck, being all distended, made it carry its head very forward, so, with a single blow of his cutlass, l'Encuerado decapitated the assailant. We were then witnesses to a strange sight, for while Gringalet was furiously attacking the motionless head, the feet, continuing to move, bore along the body, which in a moment disappeared in the lake. Although we had often before seen tortoises survive for a considerable time wounds which were certainly mortal, the strength of the nervous system which was exhibited in this reptile almost staggered us.

"Now, my brave friend, try and swim without your head, and take care not to break your skull against the rocks!" cried the exasperated Indian. "The father saves your life, and then you want to hurt his child! You hardly saw me, or you'd have known that I am pretty well able to bite. Good-bye! and take good care of yourself!"

We may readily see that the Indian was any thing but a generous enemy; but the fact was, the galapagos were old enemies, for one had nearly bitten off his hand while he was bathing. The turf-carpeted bank soon led us into the thick forest again. We had been walking for more than an hour through a perfect labyrinth of gigantic trees, and over a bare and yet rich soil—for it is only in the glades that the ground is covered with grass—when l'Encuerado heard the call of a small species of pheasant peculiar to this country.

"Bend towards the left to get near the game," said Sumichrast, in a low voice; "and, whatever you do, don't shake the foliage."

"We're all right now," muttered l'Encuerado; "listen! I'll predict that we shall have a good dinner to-day."

The Indian laid down his load, which Sumichrast and Lucien took charge of, while I followed the former behind the trees. My companion soon went a little in front, and imitated the cry of the bird we were pursuing, so as to make them answer, and thus show us where they were hidden. The imitation was really so perfect that I moved towards it, thinking to find the bird, and of course came upon the Indian lying in ambush. This same mistake had happened to me before with Sumichrast, who imitated the voice of birds almost as well as the Indian. At last his cry produced an answer, and at about a hundred yards from us, on the top of a not very tall oak, were perched three enormous pheasants.

Bent down and crawling behind the trees, I joined l'Encuerado, keeping my eye fixed on the game, which stretched out their necks with an anxious look, and seemed to be listening. Two gun-shots went off at once; one of the birds fell dead at our feet, and the two others flew away. One of these fugitives flew high above the tree-tops, but the other, being wounded, was unable to follow its companion; I darted off in pursuit, making sure of bagging it. The poor bird reached the ground and tried hard to run; I was not more than fifty paces from it, when a tiger-cat, with a black coat, bounded forward, and, seizing it, disappeared before I had time to recover from my surprise. The marauder was abused as a thief and a rogue by l'Encuerado, who had been a witness of this misfortune. Lucien examined the pheasant, which was almost as big as a turkey; but its sombre plumage did not at all answer to the magnificent idea which the boy had formed of this bird. He thought that the head was much too small for the body, and its naked and warty cheeks led him to observe that the pheasant had the appearance of having put on two plasters of tortoise-skin, a remark which was certainly well founded. With regard to the beautiful and many-colored pheasant-species peculiar to Asia and Africa, Mexico possesses none of them, so far, at least, as I know.

About two o'clock in the afternoon, Lucien remarked that the trees grew farther apart, which was a sign that we were approaching an open glade or the foot of a mountain. Sumichrast made the boy walk in front as leader—a reward for the sharpness of his eyes. Proud of this duty, our little guide led us to an opening edged with a rampart of wood at a short distance off.

"Halt!" cried I.

The butts of the guns were dropped upon the ground at this order; our hut was soon constructed, and l'Encuerado immediately afterwards busied himself preparing our meal.

Sumichrast, who, from the state of his hand, was condemned to idleness, remained with the Indian, while I proceeded, in company with Gringalet and Lucien, to reconnoitre the vicinity of our bivouac. Almost immediately, a yoloxochitl, a species of magnolia, met our eyes. I called l'Encuerado, who climbed the tree in order to throw us down some of its beautiful sweet-smelling flowers; they are externally of a pinkish-white color, yellow on the inside, and the petals, before they are full-blown, assume the form of a cross, and afterwards that of a splendid star. The Indian did not fail to remind us that an infusion of the glittering leaves of the yoloxochitl is a remedy against diarrhoea, and that its flowers, as their shape indicates, cure palpitation of the heart. A little farther on we recognized a nutmeg-tree, a shrub about ten feet in height, and covered with half-formed fruit. The nutmeg is not cultivated in Mexico, and the tree that produces it is rather rare. The Indians, however, use an enormous quantity of the Molucca nutmegs, either as a remedy or as a condiment—nutmegs, camphor, and asafoetida being the principal Indian remedies. I next pointed out to my young companion a plant named the blue herb, the leaves of which stain the water in which they are soaked with a lovely azure tinge. In Mexico a variety of this vegetable is cultivated, in order to extract from it the coloring matter commonly known under the name of indigo.

"But how do they manage," asked Lucien, "to obtain from a plant those dark-blue stones that I have seen sold in the market?"

"About the month of March," I answered, "are gathered the fresh leaves of the indigo-plant, which is one of the leguminous family, and pound them in mortars made out of the trunks of trees. The sap which results from these leaves, when subjected to a heavy pressure, is of a greenish tinge, and sometimes even colorless; it does not become blue until after fermentation in the open air. The Indians then boil it in an immense copper, and, the water evaporating, the indigo is left in the form of a soft and gelatinous paste, which is subsequently dried in the sun."

On approaching the foot of the mountain, I found that it would be impossible for us to climb it the next day, the slope being too steep. I sat down on the trunk of a fallen tree, when I detected a very decided smell of roses. Under the bark of a log esquina Lucien had discovered five or six beautiful insects of an azure-blue color, with red feet; these insects are very common in the sandy soils of Tehuacan, and are used by the ladies of that district to perfume their linen. Delighted at this discovery, Lucien continued his search, hoping to find some more specimens which he intended to take to his mother. He was kneeling down and working energetically, when he pointed out to me an enormous caterpillar.

It was of an emerald-green color, and had on its back a row of little projections like small trees, symmetrically arranged. These were of a brilliant red, terminating in shoots the same color as the animal's body.

"What a curious creature!" cried Lucien; "it looks as if it carried a garden on its back; what use are all these bushes?"

"It is not known, and it is a curious fact that the butterfly which springs from the caterpillar shows no trace of all this strangely-arranged hair."

"Will a butterfly come from this caterpillar?"

"Yes, certainly; all butterflies lay eggs, from which proceed caterpillars, which generally destroy the plants on which they are hatched. When arrived at maturity, the caterpillar spins a cocoon of silk, more or less fine, in the centre of which it incloses itself. It is then called a chrysalis. In this cocoon the butterfly is formed, either white or black, yellow or green, and there it remains inactive and imprisoned, like a baby in swadding-clothes. In spring it perforates its silken prison, and soon makes its escape a splendid butterfly, subsisting upon the juices of the flowers obtained through its proboscis. Surely you were not ignorant of all these transformations?"

"I thought that they only took place in silk-worms."

"Well, now you are undeceived; all caterpillars and all butterflies are subject to them; but there are few caterpillars which spin so valuable a cocoon as the silk-worm. Moreover, some bury themselves in the earth; while others hide in the middle of a leaf, the edges of which they curl round so as to form a kind of bag, in which they are protected from the beaks of birds; again, some hollow out a shelter in the trunk of a tree, and line their abode with silk more or less fine. Thus, in every case, the chrysalis waits patiently for the time when it will change from a worm into a butterfly, painted with the richest colors."

The subject was really an inexhaustible one, so I deferred the rest of my explanations to another day. Besides, l'Encuerado was loudly calling for us.