[The "Naturalist in the Amazons" of Henry Walter Bates is a

work that has long held a deserved reputation for the closeness

and accuracy of its observations and the interest of its

narrative. The author, born at Leicester, England, in 1825,

accompanied the noted biologist, Alfred Russel Wallace, to

Brazil, the story of which journey is given in the work cited.

From it we extract some passages concerning the animal life of

that country, embracing the doings of the "leaf-cutting" ants

and the monkeys. Our selections begin in the suburbs of Para.]

In the gardens numbers of fine showy butterflies were seen. There were

two swallow-tailed species, similar in colors to the English _Papilio

machaon_, a white Pieris (_P. monuste_), and two or three species of

brimstone- and orange-colored butterflies, which do not belong, however,

to the same genus as our English species. In weedy places a beautiful

butterfly with eye-like spots on its wings was common, the _Junonia

lavinia_, the only Amazonian species which is at all nearly related to

our Vanessas, the Admiral and Peacock butterflies.

One day we made our first acquaintance with two of the most beautiful

productions of nature in this department,--namely, the _Helicopis

cupido_ and _endymion_. A little beyond our house one of the narrow

green lanes which I have already mentioned diverged from the mongabu

avenue, and led between enclosures overrun with a profusion of creeping

plants and glorious flowers down to a moist hollow, where there was a

public well and a picturesque nook, buried in a grove of mucaja

palm-trees. On the tree-trunks, walls, and palings grew a great quantity

of climbing Pothos plants, with large, glossy, heart-shaped leaves.

These plants were the resort of these two exquisite species, and we

captured a great number of specimens. They are of extremely delicate

texture. The wings are cream-colored; the hind pair have several

tail-like appendages, and are spangled beneath as if with silver. Their

flight is very slow and feeble; they seek the protected under surface of

the leaves, and in repose close their wings over the back, so as to

expose the brilliantly spotted under surface.

I will pass over the many orders and families of insects, and proceed at

once to the ants. These were in great numbers everywhere, but I will

mention here only two kinds. We were amazed at seeing ants an inch and a

quarter in length, and stout in proportion, marching in single file

through the thickets. These belonged to the species called _Dinoponera

grandis_. Its colonies consist of a small number of individuals, and are

established about the roots of slender trees. It is a stinging species,

but the sting is not so severe as in many of the smaller kinds. There

was nothing peculiar or attractive in the habits of this giant among the

ants. Another far more interesting species was the Sauba (_Oecodoma

cephalotes_). This ant is seen everywhere about the suburbs, marching to

and fro in broad columns. From its habit of despoiling the most valuable

cultivated trees of their foliage, it is a great scourge to the

Brazilians. In some districts it is so abundant that agriculture is

almost impossible, and everywhere complaints are heard of the terrible

pest....

In our first walks we were puzzled to account for large mounds of earth,

of a different color from the surrounding soil, which were thrown up in

the plantations and woods. Some of them were very extensive, being forty

yards in circumference, but not more than two feet in height. We soon

ascertained that these were the work of the Saubas, being the outworks

or domes which overlie and protect the entrances to their vast

subterranean galleries. On close examination I found the earth of which

they are composed to consist of very minute granules, agglomerated

with cement, and forming many rows of little ridges and turrets. The

difference in color from the superficial soil of the vicinity is owing

to their being formed of the under-soil, brought up from a considerable

depth.

It is very rarely that the ants are seen at work on these mounds; the

entrances seem to be generally closed; only now and then, when some

particular work is going on, are the galleries opened. The entrances are

small and numerous; in the larger hillocks it would require a great

amount of excavation to get at the main galleries; but I succeeded in

removing portions of the dome in smaller hillocks, and then I found that

the minor entrances converged, at the depth of about two feet, to one

broad, elaborately worked gallery or mine, which was four or five inches

in diameter.

The habit in the Sauba ant of clipping and carrying away immense

quantities of leaves has long been recorded in books on natural history.

When employed on this work their processions look like a multitude of

animated leaves on the march. In some places I found an accumulation of

such leaves, all circular pieces, about the size of a sixpence, lying on

the pathway, unattended by ants, and at some distance from the colony.

Such heaps are always found to be removed when the place is revisited

the next day. In course of time I had plenty of opportunities of seeing

them at work. They mount the trees in multitudes, the individuals being

all worker-miners. Each one places itself on the surface of a leaf, and

cuts with its sharp, scissor-like jaws, and by a sharp jerk detaches the

piece. Sometimes they let the leaf drop to the ground, where a little

heap accumulates until carried away by another relay of workers; but

generally each marches off with the piece it has operated upon, and, as

all take the same road to their colony, the path they follow becomes in

a short time smooth and bare, looking like the impression of a

cart-wheel through the herbage.

It is a most interesting sight to see the vast host of busy diminutive

laborers occupied on this work. Unfortunately, they choose cultivated

trees for their purpose. This ant is quite peculiar to tropical America,

as is the entire genus to which it belongs. It sometimes despoils the

young trees of species growing wild in its native forests; but it seems

to prefer, when within reach, plants imported from other countries, such

as the coffee- and orange-trees.... The heavily-laden workers, each

carrying its segment of leaf vertically, the lower edge secured in its

mandibles, troop up and cast their burdens on the hillock; another relay

of laborers place the leaves in position, covering them with a layer of

earthy granules, which are brought one by one from the soil beneath.

The underground abodes of this wonderful ant are known to be very

extensive. The Rev. Hamlet Clark has related that the Sauba of Rio de

Janeiro, a species closely allied to ours, has excavated a tunnel under

the bed of the river Parahyba at a place where it is as broad as the

Thames at London Bridge. At the Magoary rice-mills, near Para, these

ants once pierced the embankment of a large reservoir; the great body

of water which it contained escaped before the damage could be repaired.

In the Botanic Gardens at Para an enterprising French gardener tried all

he could think of to extirpate the Sauba. With this object he made fires

over some of the main entrances to their colonies, and blew the fumes of

sulphur down the galleries by means of bellows. I saw the smoke issue

from a great number of outlets, one of which was seventy yards distant

from the place where the bellows were used. This shows how extensively

the underground galleries are ramified.

Besides injuring and destroying young trees by despoiling them of their

foliage, the Sauba ant is troublesome to the inhabitants from its habit

of plundering the stores of provisions in houses at night, for it is

even more active at night than in the daytime. At first I was inclined

to discredit the stories of their entering habitations and carrying off

grain by grain the farinha or mandioca meal, the bread of the poorer

classes of Brazil. At length, while residing at an Indian village on the

Tapajos, I had ample proof of the fact. One night my servant woke me

three or four times before sunrise by calling out that the rats were

robbing the farinha baskets. The article at that time was scarce and

dear. I got up, listened, and found the noise very unlike that made by

rats. So I took the light and went into the store-room, which was close

to my sleeping-place. I there found a broad column of Sauba ants,

consisting of thousands of individuals, as busy as possible, passing to

and fro between the door and my precious baskets. Most of those passing

outward were laden each with a grain of farinha, which was, in some

cases, larger and many times heavier than the bodies of the carriers.

Farinha consists of grains of similar size and appearance to the tapioca

of our shops; both are products of the same root, tapioca being the

pure starch, and farinha the starch mixed with woody fibre, the latter

ingredient giving it a yellowish color. It was amusing to see some of

the dwarfs, the smallest members of their family, staggering along,

completely hidden under their load. The baskets, which were on a high

table, were entirely covered with ants, many hundreds of whom were

employed in snipping the dry leaves which served as lining. This

produced the rustling sound which had at first disturbed us. My servant

told me that they would carry off the whole contents of the two baskets

(about two bushels) in the course of the night if they were not driven

off, so we tried to exterminate them by killing them with our wooden

clogs. It was impossible, however, to prevent fresh hosts coming in as

fast as we killed their companions. They returned the next night, and I

was then obliged to lay trains of gun-powder along their line and blow

them up. This, repeated many times, at last seemed to intimidate them,

for we were free from their visits during the remainder of my residence

at the place.

What they did with the hard dry grains of mandioca I was never able to

ascertain, and cannot even conjecture. The meal contains no gluten, and

therefore would be useless as cement. It contains only a small relative

portion of starch, and, when mixed with water, it separates and

falls away like so much earthy matter. It may serve as food for the

subterranean workers. But the young or larvae of ants are usually fed

by juices secreted by the worker-nurses.

[Leaving the ants with this example of their curious habits, we

shall proceed with the author's description of Brazilian

monkeys.]

I have already mentioned that monkeys were rare in the immediate

vicinity of Para. I met with three species only in the forest near the

city; they are shy animals and avoid the neighborhood of towns, where

they are subject to much persecution by the inhabitants, who kill them

for food. The only kind which I saw frequently was the little _Midas

ursulus_, one of the Marmosets, a family peculiar to tropical America,

and differing in many essential points of structure and habits from all

other apes. They are small in size, and more like squirrels than true

monkeys in their manner of climbing. The nails, except those of the hind

thumbs, are long and claw-shaped like those of squirrels, and the thumbs

of the fore extremities, or hands, are not opposable to the other

fingers. I do not mean to convey that they have a near relationship to

squirrels, which belong to the Rodents, an inferior order of mammals;

their resemblance to those animals is merely a superficial one. They

have two molar teeth less in each jaw than the Cebidae, the other family

of American monkeys; they agree with them, however, in the sideway

position of the nostrils, a character which distinguishes both from all

the monkeys of the Old World. The body is long and slender, clothed with

soft hairs, and the tail, which is nearly twice the length of the trunk,

is not prehensile. The hind limbs are much larger in volume than the

anterior pair.

The _Midas ursulus_ is never seen in large flocks; three or four is

the greatest number observed together. It seems to be less afraid of

the neighborhood of man than any other monkey. I sometimes saw it in

the woods which border the suburban streets, and once I espied two

individuals in a thicket behind the English consul's house at Nazareth.

Its mode of progression along the main boughs of the lofty trees is like

that of squirrels; it does not ascend to the slender branches, or take

those wonderful flying leaps which the Cebidae do, whose prehensile tails

and flexible hands fit them for such headlong travelling. It confines

itself to the larger boughs and trunks of trees, the long nails being of

great assistance to the creature, enabling it to cling securely to the

bark; and it is often seen passing rapidly round the perpendicular

cylindrical trunks. It is a quick, restless, timid little creature, and

has a great share of curiosity, for when a person passes by under the

trees along which a flock is running, they always stop for a few moments

to have a stare at the intruder.

In Para _Midas ursulus_ is often seen in a tame state in the houses of

the inhabitants. When full grown it is about nine inches long,

independently of the tail, which measures fifteen inches. The fur is

thick, and black in color, with the exception of a reddish-brown streak

down the middle of the back. When first taken, or when kept tied up, it

is very timid and irritable. It will not allow itself to be approached,

but keeps retreating backward when any one attempts to coax it. It is

always in a querulous humor, uttering a twittering, complaining noise;

its dark, watchful eyes, expressive of distrust, observant of every

movement which takes place near it. When treated kindly, however, as it

generally is in the houses of the natives, it becomes very tame and

familiar. I once saw one as playful as a kitten, running about the house

after the negro children, who fondled it to their hearts' content. It

acted somewhat differently towards strangers, and seemed not to like

them to sit in the hammock which was slung in the room, leaping up,

trying to bite, and otherwise annoying them.

It is generally fed on sweet fruits, such as the banana, but it is also

fond of insects, especially soft-bodied spiders and grasshoppers, which

it will snap up with eagerness when within reach. The expression of

countenance in these small monkeys is intelligent and pleasing. This is

partly owing to the open facial angle, which is given as one of sixty

degrees; but the quick movements of the head, and the way they have of

inclining it to one side when their curiosity is excited, contribute

very much to give them a knowing expression. Anatomists who have

dissected species of Midas tell us that the brain is of a very low type

as far as the absence of convolutions goes, the surface being as smooth

as that of a squirrel's. I should conclude at once that this character

is an unsafe guide in judging of the mental qualities of these animals;

in mobility of expression of countenance, intelligence, and general

manners these small monkeys resemble the higher apes far more than they

do any rodent animal with which I am acquainted.

On the upper Amazon I once saw a tame individual of the _Midas

leoninus_, a species first described by Humboldt, which was still more

playful and intelligent than the one just described. This rare and

beautiful little monkey is only seven inches in length, exclusive of the

tail. It is named leoninus on account of the long brown mane which

depends from the neck, and which gives it very much the appearance of a

diminutive lion. In the house where it was kept it was familiar with

every one; its greatest pleasure seemed to be to climb about the bodies

of different persons who entered. The first time I went in, it ran

across the room straightway to the chair on which I sat down and climbed

up to my shoulder; arrived there, it turned round and looked into my

face, showing its little teeth, and chattering, as though it would say,

"Well, and how do you do?" It showed more affection towards its master

than towards strangers, and would climb up to his head a dozen times in

the course of an hour, making a great show every time of searching there

for certain animalcula.

Isidore Geoffrey St. Hilaire relates of a species of this genus that it

distinguished between different objects depicted on an engraving. M.

Audouin showed it the portraits of a cat and a wasp; at these it became

much terrified; whereas at the sight of a figure of a grasshopper or

beetle it precipitated itself on the picture, as if to seize the objects

there represented.

Although monkeys are now rare in a wild state near Para, a great number

may be seen semi-domesticated in the city. The Brazilians are fond of

pet animals. Monkeys, however, have not been known to breed in captivity

in this country. I counted in a short time thirteen different species

while walking about the Para streets, either at the doors or windows of

houses, or in the native canoes. Two of them I did not meet with

afterwards in any other part of the country. One of these was the

well-known _Hapale jacchus_, a little creature resembling a kitten,

banded with black and gray all over the body and tail, and having a

fringe of long white hairs surrounding the ears. It was seated on the

shoulder of a young mulatto girl, as she was walking along the street,

and I was told had been captured in the island of Marajo. The other was

a species of Cebus, with a remarkably large head. It had ruddy brown

fur, paler on the face, but presenting a blackish tuft on the top of the

forehead....

The only monkeys I observed at Cameta were the Couxio (_Pithecia

satanas_), a large species, clothed with long brownish black hair, and

the tiny _Midas argentatus_. The Couxio has a thick bushy tail; the hair

of the head sits on it like a cap, and looks as if it had been carefully

combed. It inhabits only the most retired parts of the forest, on the

terra firma, and I observed nothing of its habits. The little _Midas

argentatus_ is one of the rarest of the American monkeys. I have not

heard of its being found anywhere except near Cameta. I once saw three

individuals together running along a branch in a cacao grove near

Cameta; they looked like white kittens: in their motions they resembled

precisely the _Midas ursulus_ already described.

I saw afterwards a pet animal of this species, and heard that there were

many so kept, and that they were esteemed as choice treasures. The one I

saw was full grown, but it measured only seven inches in length of body.

It was covered with long white, silky hairs, the tail was blackish, and

the face nearly naked and flesh-colored. It was a most timid and

sensitive little thing. The woman who owned it carried it constantly in

her bosom, and no money would induce her to part with her pet. She

called it Mico. It fed from her mouth and allowed her to fondle it

freely, but the nervous little creature would not permit strangers to

touch it. If any one attempted to do so it shrank back, the whole body

trembling with fear, and its teeth chattered, while it uttered its

tremulous frightened tones. The expression of its features was like that

of its more robust brother _Midas ursulus_; the eyes, which were black,

were full of curiosity and mistrust, and it always kept them fixed on

the person who attempted to advance towards it.

In the orange groves and other parts humming-birds were plentiful, but I

did not notice more than three species. I saw a little pigmy belonging

to the genus Phaethornis one day in the act of washing itself in a brook.

It was perched on a thin branch, whose end was under water. It dipped

itself, then fluttered its wings and pruned its feathers, and seemed

thoroughly to enjoy itself alone in the shady nook which it had

chosen,--a place overshadowed by broad leaves of ferns and Heliconiae. I

thought as I watched it that there was no need for poets to invent elves

and gnomes while nature furnishes us with such marvellous little sprites

ready to hand.

THE MONARCHS OF THE ANDES.

JAMES ORTON.

[The story of the Andes and the great river to which this

mountain-chain gives birth has never been better told than in

Orton's "The Andes and the Amazon," from which we select the

following description of Chimborazo and its mountain neighbors.

James Orton, born at Seneca Falls, New York, in 1830, became a

Congregationalist clergyman, and in 1867 headed an exploring

expedition to South America. In 1873 he sought that continent

again, and died on Lake Titicaca, September 24, 1877.]

Coming up from Peru through the cinchona forests of Loja, and over the

barren hills of Assuay, the traveller reaches Riobamba seated on the

threshold of magnificence,--like Damascus, an oasis in a sandy plain,

but, unlike the Queen of the East, surrounded with a splendid retinue of

snowy peaks that look like icebergs floating in a sea of clouds.

On our left is the most sublime spectacle in the New World. It is a

majestic pile of snow, its clear outline on the deep blue sky describing

the profile of a lion in repose. At noon the vertical sun, and the

profusion of light reflected from the glittering surface, will not allow

a shadow to be cast on any part, so that you can easily fancy the figure

is cut out of a mountain of spotless marble. This is Chimborazo,--yet

not the whole of it,--you see but a third of the great giant. His feet

are as eternally green as his head is everlastingly white; but they are

far away beneath the banana and cocoanut palms of the Pacific coast.

Rousseau was disappointed when he first saw the sea; and the first

glimpse of Niagara often fails to meet one's expectations. But

Chimborazo is sure of a worshipper the moment its overwhelming grandeur

breaks upon the traveller. You feel that you are in the presence-chamber

of the monarch of the Andes. There is sublimity in his kingly look of

which the ocean might be proud.

"All that expands the spirit, yet appeals,

Gathers around this summit, as if to show

How earth may pierce to heaven, yet leave vain man below."

[Illustration: THE MONARCHS OF THE ANDES]

Well do we remember our disappointment as we stood before that wonder of

the world,--St. Peter's. We mounted the pyramid of steps and looked up,

but were not overcome by the magnificence. We read in our guide-book

that the edifice covers eight acres, and to the tip-top of the cross is

almost five hundred feet; that it took three hundred and fifty years and

twelve successive artists to finish it and an expenditure of fifty

million dollars, and now costs thirty thousand dollars per annum to keep

it in repair, still we do not appreciate its greatness. We pushed aside

the curtain and walked in,--walked a day's journey across the transept

and up and down the everlasting nave, and yet continued heterodox. We

tried hard to believe it was very vast and sublime, and we knew we ought

to feel its grandeur, but somehow we did not. Then we sat down by the

Holy of Holies, and there we were startled into a better judgment by the

astounding fact that the Cathedral of St. Paul--the largest edifice in

Great Britain--could stand upright, spire, dome, body, and all, inside

of St. Peter's! that the letters of the inscription which run round the

_base_ of the dome, though apparently but an inch, are in reality six

feet high! Then for the first time the scales fell from our eyes, the

giant building began to grow; higher and higher still it rose, longer

and deeper it expanded, yet in perfect proportions; the colossal

structure, now a living temple, put on its beautiful garments and the

robe of majesty. And that dome! the longer we looked at it the vaster

it grew, till finally it seemed to be a temple not made with hands; the

spacious canopy became the firmament; the mosaic figures of cherubim and

seraphim were endowed with life; and as we fixed our eyes on the zenith

where the Almighty is represented in glory, we thought we had the vision

of Stephen. Long we gazed upward into this heaven of man's creation, and

gazed again till we were lost in wonder.

With the World's Great Travellers, Volume 2 · 第 18 / 20 段