Time was when a rocky island, against which dashed the surges of the
Atlantic on the east and of the Pacific on the west, rose in solitude
from the wide-extending ocean where now the highlands of Guiana appear
above the surrounding plains. Not another spot of dry land was to be
found--so geologists affirm--between that point and the hills of Canada
on the north, or for thousands of miles southward towards the pole, over
that portion of the globe's surface now occupied by the vast continent
of America. Then, by slow degrees, the mountains of Brazil, with their
mines of glittering gems, appeared above the surface of the waters, amid
which huge reptile-like whales, ichthyosaurs, plesiosaurs, and
cetiosaurs buffeted the billows, and vast saurians, lizards, and
alligators, rivalling the elephant in bulk, and twice his length--such
as the megalosaurus, the iguanodon, and teleosaurus--crawled along the
slimy shores; while giant birds, with wide-spreading feet, stalked
across the newly-formed plains, or flew shrieking, with wings of
prodigious expanse skimming the glittering sea,--the lords paramount of
this lower world. At length the earth, convulsed by mighty throes in
the far-away west from north to south, began to cast up a long line of
rocky heights, now to sink, now to rise once more above the surface,--
till by degrees Pelion piled on Ossa--the vast chain of the Cordilleras
rose towards the skies, forming a mighty barrier between the two great
oceans.
On the eastern side, the waves of the Atlantic, beating continuously,
brought down into the shallow sea the debris from the newly-formed
rocks, gradually filling up the spaces between the already created
islands; and the streams, running down from the mountain heights, formed
the plan of the three great river-systems of the continent--the Orinoco
in the north, the Amazon in the centre, and La Plata in the south.
The Almighty Creator appears always to have worked by mechanical means
in preparing the globe for the habitation of man. There came then a
glacial period. Ponderous blocks of ice, resting not only on the
mountainsides, but extending over the plains, and acting the part of
mighty mill-stones, ground into impalpable powder the pieces of detached
rock of which the lower surface was composed, till a soil was formed
capable of producing a wondrous and varied vegetation to clothe that
Amazonian valley.
[The continent, Professor Agassiz supposes, extended at that time
between 200 and 300 miles further east than it does at present; but the
waters from the rapidly-melting mass of ice, forcing a passage towards
the ocean, carried a large portion away, leaving only certain tracts
which now appear in the form of islands at the mouths of the Amazon and
Orinoco.]
The work has been accomplished--the land prepared for its future
inhabitants! Mighty torrents fall from the lofty mountains, meandering
through the vast Amazonian plain. The age of winter has passed away.
The earth, warmed by the fires beneath and the hot sun above, steams
with vapour. Lofty trees rise from the alluvial soil. A dense mass of
underwood springs up; creepers innumerable hang from the boughs;
countless multitudes of insects have been called into existence--
termites, ants, and beetles--feeding on the leaves and herbage, and on
the giant trunks themselves. It might seem, numerous and voracious as
they are, that they must quickly destroy the clothing of verdure which
covers the soil. But they are not destined thus to triumph over the
wonderful work of the Creator's hand.
A law has been framed by which all things are beautifully and
wonderfully balanced. Monstrous animals have been created to place
bounds on their too great increase. Huge, awkward-looking beasts
covered with shaggy hair, with thick, short limbs, and powerful, sharp
claws bent inwards on soft pads--compelling them to move on the edge of
their paws--are busy with the clay-formed nests of the insects, dashing
them asunder, and devouring their active builders--taking in whole
armies at a mouthful.
See yonder huge creature, its body the size of a rhinoceros, covered
with a coat of armour, a convex oval shield, formed of hexagonal plates
wonderfully fitted to each other! It is an armadillo, the precursor of
a race still abounding in the land, though of diminutive form compared
to its mighty predecessor. See how, with powerful jaws, it crunches up
a fallen tree, perforated through and through by ants,--grinding the
papery partitions of the dry wood, licking in and chewing between its
wonderful cylinder teeth the whole mass into a black pulp!
"But lo! here are mightier creatures yet. See the vast mylodon, the
scelidothere, and the still more colossal megathere! Ponderous giants
these. The very forests seem to tremble under their stately stride.
Their immense bulk preponderates behind, terminating in a tail of
wonderful thickness and solidity. The head is mean, and awakens no
terror. The eye lacks lustre, and threatens no violence, though the
whole form betokens vast power; and the stout limbs are terminated by
the same thick, in-bent, sharp, hoofed claws. One of them approaches
that wide-spreading locust-tree. He gazes up at the huge mud-brown
structures that resemble hogsheads affixed to the forks of the branches,
and he knows that the luscious termites are filling them to overflowing.
His lips water at the tempting sight. Have them he must; but how?
That heavy stern-post of his was never made for climbing. Yet, see! he
rears himself up against the tree. Is he about to essay the scaling?
Not he. He knows his powers better. He gives it one embrace--one
strong hug, as if to test its thickness and hold upon the earth. Now he
is digging away below, scooping out the soft soil from between the
roots; and it is marvellous to note how rapidly he lays them bare with
those great shovel-like claws of his. Now he rears himself again;
straddles wide on his hind-feet, fixing the mighty claws deep in the
ground; plants himself firmly on his huge tail, as on the third foot of
a tripod, and once more grasps the tree. The enormous hind-quarters,
the limbs and the loins, the broad pelvis and thick spinal cord,
supplying abundant nervous energy to the swelling muscles inserted in
the ridged and keeled bones, all come into play as a _point d'appui_ for
the Herculean effort." [Gosse's "Natural History."]
"And now conceive the massive frame of the megathere convulsed with the
mighty wrestling, every vibrating fibre reacting upon its bony
attachments with the force of a hundred giants. Extraordinary must be
the strength and proportions of the tree if, when rocked to and fro to
right and left in such an embrace, it can long withstand the efforts of
its assailant. It yields! The roots fly up. The earth is scattered
wide upon the surrounding foliage. The tree comes down with a
thundering crash, cracking and snapping the great boughs like grass.
The frightened insects swarm out at every orifice, but the huge beast is
in upon them. With his sharp hoofs he tears apart the crusty walls of
the earth-nests, and licks out their living contents--fat pupae, eggs,
and all--rolling down the sweet morsels, half sucking, half chewing,
with a delighted gusto that repays him for all his mighty toil. While
this giant is absorbed in his juicy breakfast, see! there lounges along
his neighbour the macrauchen--equally massive, equally heavy, equally
vast, equally peaceful. The stranger resembles the huge rhinoceros,
elevated on much loftier limbs. But his most remarkable feature is the
enormously long neck, like that of the camel, but carried to the
altitude of that of the giraffe. Thus he thrusts his great muzzle into
the very centre of the leafy trees, and gathering with his prehensile
and flexible lip the succulent twigs and foliage, he too finds abundance
of food for his immense body in the teeming vegetation without intruding
on the supply of his fellows." [Owen on the "Mylodon."]
Emerging from the water appears a great head, with little piggish eyes
set wide apart, with immense muzzle and lips, and broad cheeks armed
with stiff projecting bristles--the sluggish toxodon. The creature
opens its cavernous mouth to seize a floating gourd; and now it tears up
the great fleshy arum roots from the clay bank, and grinding them to
pulp, sinks below to masticate its meal. Numberless other curious
creatures are roaming through the forest, or feeding on the banks; many
others, having run their destined course, disappear from the face of the
globe, to be replaced by a new creation of far less magnitude--the mild
llama, the savage jaguar, the nimble monkey with prehensile tail, the
ant-eater, arborial and terrestrial; the diminutive sloth, thick-skinned
tapir, alligators, turtles, and manatees; lizards, serpents; the
beautiful denizens of the air with superb plumage, numerous species of
humming-birds, gorgeous butterflies and beetles, vieing in their shining
hues with the rich gems hidden within the bowels of the earth.
It is of these, and of many others in wonderful variety; as well as of
their master--man--in his savage state; and of the curious trees and
shrubs, whose fruits afford him and the lower orders abundant
nourishment, that some outline sketches will now be given.