The extreme purity of the black waters is proved by their limpidity, their transparency, and the clearness with which they reflect the images and colours of surrounding objects. The smallest fish are visible in them at a depth of twenty or thirty feet; and most commonly the bottom of the river may be distinguished, which is not a yellowish or brownish mud, like the colour of the water, but a quartzose and granitic sand of dazzling whiteness. Nothing can be compared to the beauty of the banks of the Atabapo. Loaded with plants, among which rise the palms with feathery leaves; the banks are reflected in the waters, and this reflex verdure seems to have the same vivid hue as that which clothes the real vegetation. The surface of the fluid is homogeneous, smooth, and destitute of that mixture of suspended sand and decomposed organic matter, which roughens and streaks the surface of less limpid rivers.
On quitting the Orinoco, several small rapids must be passed, but without any appearance of danger. Amid these raudalitos, according to the opinion of the missionaries, the Rio Atabapo falls into the Orinoco. I am however disposed to think that the Atabapo falls into the Guaviare. The Rio Guaviare, which is much wider than the Atabapo, has white waters, and in the aspect of its banks, its fishing-birds, its fish, and the great crocodiles which live in it, resembles the Orinoco much more than that part of the Atabapo which comes from the Esmeralda. When a river springs from the junction of two other rivers, nearly alike in size, it is difficult to judge which of the two confluent streams must be regarded as its source. The Indians of San Fernando affirm that the Orinoco rises from two rivers, the Guaviare and the Rio Paragua. They give this latter name to the Upper Orinoco, from San Fernando and Santa Barbara to beyond the Esmeralda, and they say that the Cassiquiare is not an arm of the Orinoco, but of the Rio Paragua. It matters but little whether or not the name of Orinoco be given to the Rio Paragua, provided we trace the course of these rivers as it is in nature, and do not separate by a chain of mountains, (as was done previously to my travels,) rivers that communicate together, and form one system. When we would give the name of a large river to one of the two branches by which it is formed, it should be applied to that branch which furnishes most water. Now, at the two seasons of the year when I saw the Guaviare and the Upper Orinoco or Rio Paragua (between the Esmeralda and San Fernando), it appeared to me that the latter was not so large as the Guaviare. Similar doubts have been entertained by geographers respecting the junction of the Upper Mississippi with the Missouri and the Ohio, the junction of the Maranon with the Guallaga and the Ucayale, and the junction of the Indus with the Chunab (Hydaspes of Cashmere) and the Gurra, or Sutlej.* (* The Hydaspes is properly a tributary stream of the Chunab or Acesines. The Sutlej or Hysudrus forms, together with the Beyah or *** Gurra. These are the beautiful regions of the *** celebrated from the time of Alexander to the ***) To avoid embroiling farther a nomenclature of rivers so arbitrarily fixed, I will not propose new denominations. I shall continue, with Father Caulin and the Spanish geographers, to call the river Esmeralda the Orinoco, or Upper Orinoco; but I must observe that if the Orinoco, from San Fernando de Atabapo as far as the delta which it forms opposite the island of Trinidad, were regarded as the continuance of the Rio Guaviare, and if that part of the Upper Orinoco between the Esmeralda and the mission of San Fernando were considered a tributary stream, the Orinoco would preserve, from the savannahs of San Juan de los Llanos and the eastern declivity of the Andes to its mouth, a more uniform and natural direction, that from south-west to north-east.
The Rio Paragua, or that part of the Orinoco east of the mouth of the Guaviare, has clearer, more transparent, and purer water than the part of the Orinoco below San Fernando. The waters of the Guaviare, on the contrary, are white and turbid; they have the same taste, according to the Indians (whose organs of sense are extremely delicate and well practised), as the waters of the Orinoco near the Great Cataracts. "Bring me the waters of three or four great rivers of these countries," an old Indian of the mission of Javita said to us; "on tasting each of them I will tell you, without fear of mistake, whence it was taken; whether it comes from a white or black river; the Orinoco or the Atabapo, the Paragua or the Guaviare." The great crocodiles and porpoises (toninas) which are alike common in the Rio Guaviare and the Lower Orinoco, are entirely wanting, as we were told, in the Rio Paragua (or Upper Orinoco, between San Fernando and the Esmeralda). These are very remarkable differences in the nature of the waters, and the distribution of animals. The Indians do not fail to mention them, when they would prove to travellers that the Upper Orinoco, to the east of San Fernando, is a distinct river which falls into the Orinoco, and that the real origin of the latter must be sought in the sources of the Guaviare.
The astronomical observations made in the night of the 25th of April did not give me the latitude with satisfactory precision. The latitude of the mission of San Fernando appeared to me to be 4 degrees 2 minutes 48 seconds. In Father Caulin's map, founded on the observations of Solano made in 1756, it is 4 degrees 1 minute. This agreement proves the justness of a result which, however, I could only deduce from altitudes considerably distant from the meridian. A good observation of the stars at Guapasoso gave me 4 degrees 2 minutes for San Fernando de Atabapo. I was able to fix the longitude with much more precision in my way to the Rio Negro, and in returning from that river. It is 70 degrees 30 minutes 46 seconds (or 4 degrees 0 minutes west of the meridian of Cumana).
On the 26th of April we advanced only two or three leagues, and passed the night on a rock near the Indian plantations or conucos of Guapasoso. The river losing itself by its inundations in the forests, and its real banks being unseen, the traveller can venture to land only where a rock or a small table-land rises above the water. The granite of those countries, owing to the position of the thin laminae of black mica, sometimes resembles graphic granite; but most frequently (and this determines the age of its formation) it passes into a real gneiss. Its beds, very regularly stratified, run from south-west to north-east, as in the Cordillera on the shore of Caracas. The dip of the granite-gneiss is 70 degrees north-west. It is traversed by an infinite number of veins of quartz, which are singularly transparent, and three or four, and sometimes fifteen inches thick. I found no cavity (druse), no crystallized substance, not even rock-crystal; and no trace of pyrites, or any other metallic substance. I enter into these particulars on account of the chimerical ideas that have been spread ever since the sixteenth century, after the voyages of Berreo and Raleigh,* "on the immense riches of the great and fine empire of Guiana." (* Raleigh's work bears the high sounding title of The Discovery of the large, rich, and beautiful Empire of Guiana, London 1596. See also Raleghi admiranda Descriptio Regni Guianae, auri abundantissimi, Hondius Noribergae 1599.)
The river Atabapo presents throughout a peculiar aspect; you see nothing of its real banks formed by flat lands eight or ten feet high; they are concealed by a row of palms, and small trees with slender trunks, the roots of which are bathed by the waters. There are many crocodiles from the point where you quit the Orinoco to the mission of San Fernando, and their presence indicates that this part of the river belongs to the Rio Guaviare and not to the Atabapo. In the real bed of the latter river, above the mission of San Fernando, there are no crocodiles: we find there some bavas, a great many fresh-water dolphins, but no manatees. We also seek in vain on these banks for the thick-nosed tapir, the araguato, or great howling monkey, the zamuro, or Vultur aura, and the crested pheasant, known by the name of guacharaca. Enormous water-snakes, in shape resembling the boa, are unfortunately very common, and are dangerous to Indians who bathe. We saw them almost from the first day we embarked, swimming by the side of our canoe; they were at most twelve or fourteen feet long. The jaguars of the banks of the Atabapo and the Temi are large and well fed; they are said, however, to be less daring than the jaguars of the Orinoco.
The night of the 27th was beautiful; dark clouds passed from time to time over the zenith with extreme rapidity. Not a breath of wind was felt in the lower strata of the atmosphere; the breeze was at the height of a thousand toises. I dwell upon this peculiarity; for the movement we saw was not produced by the counter-currents (from west to east) which are sometimes thought to be observed in the torrid zone on the loftiest mountains of the Cordilleras; it was the effect of a real breeze, an east wind. We left the conucos of Guapasoso at two o'clock; and continued to ascend the river toward the south, finding it (or rather that part of its bed which is free from trees) growing more and more narrow. It began to rain toward sunrise. In these forests, which are less inhabited by animals than those of the Orinoco, we no longer heard the howlings of the monkeys. The dolphins, or toninas, sported by the side of our boat. According to the relation of Mr. Colebrooke, the Delphinus gangeticus, which is the fresh-water porpoise of the Old World, in like manner accompanies the boats that go up towards Benares; but from Benares to the point where the Ganges receives the salt waters is only two hundred leagues, while from the Atabapo to the mouth of the Orinoco is more than three hundred and twenty.
About noon we passed the mouth of the little river Ipurichapano on the east, and afterwards the granitic rock, known by the name of Piedra del Tigre. Between the fourth and fifth degrees of latitude, a little to the south of the mountains of Sipapo, we reach the southern extremity of that chain of cataracts, which I proposed, in a memoir published in 1800, to call the Chain of Parima. At 4 degrees 20 minutes it stretches from the right bank of the Orinoco toward the east and east-south-east. The whole of the land extending from the mountains of the Parima towards the river Amazon, which is traversed by the Atabapo, the Cassiquiare, and the Rio Negro, is an immense plain, covered partly with forests, and partly with grass. Small rocks rise here and there like castles. We regretted that we had not stopped to rest near the Piedra del Tigre; for on going up the Atabapo we had great difficulty to find a spot of dry ground, open and spacious enough to light a fire, and place our instrument and our hammocks.
On the 28th of April, it rained hard after sunset, and we were afraid that our collections would be damaged. The poor missionary had his fit of tertian fever, and besought us to re-embark immediately after midnight. We passed at day-break the Piedra and the Raudalitos* (* The rock and little cascades.) of Guarinuma. The rock is on the east bank; it is a shelf of granite, covered with psora, cladonia, and other lichens. I could have fancied myself transported to the north of Europe, to the ridge of the mountains of gneiss and granite between Freiberg and Marienberg in Saxony. The cladonias appeared to me to be identical with the Lichen rangiferinus, the L. pixidatus, and the L. polymorphus of Linnaeus. After having passed the rapids of Guarinuma, the Indians showed us in the middle of the forest, on our right, the ruins of the mission of Mendaxari, which has been long abandoned. On the east bank of the river, near the little rock of Kemarumo, in the midst of Indian plantations, a gigantic bombax* (* Bombax ceiba.) attracted our curiosity. We landed to measure it; the height was nearly one hundred and twenty feet, and the diameter between fourteen and fifteen. This enormous specimen of vegetation surprised us the more, as we had till then seen on the banks of the Atabapo only small trees with slender trunks, which from afar resembled young cherry-trees. The Indians assured that these small trees do not form a very extensive group. They are checked in their growth by the inundations of the river; while the dry grounds near the Atabapo, the Temi, and the Tuamini, furnish excellent timber for building. These forests do not stretch indefinitely to the east and west, toward the Cassiquiare and the Guaviare; they are bounded by the open savannahs of Manuteso, and the Rio Inirida. We found it difficult in the evening to stem the current, and we passed the night in a wood a little above Mendaxari; which is another granitic rock traversed by a stratum of quartz. We found in it a group of fine crystals of black schorl.
On the 29th, the air was cooler. We had no zancudos, but the sky was constantly clouded, and without stars. I began to regret the Lower Orinoco. We still advanced but slowly from the force of the current, and we stopped a great part of the day to seek for plants. It was night when we arrived at the mission of San Balthasar, or, as the monks style it, the mission of la divina Pastora de Balthasar de Atabapo. We were lodged with a Catalonian missionary, a lively and agreeable man, who displayed in these wild countries the activity that characterises his nation. He had planted a garden, where the fig-tree of Europe was found in company with the persea, and the lemon-tree with the mammee. The village was built with that regularity which, in the north of Germany, and in protestant America, we find in the hamlets of the Moravian brethren; and the Indian plantations seemed better cultivated than elsewhere. Here we saw for the first time that white and fungous substance which I have made known by the name of dapicho and zapis.* (* These two words belong to the Poimisano and Paragini tongues.) We immediately perceived that it was analogous to india-rubber; but, as the Indians made us understand by signs, that it was found underground, we were inclined to think, till we arrived at the mission of Javita, that the dapicho was a fossil caoutchouc, though different from the elastic bitumen of Derbyshire. A Pomisano Indian, seated by the fire in the hut of the missionary, was employed in reducing the dapicho into black caoutchouc. He had spitted several bits on a slender stick, and was roasting them like meat. The dapicho blackens in proportion as it grows soft, and becomes elastic. The resinous and aromatic smell which filled the hut, seemed to indicate that this coloration is the effect of the decomposition of a carburet of hydrogen, and that the carbon appears in proportion as the hydrogen burns at a low heat. The Indian beat the softened and blackened mass with a piece of brazil-wood, formed at one end like a club; he then kneaded the dapicho into balls of three or four inches in diameter, and let it cool. These balls exactly resemble the caoutchouc of the shops, but their surface remains in general slightly viscous. They are used at San Balthasar in the Indian game of tennis, which is celebrated among the inhabitants of Uruana and Encaramada; they are also cut into cylinders, to be used as corks, and are far preferable to those made of the bark of the cork-tree.