There is exciting chemical and physiological work to be done in Europe with the effects of New World poisons once we are sure that different poisons from different areas are properly distinguished. As far as our botanical knowledge about these poisonous plants is concerned we could sort out the differences only very slowly. Most Indians who make poison arrows completely ignore the nature of poisonous substances used by other tribes. A mystery surrounds the history of toxics and antidotes. Among wild Indians the preparation is the monopoly of piaches, who are priests, tricksters and doctors all at once; it is only with Indians from the missions that you can learn anything certain about such problematic matters. Centuries passed before any Europeans learned, thanks to Mutis's researches, that the bejuco del guaco is the most powerful antidote to snake bites, and which we were the first to describe botanically.

When we were about to leave the Can mission we had an argument with our Indian muleteers. To our amazement they had discovered that we were transporting skeletons from the Ataruipe caves, and were sure that the mule carrying 'the corpses of our ancient relatives' would die on the journey. All our precautions to hide the bones had been useless; nothing escapes the Carib's sense of smell. We needed the missionary's authority to be able to leave. We had to cross the Can river in a boat and ford, or perhaps I should say swim, the Río de Agua Clara. Quicksand on the bottom made the crossing during the floods very tiring. You are surprised to find such strong currents in flat land. We spent unpleasant nights out at Matagorda and Los Riecitos. Everywhere we saw the same things: small huts made of reed and roofed with leather, men on horseback with lances, guarding the cattle, semi-wild herds of horned cattle all the same color, fighting for grass with horses and mules. Not a goat or a sheep in these immense steppes!

If America does not occupy an important place in the history of mankind, and in the revolutions that have shattered the world, it does offer a wide field for a naturalist. Nowhere else does nature so vividly suggest general ideas on the cause of events, and their mutual interrelationships. I do not mean by this solely the overpowering vegetation and freshness of organic life, the different climates we experience as we climb the cordilleras and navigate those immense rivers, but also the geology and natural history of an unknown continent. A traveler can count himself lucky if he has taken advantage of his travels by adding new facts to the mass of those previously discovered!

These scattered features of the countryside, this trait of solitude and grandeur, characterizes the course of the Orinoco, one of the greatest New World rivers. Everywhere water, like land, displays its unique characteristics. The Orinoco bed has no similarities with the Meta, Guaviare, Río Negro or Amazon beds. These differences do not depend solely on the width or speed of the current; they derive from a combination of relations easier to grasp on the spot than to define precisely. In the same way, the shape of the waves, the color of the water, the kind of sky and clouds, all help a navigator guess whether he is in the Atlantic, the Mediterranean or in the equinoctial part of the Pacific.

Experience has shown that the mild climate and light air of this place are very favorable to the cultivation of the coffee tree, which, as is known, prefers altitudes. The Capuchin father superior, an active, educated man, introduced this new plant into the province. Before, indigo was cultivated in Caripe, but this plant, which needs plenty of heat, gave off so little dye that its cultivation had to be stopped. In the communal conuco we found many culinary plants, maize, sugar cane and a large area of coffee trees promising a rich harvest. In Caripe the conuco looks like a large, beautiful garden: Indians are obliged to work there every morning from six to ten. The Indian alcaldes (or magistrates) and alguaciles (or bailiffs) watch over these tasks. They are the high functionaries, who alone have the right to carry a walking-stick, and are appointed by the convent superiors. They are extremely proud of their status. Their pedantic and taciturn seriousness, their cold and mysterious air, and the zeal with which they fulfil their role in the church and communal assemblies make Europeans smile. We were still unaccustomed to these nuances of Indian temperament, found equally on the Orinoco, in Mexico and in Peru, among people totally different from each other in customs and language. The alcaldes came to the convent every day, less to deal with the monks about mission matters than to learn about the health of those travelers who had just arrived. As we gave them brandy, they visited us more than the monks thought proper.