The ground of the island rises to form an amphitheatre and, as in Peru and Mexico, contains in miniature all the possible climates, from African heat to alpine cold. (14) The mean temperatures of Santa Cruz, the port of Orotava, Orotava itself and La Laguna form a descending series. In southern Europe the change of seasons is too strongly felt to offer the same advantages. Tenerife on the other hand, on the threshold of the Tropics and a few days' journey from Spain, benefits from a good part of what nature has lavished in the Tropics. Its flora include the beautiful and imposing bananas and palms. He who is able to feel nature's beauty finds in this precious island a far more effective remedy than the climate. Nowhere else in the world seems more appropriate to dissipate melancholy and restore peace to troubled minds than Tenerife and Madeira. These effects are due not only to the magnificent situation and to the purity of air, but above all to the absence of slavery, which so deeply revolts us in all those places where Europeans have brought what they call their 'enlightenment and their 'commerce' to their colonies

Among the races making up the Venezuelan population blacks are important - seen both compassionately for their wretched state, and with fear due to possible violent uprisings - because they are concentrated in limited areas, not so much because of their total number. Of the 60, slaves in the Venezuelan provinces, 40, live in the province of Caracas. In the plains there are only some 4, to 5,000, spread around the haciendas and looking after the cattle. The number of freed slaves is very high as Spanish legislation and custom favor emancipation. A slave-owner cannot deny a slave his freedom if he can pay 300 piastres, (69) even if this would have cost the slave-owner double because of the amount of work the slave might have done.

How hard it is to express the pleasure we felt arriving at Angostura, capital of Spanish Guiana. The discomforts felt at sea in small boats cannot be compared to those felt under a burning sky, surrounded by swarms of mosquitoes, cramped for months on end in a pirogue that does not let you budge an inch because of its delicate balance. In seventy-five days we had traveled along the five great rivers of the Apure, the Orinoco, the Atabapo, the Rio Negro and the Casiquiare for 500 leagues, rarely sighting inhabited places. Although, after our life in the jungle, our clothes were not in good order, we hurried to present ourselves to the provincial governor Don Felipe de Ynciarte. He received us in the most considerate way, and lodged us in the house of the Secretary of the Intendencia. Coming from such deserted places we were struck by the bustle of a town of only 6, people. We appreciated what work and trade can do to make life more civilized. Modest houses seemed luxurious: anybody who spoke to us seemed witty. Long deprivations make small things pleasurable: how can l express the joy we felt on seeing wheat bread on the governor's table. I may be wrong in repeating what all travelers feel after long journeys. You enjoy finding yourself back in civilization, though it can be short-lived if you have learned to feel deeply the marvels of tropical nature. The memory of what you endured soon fades; as you reach the coasts inhabited by European colonists you begin to plan to make another journey into the interior.

April 18th. We set off at three in the morning in order to reach the cataracts known as the Raudal de Guahibos before nightfall. We moored at the mouth of the Tomo river, and the Indians camped on the shore. At five in the afternoon we reached the raudal. It was extremely difficult to row against the current and the mass of water rushing over a bank several feet high. One Indian swam to a rock that divided the cataract in two, tied a rope to it, and began hauling our boat until, halfway up, we were able to get off with our instruments, dried plants and bare provisions. Surprisingly we found that above the natural wall over which the river fell there was a piece of dry land. Our position in the middle of the cataract was strange but without danger. Our companion, the missionary father, had one of his fever fits, and to relieve him we decided to make a refreshing drink. We had taken on board at Apures a mapire, or Indian basket, filled with sugar, lemons and grenadillas, or passion-fruit, which the Spaniards call parchas. As we had no bowl in which to mix the juices we poured river water into one of the holes in the rock with a tutuma, and then added the sugar and acid fruit juices. In a few seconds we had a wonderfully refreshing juice, almost a luxury in this wild spot, but necessity had made us more and more ingenious. After quenching our thirst we wanted to have a swim. Carefully examining the narrow rocky dyke on which we sat, we saw that it formed little coves where the water was clear and still. We had the pleasure of a quiet bathe in the midst of noisy cataracts and screaming Indians. I enter into such detail to remind those who plan to travel afar that at any moment in life pleasures can be found.

The more travelers research into natural history, geography or political economy, the more their journey loses that unity and simplicity of composition typical of the earlier travelers. It is now virtually impossible to link so many different fields of research in a narrative so that what we may call the dramatic events give way to descriptive passages. Most readers, who prefer to be agreeably amused to being solidly instructed, gain nothing from expeditions loaded with instruments and collections.

I twice visited the island of Cuba, living there first for three months, and then for six weeks. Bonpland and I visited the neighborhood of Havana, the beautiful Guines valley, and the coast between Batabanò and the port of Trinidad.