On the 23rd November the Thetis, which had been separated from the Espérance during a heavy storm, anchored off Valparaiso, where it met Admiral de Rosamel's division. Great excitement prevailed in the roadstead, for an expedition against the island of Chiloë, which still belonged to Spain, was being organized by the chief director, General Ramon Freire y Serrano, of whom we have already spoken.
Bougainville, like the Russian navigator Lütke, is of opinion that the position of Valparaiso does not justify its reputation. The streets are dirty and narrow, and so steep that walking in them is very fatiguing. The only pleasant part is the suburb of Almendral, which, with its gardens and orchards, would be still more agreeable but for the sand-storms prevalent throughout nearly the whole of the year. In 1811, Valparaiso numbered only from four to five thousand inhabitants; but in 1825 the population had already tripled itself, and the increase showed no sign of ceasing. When the Thetis touched at Valparaiso, the English frigate, the Blonde, commanded by Lord Byron, grandson of the explorer of the same name, whose discoveries are narrated above, was also at anchor there. By a singular coincidence Byron had raised a monument to the memory of Cook in the island of Hawaii, at the very time when Bougainville, the son of the circumnavigator, met by Byron in the Straits of Magellan, was laying the foundation-stone of the monument to the memory of La Pérouse in New South Wales.
Bougainville turned the delay necessary for the revictualling of his division to account by paying a visit to Santiago, the capital of Chili, thirty-three leagues inland. The environs of Chili are terribly bare, without houses or any signs of cultivation. Its steeples alone mark the approach to it, and one may fancy oneself still in the outskirts when the heart of the city is reached. There is, however, no lack of public buildings, such as the Hôtel de la Monnaie, the university, the archbishop's palace, the cathedral, the church of the Jesuits, the palace, and the theatre, the last of which is so badly lighted that it is impossible to distinguish the faces of the audience. The promenade, known as La Cañada, has now supplanted that of L'Alameda on the banks of the river Mapocha, once the evening rendezvous. The objects of interest in the town exhausted, the Frenchmen examined those in the neighbourhood, visiting the Salto de Agua, a waterfall of 1200 feet in height, the ascent to which is rather arduous, and the Cerito de Santa-Lucia, from which rises a fortress, the sole defence of the town.
The season was now advancing, and no time was to be lost if the explorers wished to take advantage of the best season for doubling Cape Horn. On the 8th January, 1826, therefore, the two vessels once more put to sea, and rounded the Cape without any mishap, though landing at the Falklands was rendered impossible by fog and contrary winds. Anchor was cast on the 28th March in the roadstead of Rio Janeiro, and, as it turned out, at a time most favourable for the French to form an accurate opinion alike on the city and the court.
"The emperor," says Bougainville, "was upon a journey at the time of our arrival, and his return was the occasion of fêtes and receptions which roused the population to activity, and broke for a time the monotony of ordinary life in Rio, that dullest and dreariest of towns to the foreigner. Its environs, however, are charming; nature has in them been lavish of her riches; and the vast harbour, the Atlantic, rendezvous of the commercial world, presents a most animated scene. Innumerable ships, either standing in or getting under weigh, small craft cruising about, a ceaseless roar of cannon from the forts and men-of-war, exchanging signals on the occasion of some anniversary or the celebration of some festival of the church, whilst visits were constantly being exchanged between the officers of the various foreign vessels and the diplomatic agents of foreign powers at the court of Rio."
The division set sail again on the 11th April, and arrived at Brest on the 24th June, 1826, without having put into port since it left Rio Janeiro. We must remember that if Bougainville did not make any discoveries on this voyage, he had no formal instructions to do so, his mission being merely to unfurl the flag of France where it had as yet been rarely seen. None the less do we owe to this general officer some very interesting, and in some cases new information on the countries visited by him. Some of the surveys made by his expedition may be of service to navigators, and it must be owned that the hydrographical researches which alone could be undertaken in the absence of scientific men were carefully made, and resulted in the obtaining of numerous and accurate data. We can but sympathize with the commander of the Thetis, in his expression of regret, in the preface to his journal, that neither the Government nor the Académie des Sciences had seen fit to turn his expedition to account to obtain new results supplementary of the rich harvest gleaned by his predecessors.
The expedition next sent out under the command of Captain Dumont d'Urville was merely intended by the minister to supplement and consolidate the mass of scientific data collected by Captain Duperrey in his voyage from 1822 to 1824. As second in command to Duperrey, and the originator and organizer of the new exploring expedition, D'Urville had the very first claim to be appointed to its command. The portions of Oceania he proposed to visit were New Zealand, the Fiji Islands, the Loyalty Islands, New Britain, and New Guinea, all of which he considered urgently to demand the consideration alike of the geographer and the traveller. What he effected in this direction we shall ascertain by following him step by step. An interest of another character also attaches to this trip, but it will be well to quote on this point the instructions given to the navigator.
"An American captain," writes the Minister of Marine, "said that he saw in the hands of the natives of an isle situated between New Caledonia and the Louisiade Archipelago a cross of St. Louis and some medals, which he imagined to be relics of the wrecked vessel of the celebrated La Pérouse, whose loss is so deeply and justly regretted. This is, of course, but a feeble reason for hoping that some of the victims of the disaster still survive; but you, sir, will give great satisfaction to his Majesty, if you are the means of restoring any one of the poor shipwrecked mariners to their native land after so many years of misery and exile."
The aims of the expedition were therefore manifold, and by the greatest chance it was able to achieve them nearly all. D'Urville received his appointment in December, 1825, and was permitted himself to choose all who were to accompany him. He named as second in command Lieutenant Jacquinot, and as scientific colloborateurs Messrs. Quoy and Gaimard, who had been on board the Uranie, and as surgeon Primevère Lesson. The Coquille, the excellent qualities of which were well known to D'Urville, was the vessel selected; and the commander having named her the Astrolabe in memory of La Pérouse, embarked in her a crew of twenty-four men. Anchor was weighed on the 25th April, and the mountains of Toulon with the coast of France were soon out of sight.
After touching at Gibraltar, the Astrolabe stopped at Teneriffe to take in fresh provisions before crossing the Atlantic, and D'Urville took advantage of this delay to ascend the peak, accompanied by Messrs. Quoy, Gaimard, and several officers, a bad road, very arduous for pedestrians, leading the first part of the way over fields of scoria, though as Laguna is approached the scenery improves. This town, of a considerable size, contains but a small, indolent, and miserable population.