Bougainville endeavoured to acclimatize, of which scarce a vestige remained at the time of Freycinet's visit. The plant which reaches the greatest height and grows most plentifully is a species of sword-grass, excellent food for cattle, and serving also as a place of shelter to numbers of seals and multitudes of gulls. It is this high grass which sailors have taken from a distance for bushes. The only vegetables growing on these islands of any use to man are celery, scurvy-grass, watercress, dandelion, raspberries, sorrel, and pimpernel. Both French and Spanish colonists had at different times imported into these islands oxen, horses, and pigs, which had multiplied to a singular extent in the island of Conti; but the persistent hunting of them by the crews of the whaling ships must tend to considerably reduce their numbers. The only quadruped indigenous to the Falkland Islands is the Antarctic dog, the muzzle of which strikingly resembles that of the fox. It has therefore had the name dog-fox, or wolf-fox, given to it by whalers. These animals are so fierce that they rushed into the water to attack Byron's sailors. They, however, find rabbits enough, whose reproductive powers are limitless, to satisfy them; but the seals, which the dogs attack without any fear, manage to escape from them. The _Mercury_ set sail on the 28th of April, 1821, to convey Freycinet and his crew to the port of Rio de Janeiro. But one point Captain Galvin had failed to take into his reckoning,--his ship, equipped under the flag of the Independent State of Buenos Ayres, then at war with the Portuguese, would be seized on entering the harbour of Rio, and he himself with all his crew would be made prisoners. On this he endeavoured to make Freycinet cancel the engagement between them, hoping to prevail on him to land at Monte Video. But as Freycinet would not agree to this proposal on any ground, a new contract had to be substituted for the original one. According to the latter arrangement Freycinet became proprietor of the _Mercury_ on behalf of the French navy by payment of the sum stipulated under the first contract. The ship was renamed the _Physicienne_, and reached Monte Video on the 8th of May, where the command was taken over by Freycinet. The stay at Monte Video was made use of for arming the vessel, arranging its trim, repairing the rigging, taking on board the supply of water and provisions requisite for the trip to Rio de Janeiro; before reaching which port, however, several serious defects in the ship had been discovered. The appearance of the _Physicienne_ was so distinctly mercantile that on entering the port of Rio, though the flag of a man-of-war was flying at the masthead, the customs officers were deceived and proposed to inspect her as a merchant-vessel. Extensive repairs were absolutely necessary, and the making of them compelled Freycinet to remain at Rio until the 18th of September. He was then