After surveying the northern extremities of Santa Cruz, without any result so far as the object of his expedition was concerned, D'Entrecasteaux directed his course to De Surville's Land of the Arsacides. He reconnoitred the northern coast, and thence reached the shores of Lousiade, which La Perouse had announced his intention of visiting when he left Salomon Island, and surveyed Cape Deliverance. Bougainville was wrong in supposing that this cape belonged to New Guinea; it is the extreme point of an island, called Rossel after one of the officers who has given an account of the expedition. After coasting along a series of low and rocky islands, which were named after the principal officers, the vessels reached Cape William, on the coast of New Guinea. They then directed their course to Dampier's Strait. After sailing along the northern coast of New Britain, several small and mountainous islands, hitherto unknown, were discovered. Upon the 17th of July a small island in the neighbourhood of the Anchorite Islands was sighted. D'Entrecasteaux had long been suffering from dysentery and scurvy, and was in extreme danger. Following the advice of his officers, he decided to take leave of the _Esperance_, and endeavoured to reach Waihoun more quickly. Upon the 20th of July he sunk under long and protracted sufferings. After a stay at Waihoun and Bouro Islands, at which latter place the President overwhelmed the French with civilities, and where Bougainville was still remembered by the natives, the expedition left, under command of D'Auribeau. He also unfortunately fell ill, and the command was transferred to Rossel, under whose orders the vessels passed first Boutong, and then Saleyer Straits, and reached Sourabaya upon the 19th of October. [Illustration: View of the Island of Bouron.] Sad news here awaited the members of the expedition. Louis XVI. had been beheaded. France was at war with Holland and all the European powers. Although both the _Recherche_ and the _Esperance_ needed many repairs, and the health of the crews needed repose, D'Auribeau was about to start for Mauritius, when he was detained by the Dutch governor. Fearing that the news from Europe, affecting as it did the various members of the expedition so differently, might lead to disaffection in his colony, he subjected his "prisoners," as he called the French, to most humiliating conditions, which they could not escape. Irritation and hatred were rampant, when it occurred to D'Auribeau to unfurl the white flag. However, the greater part of the officers and men of science, amongst them Billardiere, obstinately refused to respect the conditions imposed; and being arrested by order of the Dutch authorities, were distributed throughout the different ports of the colony.