 Complete the following phrase:  In 1842, was sent north to survey the coast of Vancouver Island and what would become the Esquimalt Royal Navy Dockyard. During the survey trip, the crew of Pandora found that Esquimalt Harbour had a size and depth suited for use as a Royal Navy harbour. As tensions between Britain and America rose during the Oregon boundary dispute a base at the southern end of Vancouver Island would help strengthen the British claim to all of the island. The Oregon Treaty of 1846 ceded control over all of the island to Britain. In 1848, was sent to Esquimalt and was the first vessel to be stationed there. In the summer of 1854, several ships, including , , , , and set out from Valparaíso and sailed across the Pacific Ocean stopping at the Marquesas Islands then they went on to Honolulu where they met a French fleet of warships. In late August, the combined fleets sailed to Russia to engage in the 