poachers set up camps to harvest feathers on many remote islands in the Central Pacific. The feather trade was primarily focused on Laysan albatross, black-footed albatross, masked booby, lesser frigatebird, great frigatebird, sooty tern and other species of tern. On February 6, 1904, Rear Admiral Robley D. Evans arrived at Wake Island on and observed Japanese collecting feathers and catching sharks for their fins. Abandoned feather poaching camps were seen by the crew of the submarine tender in 1922 and in 1923. Although feather collecting and plumage exploitation had been outlawed in the territorial United States, there is no record of any enforcement actions at Wake Island. Japanese castaways In January 1908, the Japanese ship Toyoshima Maru, en route from Tateyama, Japan, to the South Pacific, encountered a heavy storm that disabled the ship and swept the captain and five of the crew overboard. The 36 remaining crew members managed to make landfall on Wake Island, where they endured five months of great hardship, disease and starvation. In May 1908, the Brazilian Navy training ship Benjamin Constant, while on a voyage around the world, passed by the island and spotted a tattered red distress flag. Unable to land a boat, the crew executed a challenging three-day rescue operation using rope and cable to bring on board the 20 survivors and transport them to Yokohama. USS Beaver strategic survey In his 1921 book Sea-Power in the Pacific: A Study of the American-Japanese Naval Problem, Hector C. Bywater recommended establishing a well-defended fueling station at Wake Island to provide coal and oil for United States Navy ships engaged in future operations against Japan. On June 19, 1922, the submarine tender landed an investigating party to determine the practicality and feasibility of establishing a naval fueling station on Wake Island. Lt. Cmdr. Sherwood Picking reported that from "a strategic point of view, Wake Island could not be better located, dividing as it does with Midway, the passage from Honolulu to Guam into almost exact thirds." He observed that the boat channel was choked with coral heads and that the lagoon was very shallow and not over in depth, and therefore Wake would not be able to serve as a base for surface vessels. Picking suggested clearing the channel to the lagoon for "loaded motor sailing launches" so that parties on shore could receive supplies from passing ships and he strongly recommended that Wake