Induction(归纳法 Back Specific details: More mysterious facts recorded 3.A 500-foot coal ship disappeared on March 4. 1918. Investigations revealed no evidence of bad weather, no messages for help, no wreckage and no sign of the 309 men aboard 4. Stranger yet are the numerous"ghost"ships that have been found floating crewless within the triangle. on one weird occasion in 1881, the cargo steamer Ellen austin discovered a small sailing ship, sails waving uselessly in the wind ●● aras >more1. On July 3, 1947, a U.S. Army airplane disappeared 100 miles off Bermuda without broadcasting any word of difficulty; and an immediate search failed to turn up a single piece of the missing plane. 2. On January 30, 1948, a British airliner vanished over the triangle with 31 passengers and crew aboard. A year later, the missing airliner’s sister plane disappeared in the same mysterious way. Back Induction (归纳法) 3. A 500-foot coal ship disappeared on March 4, 1918. Investigations revealed no evidence of bad weather, no messages for help, no wreckage and no sign of the 309 men aboard. 4. Stranger yet are the numerous “ghost” ships that have been found floating crewless within the triangle. On one weird occasion in 1881, the cargo steamer Ellen Austin discovered a small sailing ship, sails waving uselessly in the wind… (Paras. 4 - 5) >>>more Specific details: More mysterious facts recorded