hydrophenantiirene (X). A.-A solution of ketone VI (57 g.) in ether (100 ml.) was added dropwise to a cold solution of methylmagnesium iodide prepared from magnesium (6.1 g.), methyl iodide (40 g.) and dry ether (300 ml.). After standing overnight the reaction mixture was treated with ammonium chloride solution and the ether layer was separated, washed with water and concentrated. The crude alcohol VII (60 g.) was dissolved in benzene (40 ml.) and cyclized with sulfuric acid (600 ml.) and water (126 ml.) as
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