Studies in Metal-Ammonia Reduction. Part 4. Reduction and Reductive Methylation of 7-Methoxy-3,4-dihydrophenanthren-1(2H)-one and 7-Methoxy-3,4-dihydrophenanthren-1(2H)-one and 7-Methoxy-1,2-dihydrophenanthren-4(3H)-one.