Philip French, former drama critic of the New Statesman, recently visited the United States. His report on current tendencies includes comment on new plays by Lanford Wil son, David Mamet , Sam Shep hard and this year's Pulitzer Prizewinning author D. L. Coburn. He also talks about the influence of the New Thanatology, musicals without books, and the transformation of a seedy block on 42nd Street into a row of experimental playhouses.