DuchampFirst published to great acclaim in 1996, New Yorker writer and art critic Calvin Tomkins' biography of the influential artist Marcel Duchamp (1887 1968) has been out of print for many years. Now, The Museum of Modern Art, New York, is publishing a new and revised edition of the landmark biography to commemorate the 100th anniversary of Duchamp's first Readymade, "Bicycle Wheel," a later version of which is in MoMA's collection. Duchamp is widely