A singular figure in the avant garde of the early twentieth century, Henri Rousseau (1844-1910) was a self-taught painter who turned to art after retiring as a customs inspector at the age of 49. Although he never left Paris, Rousseau painted a number of jungle scenes, drawing on images of the exotic as presented to the urban dweller through popular literature, colonial expositions and the Paris zoo. "The Dream" (1910) is the artist's last major work...