Jean Metzinger see the cubist works in Room 7 and 8. While Pablo Picasso and Georges Braque are generally acknowledged as the founders of the twentieth-century movement that became known as Cubism, it was Jean Metzinger, together with Albert Gleizes, that created the first major treatise on the new art-form, "Du "Cubisme"", in preparation for the Salon de la Section d'Or held in October 1912. "Du "Cubisme"", published the same year by Eugène Figuière in Paris, represented the first theoretical interpretation, elucidation and justification of Cubism, and was endorsed by both Picasso and Braque. "Du "Cubisme"", which preceded Apollinaire's well known essays,
20th-century French literature Valéry and Larbaud). In the novel, André Gide's early works, especially "L'Immoraliste" (1902), pursue the problems of freedom and sensuality that symbolism had posed; Alain-Fournier's novel "Le Grand Meaulnes" is a deeply felt portrait of a nostalgic past. But radical experimentation was not appreciated by all literary and artistic circles in the early 20th century. Popular and bourgeois tastes were relatively conservative. The poetic dramas of Edmond Rostand, especially "Cyrano de Bergerac" in 1897, were immensely popular at the start of the 20th century, as too the "well-made" plays and bourgeois farces of Georges Feydeau. Anatole France, Maurice Barrès, Paul