1912 Gleizes exhibited L'Homme au Balcon (Man on a Balcony), now at the Philadelphia Museum of Art. The Cubist contribution to the 1912 Salon d'Automne created a controversy in the Municipal Council of Paris, leading to a debate in the Chambre des Députés about the use of public funds to provide the venue for such barbaric art. The Cubists were defended by the Socialist deputy, Marcel Sembat. Albert Gleizes and Jean Metzinger, in preparation for the Salon de la Section d'Or, published a major defence of Cubism, resulting in the first theoretical essay on the new movement, entitled Du "Cubisme" (published by Eugène Figuière in 1912, translated to English and Russian in 1913). Theory In Du "Cubisme" Gleizes and Metzinger wrote: "If we wished to relate the space of the [Cubist] painters to geometry, we should have to refer it to the non-Euclidean mathematicians; we should have to study, at some length, certain of Riemann's theorems." Cubism itself, then, was not based on any geometrical theory, but corresponded better to non-Euclidean geometry than classical or Euclidean geometry. The essential was in the understanding of space other than by the classical method of perspective; an understanding that would include and integrate the fourth dimension. Cubism, with its new geometry, its dynamism and multiple view-point perspective, not only represented a departure from Euclid's model, but it achieved, according to Gleizes and Metzinger, a better representation of the real world: one that was mobile and changing in time. For Gleizes, Cubism represented a "normal evolution of an art that was mobile like life itself." In contrast to Picasso and Braque, Gleizes' intent was not to analyze and describe visual reality. Gleizes had argued that we cannot know the external world, we can only know our sensations. Objects from daily life⎯guitar, pipe or bowl of fruit⎯ did not satisfy his complex idealistic concepts of the physical world. His subjects were of vast scale and of provocative social and cultural meaning. Gleizes' iconography (as of Delaunay, Le Fauconnier and Léger) helps to explain why there is no period in his work corresponding to analytic Cubism, and how it was possible for Gleizes to become an abstract painter, more theoretically in tune with Kandinsky and Mondrian than Picasso and Braque, who remained associated with visual reality. Gleizes' intent was to reconstitute and synthesize the real world according to his individual consciousness (sensations), through the use of