. Picabia responded to this article by saying that his copying of this diagram was no different from Cézanne's copying of apples and he added that he saw no reason why his painting, hitherto deemed ‘inadmissable' and incomprehensible, should suddenly be thought to be understandable by all simply because it was now known to use a certain ‘convention of representation' (‘L'Oeil cacodylate', Comoedia, 23 Nov. 1921, p.2, reprinted in Paris exh. cat. 1976, p.96).