, of the size of a. . .); an appreciation of the ease or difficulty to be found in simple operations (tearing, crushing, pressing); the value of intersensorial qualities (smooth, greasy, bumpy); empirical comparisons and references to the everyday or normal (deeper than in the natural state, an intermediate sensation `between that of a damp bladder half filled with air that one squeezes between the fingers and the natural crepitation of a healthy pulmonary tissue').''' It is no longer a question of correlating a perceptual sector and a semantic element, but of bending language back entirely towards that region in which the perceived, in its singularity, runs the risk of eluding the firm of the word and of becoming finally imperceptible because incapable of being said.