L'ombre ou la mémoire d'un coprs (Shadows or the memory of form)

""To take photographs is to experience shadow. In Photography,
unlike other systems of recording information, light is
projected directly onto an agent, silver emulsion. Transferred
onto a negative it is then preserved as shadow. Far from being
the expression of dark, then, the shadow, in photography, is the
very thing that captures the information originally contained in
light. The recent experiments by different photographers on
density in printing show various ways of approaching this vital
aspect of photography - that of light and shadow, of darkness
that does not indicate an absence of information but the
presence and manifestation of form.'' (Magazines Summary).