Discussion sessions took place between 1928 and 1932.

 1928 Fourth Session included Jean Genbach, Andre Breton, Marcel Duhamel,
   Pierre Naville, Jacques Prevert, Max Morise, Yves Tanguy Pierre Unik.

   Feb; Fifth Session of Investigating Sex : Maxime Alexandre, Andre Breton, 
   Marcel Duhamel, Max Ernst, M, Marcel Noll, Benjamin Peret, Jacques Prevert, 
   Raymond Queneau, Georges Sadoul, Pierre Unik

 1932  August 1st - The 12th Session Investigating Sex  with Andre Breton, 
   Paul Eluard and Yves Tanguy, Gui Rosey.

   See Investigating Sex: Surrealist Discussions - Jose Pierre
   See ~> In Bed with the Surrealists.

   See Timeline