Catalouge of an exhibition at the Tate Gallery Wednesday 17 July to Sunday 22 September 1968.
Exhibition selected by David Sylvester
Revisions to the text suggested by the exhibition will be incorporated in a further edition of the catalogue,
should one be required. In any event they will be included in the edition in book form to be publish- ed in
New York this autumn by Frederick A. Pracger, Inc.