Hopf and Eilenberg-Maclane algebras -- Discoherently associative bifunctors on groups -- Directed colimits and sheaves in some non-abelian categories -- Bifibration induced adjoint pairs -- The double category of adjoint squares -- Structure et Semantique Abstraites: Extension a des Categories de Morphismes d'une Paire de Foncteurs Adjoints -- Limit-colimit commutation in abelian categories -- Non-abelian full embedding; Announcement of results -- The multilinear yoneda lemmas: Toccata, fugue, and fantasia on themes by eilenberg-kelly and yoneda -- Locally ?-presentable and locally ?-generated categories -- The meeting of the Midwest Category Seminar in Zurich August 24โ{128}{147}30, 1970