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 24-30, 1970.
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