On the largest initial completion of categories of algebras.- The coreflective hull of the contigual spaces in the category of merotopic spaces.- On nuclear limit vector spaces.- Higher order sheaves and Banach modules.- On the non- unique extension of topological to bitopological properties.- A categorical approach to probability theory.- Asscoli's theorem for topological categories.- Rigid spaces and monoidal closedness.- The Puppe and Nomura operators in the category of homotopy pairs.- Universal completions of concrete categories.- Relative nilpotent groups.- Factorization of cones II, with applications to weak Hausdorff spaces.- An essay on free compact groups.- Spectral dualities involving mixed structures.- Categories of orderable spaces.- Factorization theorems for geometric morphisms, II.- On subcategories of banach spaces in sheaves.- Connectednesses and disconnectednesses in S-Near.- Local monocoreflectivity in topological categories.- An algebraic version of Cantor-Bendixson analysis.- On regular-projective spaces in topological-algebraic categories.- Boolean completion and m-convergence.- Birkhoff's theorem for categories.- Structure Functors.- On compact space objects in topoi.