Relatively free relation algebras -- The value of free algebras -- Continuations of logic programs -- On cylindric algebraic model theory -- Dynamic algebras as a well-behaved fragment of relation algebras -- All recursive types defined using products and sums can be implemented using pointers -- The abstract Galois theory: A survey -- The implications in conditional logic -- Optimal semantics of data type extensions -- Other logics for (equational) theories -- Mal'cev algebras for universal algebra terms -- Beth's and Craig's properties via epimorphisms and amalgamation in algebraic logic -- The resolution rule: An algebraic perspective -- Incremental models of updating data bases -- Noncommutative cylindric algebras and relativizations of cylindric algebras -- On the ?-definable tree operations.