Lachmann, Rolf.  "From Metaphysics to Art and Back: The Relevance of Susanne K. Langer's Philosophy for Process Metaphysics."  Process Studies 26, nos. 1-2 (Spring-Summer 1997): 107-25.

Abstract

The article demonstrates the influence of A. N. Whitehead on S. K. Langer's philosophy particularly regarding Langer's concept of presentational symbols.  These can be understood as motivated by a central idea of Whitehead's philosophy of organism.  The concept of presentational symbols, which Langer uses as the basis for a philosophy of art, becomes in turn her starting point for a theory of life as developed in her magnum opus "Mind: An Essay on Human Feeling".  The conceptual framework of the theory of life shows parallels to Whitehead's metaphysics.  But it is also a novel contribution to process thought and points the way for an extension of process metaphysics.  [Abstract from The Philosopher's Index]