Auxier, Randall.  "Susanne Langer on Symbols and Analogy: A Case of Misplaced Concreteness?"  Process Studies 26, nos. 1-2 (Spring-Summer 1997): 86-106.

Abstract

Analogy is an important idea for process philosophies of language, and Susanne Langer's theory of analogy, as influenced by Cassirer and Whitehead, is the most worked out and sophisticated account.  I argue that Langer's attempt to refine Whitehead's notions of presentational immediacy and causal efficacy landed her in difficulties that her metaphysics was too impoverished to handle.  The result was that Langer's philosophy of language rests on a basic instance of misplaced concreteness.  But the ways in which she failed teach us some important lessons about symbols, signs and analogies.  [Abstract from The Philosopher's Index]