VOLUME CVII, NUMBER 2
February 2010

Cohesion, Gene Flow, and the Nature of Species

Matthew J. Barker and Robert A. Wilson

Generic Properties of Evolutionary Games and Adaptationism

Simon M. Huttegger

BOOK REVIEWS

Stanley Peters and Dag Westerståhl: Quantifiers in Language and Logic

Gila Sher

Memo to Authors

New Books