believe, of more than parochial interest: they turn attention to substantive and reflective interdis­ ciplinary work. The collection is divided into three parts. The first part gives perspec­ tives (i) on general features of the interdisciplinary enterprise in philosophy (by Patrick Suppes, Thomas Schwartz, Herbert A. Simon, and Clark Gly­ mour) , and (ii) on a particular topic that invites such interaction, namely computational models of the mind (with contributions by Gilbert Harman, John Haugeland, Jay McClelland, and Allen Newell). The second part con­ tains (mostly informal) reports on concrete research done within that enter­ prise; the research topics range from decision theory and the philosophy of economics through foundational problems in mathematics to issues in aes­ thetics and computational linguistics. The third part is a postscriptum by Isaac Levi, analyzing directions of (computational) work from his perspective.