Book reviews

J. Roger Saydah. The Ethical Theory of Clarence Irving Lewis. Athens, Ohio: Ohio University Press, 1969. Pp. 171. Indexed. $7.50.

Nicholas Rescher. Many‐Valued Logic. New York: McGraw‐Hill Book Co., 1969. Pp. ix, 359.

EVA Schaper. Prelude to Aesthetics. New York: Humanities Press, 1968. Pp. 179. Indexed. $6.50.

N. Fotion. Moral Situations. Yellow Springs, Ohio: The Antioch Press, 1968. Pp. 124. Indexed. $4.75; paperback $1.05.

John and Shirley Lachs, eds. Physical Order and Moral Liberty. Previously Unpublished Essays by George Santavana. Nashville, Tennessee: Vanderbilt University Press. Pp. xiv, 322. $7.95.

D. C. Armstrong. A Materialist Theory of Mind. New York: Humanities Press, 1968. Pp. xi, 372. Indexed. $8.50.

Annali della Facolta di Lettere et Filosofia, Pubblicazioni dell’ Universita di Barni, Volume XII, Adriatica Editrice, Bari, 1967. Pp. 251.

Bernard Zylstra. From Pluralism to Collectivism: The Development of Harold Laski's Political Thought. New York: Humanities Press, 1968. Pp. 236. $8.00.

Andrew J. Reck. The New American Philosophers: An Exploration of Thought Since “World War II. Baton Rouge, La.: Louisiana State University Press, 1968. Pp. xxii, 362. $8.95.

Elizabeth Ramsden Eames. Bertrand Russell's Theory of Knowledge. New York: George Braziller, 1969. Pp. 240. Indexed. $6.00.