Marxism and Social Science. Edited by Andrew Gamble, David Marsh, and Tony Tant. Champaign: University of Illinois Press, 1999. 381p. $42.50 cloth, $19.95 paper. - Engels after Marx. Edited by Manfred B. Steger and Terrell Carver. University Park: Pennsylvania State University Press, 1999. 294p. $55.00 cloth, $18.95 paper