Early Indian Economics: Studies in the Economic Life of Northern and Western India, ca. 200 B.C. to 300 A.D. By G. L. Adhya. New York: Asia Publishing House, 1967. Pp. xii, 219. $6.25.Revenue System in Post-Maurya and Gupta Times. By D. N. Jha. Calcutta: Punthi Pustak, 1967. Pp. xv, 234. Rs. 25.