Drained field agriculture in central and south America. Edited by J. P. Darch. Proceedings 44th International Congress of Americanists, Manchester, 1982. 263 pp. BAR International Series 189. 1983. £16.00. - Social and economic organization in the prehispanic Andes. Edited by D. L. Browman, R. L. Burger, and M. A. Rivera. Proceedings 44th International Congress of Americanists, Manchester, 1982. 247 pp. BAR International Series 194. 1984. £14.00. - Volume 50 Issue 1