This review covers the period from November 1976 through October 1978, and is a continuation of previous reviews. The search of Chemical Abstracts was aided by the Knowledge Availability Service Center at the University of Pittsburgh. Following all citations in the Literature Cited, the Chemical Abstract (Chem. Abstr.) volume, numbers, and year are given.During the past two years, development of methods for the analysis of ores was emphasized because of the need for new sources of raw materials for the steel industry. New instruments offered by manufacturers or developed by research laboratories have as integral parts minicomputers or mi-