This publication summarizes the in-house and contract research projects programmed for fiscal year 1984 by the Bureau of Mines under its conservation and development activity. The document provides a mechanism for interested parties to gain insight into projects of the Bureau's conservation and development research program. The objective of the conservation and development program is to provide the technological advances needed to stimulate the mining of domestic deposits containing critical, strategic, and other essential minerals in compliance with existing regulations and at costs sufficiently low to be competitive in world markets. Research efforts are directed toward improvng the fundamental understanding of processes and procedures involved in the production of minerals. The overall goals will be accomplished by investigating alternative mining methods to increase domestic production of critical and strategic minerals from low-grade deposits; expanding the technology for the economic and efficient extraction of minerals consistent with cost-effective compliance with environmental regulations; and advancing the technologies needed to insure an adequate supply of coal.