February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Much attention has been focused on U.S. dependency on imports for supplies of strategic minerals and materials. There is alarm about the extent of that dependency and about the possibility that U.S. economic, political, and strategic decisions might be unduly influenced by arbitrary actions of foreign suppliers. In addition, there is concern that t