39 I4 ZJ 7l 1531 1t 22 22 L2 L7 L7 43 T2 Source: U.S. Bureau of Mines. Connoali tv Data.Sumng-r.i9s, -1972f 1923J 1974t Ig7s,' L- L:r9:r97'L9:r97\9-E; Donalal A. Brobst and vralalen P. Pratt, eds., "united states !'lineral E;6;;;;;, c,eological s\l r vey Professionar PaPer 820 (washingbon D'c' t u' s' Governnent Printlng office, I9?3) t U.s. Bureau of Mines, !'finer al9-{Parbook 1948 and 1974 (washlngton D.c.: U.s. Government Printing offlce, 1950, 1975) The entire table is based uPon The Future of Non-i\rel Mlnerals (washington' D.C. I The Brookings Institution, L977). pP' 6-7' A/37 /386 Engl ish Annex Page 36
**Analysis**
The text appears to be a reference to a report on the mining industry, specifically discussing non-ferrous minerals. The mention of the U.S. Bureau of Mines and the publication date ranges from 1923 to 1977 suggest that the report is focused on the mining industry in the United States. The inclusion of data on the future of non-ferrous minerals and the reference to a Brookings Institution publication also support this hypothesis.

**Category**
Natural resources and environment, Industry