"c VAR 0191 01238 IRONPRO 1A 889-938 MD= 1E-37 " "c REF 0191 LOC 1680 WIDTH 9 DK 27 COL 44-52 " "c " "c " "c IRON ORE PRODUCTION " "c ------------------- " "c " "c NBER SERIES: 01238 " "c AREA COVERED: U.S. " "c UNITS: THOUSANDS OF LONG TONS " "c ANNUAL COVERAGE: 1890-1938 " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: NONE " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: U.S. BUREAU OF THE MINES, MINERAL RESOURCES; " "c MINERALS YEARBOOK. " "c " "c NOTES: DATA BEGINNING 1906 EXCLUDE ORE CONTAINING MORE THAN " "c FIVE PERCENT MANGANESE. " "c DATA AVAILABLE FOR 1860, 1870, 1875, AND 1880-1888 PIG " "c IRON PRODUCTION. " "c " "c NOT CHECKED AGAINST ORIGINALS. " "c ANNUAL COVERAGE IN START YEAR CHANGED TO 1890 FROM 1899 BY " "c JROTH@NBER.ORG 5/11/2001 " "c ............................................................... "