"c           VAR 0668      01176 ZINC    1A 882-940               MD= 1E-37   "
"c           REF 0668         LOC 2184 WIDTH  9             DK  35 COL 44-52  "
"c                                                 EXP DEC=  1                "
"c                                                                            "
"c              SLAB ZINC PRODUCTION                                          "
"c              --------------------                                          "
"c                                                                            "
"c              NBER SERIES:  01176                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  THOUSANDS OF SHORT TONS                               "
"c              ANNUAL COVERAGE:  1882-1940                                   "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  NONE                                       "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  MINERAL RESOURCES AND MINERALS YEARBOOK.             "
"c                                                                            "
"c              NOTES:   DATA FOR 1904-1905 INCLUDE AN UNKNOWN QUANTITY       "
"c              SMELTED FROM FOREIGN ORE, SMALL IN 1904 BUT LARGER IN 1905.   "
"c                   BEGINNING 1906, DATA INCLUDE PRODUCTION FROM BOTH        "
"c              DOMESTIC AND FOREIGN ORE.  IN 1906, THE PERCENTAGE OF ZINC    "
"c              SMELTED FROM FOREIGN ORES WAS 11.2; IN 1939, 3.2.             "
"c                   DATA FOR 1932 INCLUDE DOMESTIC ORES ONLY.                "
"c                   DATA WAS ALSO CHECKED WITH METAL STATISTICS.             "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "