"c           VAR 0685      01274 COALMAC 1A 891-944               MD= 1E-37   "
"c           REF 0685         LOC 2337 WIDTH  9             DK  37 COL 71-79  "
"c                                                                            "
"c                                                                            "
"c              BITUMINOUS COAL, NUMBER OF UNDERCUTTING MACHINES IN USE AT    "
"c              THE END OF THE YEAR                                           "
"c              ----------------------------------------------------------    "
"c                                                                            "
"c              NBER SERIES:  01274                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  NUMBER                                                "
"c              ANNUAL COVERAGE:  1891, 1896-1944                             "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  NONE                                       "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  MINERAL RESOURCES OF THE U.S., 1923, 1927, 1929,     "
"c              1930, 1931; MINERALS YEARBOOK, 1932 AND FOLLOWING ISSUES.     "
"c                                                                            "
"c              NOTES:   DATA INCLUDE UNDERCUTTING MACHINES USED IN LIGNITE   "
"c              MINES.                                                        "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "