"c VAR 0626 02082 RR MLG 831-911 MD= 1E-37 " "c REF 0626 LOC 556 WIDTH 9 DK 9 COL 62-70 " "c " "c " "c INCREASES IN RAILROAD MILEAGE, POOR'S " "c ------------------------------------- " "c " "c NBER SERIES: 02082 " "c AREA COVERED: U.S. " "c UNITS: MILES " "c ANNUAL COVERAGE: 1831-1911 " "c QUARTERLY COVERAGE: NONE " "c MONTHLY COVERAGE: NONE " "c SEASONAL ADJUSTMENT: NONE " "c SOURCE: POOR'S MANUAL OF RAILROADS, 1912. " "c " "c NOTES: CONTENT IS"NET INCREASE OF MILEAGE OF ALL RAILROADS " "c IN THE U.S. IN THE CALENDAR YEAR," AN INCREASE BEING DEFINED " "c AS"FIRST TRACK MILEAGE OPERATED." " "c " "c CHECKED MANUALLY; NO CORRECTIONS NECESSARY. " "c " "c ............................................................... "