"c           VAR 0774      02134A TLPHN     881-956               MD= 1E-37   "
"c           REF 0774         LOC 1888 WIDTH  9             DK  30 COL 71-79  "
"c                                                 EXP DEC=  2                "
"c                                                                            "
"c              INCREASES IN TELEPHONE WIRE MILEAGE, A.T. & T. - BUREAU OF    "
"c              THE CENSUS, ORIGINAL DATA 1881-1956                           "
"c              ----------------------------------------------------------    "
"c                                                                            "
"c              NBER SERIES: 02134A                                           "
"c              AREA COVERED: U.S.                                            "
"c              UNITS: MILLION MILES                                          "
"c              ANNUAL COVERAGE: 1881-1956                                    "
"c              QUARTERLY COVERAGE: NONE                                      "
"c              MONTHLY COVERAGE: NONE                                        "
"c              SEASONAL ADJUSTMENT: NONE                                     "
"c              SOURCE: 1881-1936: AMERICAN TELEPHONE AND TELEGRAPH COMPANY.  "
"c              1937-1963:"STATISTICAL ABSTRACT OF THE UNITED STATES,"        "
"c              BUREAU OF THE CENSUS, ISSUES OF 1943, 1957, AND 1962 TO       "
"c              1965.                                                         "
"c                                                                            "
"c              NOTES: INCREASES WERE DERIVED FROM ANNUAL DATA ON WIRE        "
"c              MILEAGE IN THE ABOVE SOURCES. THE FIGURE FOR THE PREVIOUS     "
"c              YEAR WAS SUBTRACTED FROM THE FIGURE FOR THE YEAR BEING        "
"c              COMPUTED.                                                     "
"c                  FOR 1881-1956, THE ANNUAL FIGURES REFER TO WIRE MILEAGE   "
"c              IN ALL SYSTEMS. THEY WERE ESTIMATED BY THE AMERICAN           "
"c              TELEPHONE AND TELEGRAPH COMPANY, EXCEPT FOR FOUR BENCHMARK    "
"c              YEARS (1922, 1927, 1932, AND 1937) IN WHICH BUREAU OF THE     "
"c              CENSUS DATA WERE USED. FOR THE SEGMENT 1956-1963, THE ANNUAL  "
"c              FIGURES WERE DERIVED BY ADDING WIRE MILEAGE REPORTED BY BELL  "
"c              TELEPHONE COMPANIES AND BY INDEPENDENT COMPANIES. DATA FOR    "
"c              THE INDEPENDENT COMPANIES ARE BASED ON OPERATING REPORTS      "
"c              SUBMITTED BY EACH COMPANY TO THE U.S. INDEPENDENT TELEPHONE   "
"c              ASSOCIATION. HOWEVER NOT ALL SUCH COMPANIES REPORT. THE DATA  "
"c              FROM BELL TELEPHONE COMPANIES EXCLUDE DROP AND BLOCK WIRE.    "
"c                  BECAUSE OF TECHNOLOGICAL IMPROVEMENTS, INCREASES IN WIRE  "
"c              MILEAGE DO NOT COMPLETELY INDICATE THE INCREASE IN TELEPHONE  "
"c              CAPACITY.                                                     "
"c                                                                            "
"c              ORIGINALS MISSING; NOT PROOFREAD.                             "
"c           ...............................................................  "