"c           VAR 0700      01162 COKE    1A 880-960               MD= 1E-37   "
"c           REF 0700         LOC 2472 WIDTH  9             DK  40 COL 17-25  "
"c                                                                            "
"c                                                                            "
"c              BEEHIVE COKE OVENS IN EXISTENCE                               "
"c              -------------------------------                               "
"c                                                                            "
"c              NBER SERIES:  01162                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  NUMBER OF OVENS                                       "
"c              ANNUAL COVERAGE:  1880-1960                                   "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  NONE                                       "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  MINERAL RESOURCES, 1930, PART II, P. 497; IBID,      "
"c              1931, PART II, P. 375; STATISTICAL APPENDIX TO MINERALS       "
"c              YEARBOOKS, 1932-1933, P. 252; MINERALS YEARBOOK, 1934, P.     "
"c              577; IBID, 1939, P. 867; AND SEE NOTE BELOW.                  "
"c                                                                            "
"c              NOTES:  1900-1930 DATA ALSO APPEAR IN AMERICA'S CAPACITY TO   "
"c              PRODUCE, (BROOKINGS), P. 552.  1880-1945 DATA ARE SHOWN IN    "
"c              MINERALS YEARBOOK, 1945, PP. 986-969; 1946 DATA ARE FROM THE  "
"c              MINERAL INDUSTRY SURVEYS, MINERAL MARKET REPORT M.M.S. 1537   "
"c              (JULY 10, 1947.  1910-1960 DATA ARE ALSO SHOWN IN THE BUREAU  "
"c              OF MINES, MINERALS YEARBOOK 1960 PREPRINT, COKE AND COAL      "
"c              CHEMICALS, P. 9.                                              "
"c                   DECEMBER 31, 1880 REPRESENTS FISCAL YEAR 1881.  THE      "
"c              ENTIRE SERIES IS TREATED AS REPRESENTING FISCAL YEARS ENDING  "
"c              JUNE 30.                                                      "
"c                   THE LARGE DROP FROM 1929-1930 IS DUE PARTLY TO A CHANGE  "
"c              IN THE FORM OF INQUIRY.  FOR MORE INFORMATION, SEE MINERAL    "
"c              RESOURCES, 1930, PART II, P. 506.                             "
"c                   BRIEFLY, GRADUAL REPLACEMENT OF BEEHIVE WITH BYPRODUCT   "
"c              COKE CAUSED LARGE NUMBERS OF BEEHIVE OVENS TO QUIT PRODUCING  "
"c              COKE.  THE BUREAU OF CENSUS DID NOT DROP SUCH OVENS FROM ITS  "
"c              LISTS UNTIL A SPECIAL INQUIRY IN 1929 INDICATED THAT A        "
"c              CONSIDERABLE NUMBER OF OVENS' STATUS SHOULD BE CHANGED FROM   "
"c              IDLE TO ABANDONED.  THE NUMBER OF BEEHIVE OVENS COUNTED AS    "
"c              ABANDONED IN 1929 (11,611) WAS UNUSUALLY HIGH (COMPARE TO     "
"c              8,299 COUNTED AS ABANDONED IN 1928 AND 6,503 IN 1930).        "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   "
"c                                                                            "
"c           ...............................................................  "
-1
1880.
1960.
12372.0
14119.0
16356.0
18304.0
19557.0
20116.0
22597.0
26001.0
30059.0
34165.0
37158.0
40057.0
42002.0
44189.0
44760.0
45493.0
46784.0
47388.0
47863.0
48583.0
57399.0
62786.0
67406.0
77378.0
80689.0
84405.0
90354.0
95996.0
97419.0
99993.0
100362.
99255.0
97019.0
96962.0
93946.0
93110.0
91581.0
88027.0
84635.0
82560.0
75298.0
66014.0
63958.0
62349.0
60432.0
57587.0
52558.0
49795.0
41288.0
30082.0
23907.0
21588.0
19440.0
16857.0
14206.0
13674.0
13012.0
12194.0
10816.0
10934.0
15150.0
18669.0
16295.0
17666.0
16318.0
12179.0
12864.0
13443.0
14078.0
13662.0
17708.0
20458.0
17551.0
15092.0
12216.0
10104.0
9549.00
9519.00
8682.00
7448.00
7583.00