"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 ............................................................... "