COKE AND BYPRODUCTS 425

 Trend in~ byproduct and beehive coke production.—The output of byproduct
plants first exceeded that of beehive plants in 1919 after a decade of rapid
growth in the byproduct industry associated with the demand for munitions.
Since then this growth has persisted, so that in 1931 and 1932 byproduct
coke accounted for over 96 percent of the total. The relation of beehive
plants to the industry has become one of "stand-by" capacity to take care
of peak demands for coke. In fact, the capacity of byproduct plants was ample
to have taken care of the entire demand for coke in 1921, 1922, 1924, and
each year since 1926, had there been no output by beehive plants in those
years.
 Production by furnace and nonfurnace plants.—During the decade closing
with 1929 the relative output of furnace and nonfurnace byproduct plants
was quite constant, averaging 79 percent for furnace and 21 percent for nonfurnace
plants. In 1930 the ratios shifted in favor of nonfurnace plants, which in
1932 contributed 46.5 percent of the total. (See fig. 29.) The failure of
furnace plants to maintain their relative position reflects the decline in
pig-iron output, while
 FURNACE OTHER
270 J
 I9I5f~~~j   27J 1
 19 17 ~ 26~
  23.9 1

1921 ~ 19.6 1
  21.1 I
 1925 ~ ~ 21.1 1
 I 927 ~ 7~7Z~Z~J 22.3 I

I929~~~~  22.8  I
 1930 ~ 26.5 I
 1931 ~ 35.7 1
 1932 ~ 46.5 I

FIGURE 29.— Output of byproduct coke by furnace plants and by all other
plants, 1913-32. Figures in
bars represent percentage of the total produced during year.

the nc?nfurnace plants have suffered less because of the greater stability
of the nonmetallurgicill coke markets.
 Production by &ates.—The States showing the greatest losses in
1932 were naturally the important, iron-producing States—Alabama, Illinois,
Indiana, Ohio, and Pennsylvania—whose combined output of byproduct
coke fell from 19,636,923 tons in 1931 to 10,648,812 tons in 1932 (45.8 percent).
Production in other States decreased from 12,718,626 to 10,610,136 tons (16.6
percent).