I THREE PERIODS OF PROGRESS

 II NITROGEN

 III FEEDING THE SOIL

 IV COAL-TAR COLORS

 V SYNTHETIC PERFUMES AND FLAVORS

 VI CELLULOSE

 VII SYNTHETIC PLASTICS

 VIII THE RACE FOR RUBBER

 IX THE RIVAL SUGARS

 X WHAT COMES FROM CORN

 XI SOLIDIFIED SUNSHINE

 XII FIGHTING WITH FUMES

 XIII PRODUCTS OF THE ELECTRIC FURNACE

 XIV METALS, OLD AND NEW

  READING REFERENCES

  INDEX