The production of soda pulp required many steps and procedures, not to mention vast amounts of chemicals. Many of these steps produced byproducts.
These Forest Paper Co. employees were in charge of the massive boiler room that heated large furnaces dealing with such byproducts.
In this case dissolved wood components called "black liquor" were boiled down and evaporated until it was the consistency of molasses then burned at high temperatures until it turned into "black ash" eventually used as landfill in Yarmouth.
