When a carload of logs goes through a pulp mill, half of it (the fiber) comes out as pulp (for paper). The rest comes out as a waste sulphite liquor,* a sirupy fluid. To U. S. paper mills this waste was as much a nuisance as used razor blades to ordinary citizens. Poured into rivers at the rate of 3,000,000 tons a year, it absorbed the free oxygen in the water, impairing fishing and polluting streams.
Sportsmen and municipal officials set up such a howl that papermaking States have threatened to crack down...
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