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PHOTOGRAPH CAPTION: Placing Wood Chips Into Digester.-- 'Robert Supka of 506 South Ave., Syracuse, puts wood chips into digester, a pressure-type cooker into which water solutions of chemicals are also added for chemical reduction of wood chips into pulp. Through use of chemicals, the cementing material in wood known as lignin is dissolved and the fibers are separated from one another.'

5820 x 3716

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