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Nov 4, 2010 - Photos on this page taken in the Coconino Copper and Chemical Co.'s plant. Navajo Indian Keservation, Ariz., by H. P. Chase. Recovering ...
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T HE CHEMICAL NEWS PARADE

Photos on this page taken in the Coconino Copper and Chemical Co.'s plant. Navajo Indian K e s e r v a t i o n , Ariz., by H. P. Chase.

Recovering copper s u l f a t e crystals. U p p e r left. Ore dump. Upper right. General view, solar evaporating tanks in foreground. Above. W a s h i n g . Right. Harvesting. Lower left. Leaching plant. Lower right. Shipping.

Above. Drum being tested by a micrometer gage. Struthers -Wells.

Above. Night exposure. Rear view close-up of the 200-inch telescope