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SCIENTIFIC AMERICAN SUPPLEMENT NO. 497




NEW YORK, JULY 11, 1885

Scientific American Supplement. Vol. XX, No. 497.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.


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TABLE OF CONTENTS.

I. CHEMISTRY AND METALLURGY.--Making Sea Water Potable.
--By THOS. KAY

The Acids of Wool Oil