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SCIENTIFIC AMERICAN SUPPLEMENT NO. 441




NEW YORK, JUNE 14, 1884

Scientific American Supplement. Vol. XVII., No. 441.

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.--On Electrolysis.--Precipitation
of lead, thallium, silver, bismuth, manganese, etc.--By H.