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SCIENTIFIC AMERICAN SUPPLEMENT NO. 483




NEW YORK, APRIL 4, 1885

Scientific American Supplement. Vol. XIX, No. 483.

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.--The Determination of
Graphite in Minerals.--By J.B. MACKINTOSH.

Sulphocyanide of Potassium.