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SCIENTIFIC AMERICAN SUPPLEMENT NO. 460




NEW YORK, OCTOBER 25, 1884

Scientific American Supplement. Vol. XVIII, No. 460.

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. ETC.--Wolpert's Method of Estimating the
Amount of Carbonic Acid in the Air.--7 Figures.

Japanese Camphor.--Its preparation, experiments, and analysis
of the camphor oil.--By H. OISHI.