[Illustration]




SCIENTIFIC AMERICAN SUPPLEMENT NO. 443.




NEW YORK, JUNE 28, 1884.

Scientific American Supplement. Vol. XVII., No. 443.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

* * * * *




TABLE OF CONTENTS.


I. CHEMISTRY AND METALLURGY.--Beeswax and its Adulterations.
--Chemical ingredients.--Detection of adulterations. 7064