[Illustration]




SCIENTIFIC AMERICAN SUPPLEMENT NO. 484




NEW YORK, APRIL 11, 1885

Scientific American Supplement. Vol. XIX, No. 484.

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. ENGINEERING AND MECHANICS.--Bridge over the Blaauw
Krantz Ravine, Cape Colony.--2 engravings.