[Illustration]




SCIENTIFIC AMERICAN SUPPLEMENT NO. 417




NEW YORK, DECEMBER 29, 1883

Scientific American Supplement. Vol. XVI, No. 417.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.


* * * * *

TABLE OF CONTENTS

I. ENGINEERING AND MECHANICS.--Machine for Making Electric
Light Carbons.--2 figures

The Earliest Gas Engine