POPULAR TECHNOLOGY;

OR,

PROFESSIONS AND TRADES.

BY EDWARD HAZEN, A. M.,

AUTHOR OF
"THE SYMBOLICAL SPELLING-BOOK," "THE SPELLER AND DEFINER," AND "A PRACTICAL GRAMMAR."

EMBELLISHED WITH EIGHTY-ONE ENGRAVINGS.

IN TWO VOLUMES.

VOL. II.

NEW YORK:
HARPER & BROTHERS, PUBLISHERS.
1870.

Entered, according to Act of Congress, in the year 1841, by

Harper & Brothers,

in the Clerk's Office of the Southern District of New York.

CONTENTS

of

THE SECOND VOLUME.