SHINGLE AND HEADING MACHINE--

Law's Patent with Trevor & Co.'s Improvements. The Simplest and Best

in use. Also, Shingle, Heading and Stave Jointers, Equalizers,

Heading Turners, Planers etc. Address

TREVOR & CO., Lockport, N. Y.

* * * * *

AGENTS WANTED--($225 A MONTH) by the AMERICAN KNITTING MACHINE CO.

Boston, Mass., or St. Louis, Mo.

* * * * *

THE

_UNITED STATES_

BRICK MACHINE

IS THE

BEST IN THE WORLD,

BECAUSE IT MAKES THE

GREATEST NUMBER,

THE BEST, and

THE CHEAPEST

BRICKS.

Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 140 / 194 题