EMERY WHEELS AND GRINDERS.

GEO. PLACE, 121 Chambers St., New York Agent.

[Illustration: The Excelsior 1st Premium at Centennial]

$3 PRINTING PRESS!

Prints cards, envelopes, etc., equal to _any_ press. Larger sizes for

large work.

_Do your own printing and advertising and save money_. Excellent spare

hour amusement for old or young. Or it can be made _money making_

business anywhere.

Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 209 / 213 题