TIME.

While we can engrave a plate in a few hours that would occupy a

wood-engraver a month, and often do so, yet with the large amount of

work constantly on hand and promised, we cannot usually engage to fill

an order for a single plate in less than from three to six days;

larger orders will, of course, require longer time.

Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 142 / 213 题