A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 188
~w\ -wl_ poles^upward. The wires, W W, from the distant sta-tion induce magnetism in it, and draw down the softiron keeper, a. At the same time the clock-work, <?, isset going, and a strip of paper, p p, is drawn steadilyforward in the direction of the arrows. Whenever acurrent passes, and the…
Chemistry · Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
