Inside Out Library · Explore

Scientific American, Vol. 60, No. 11 (1889) (1889)

leaf 8

An illustration from Scientific American, Vol. 60, No. 11 (1889), 1889, leaf 8
tor circuit. a fine cambric needle, which lightly touches the sur- sufficiently to transmit speech, even when heavily Thus equipped, a canal boat could make her way with face of the smoked glass when the cell is in the position weighted. A diaphragm, when placed in a horizontal a speed exceeding…

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 60, No. 11 (1889)

More like this