Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 442
nty feet diameter, was established my signalstation. In the center a stout oaken post wasplanted firmly in the ground, and to it wasscrewed the large station-heliograph, intended igoi.] HOW ARMIES TALK TO EACH OTHER. 429 to send signals to the two farthest stations on by heliograph, and by us… … MAP OF THE STATIONS USED IN SIGNALING IN IBQO. the smaller service-heliograph, on a light tri-pod, and intended to connect with the nearestmilitary post, situated off the main heliographline, and thirty-one miles distant. Althoughthere were seven operators besides myself onduty at the station, we…
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