History of the Signal service
Subtitle: with catalogue of publications, instruments and stations.
By: [Prepared under the direction of Brig. & Bvt. Maj. Gen'l W.B. Hazen, chief signal officer of the Army]
Contributors: Hazen, William Babcock, 1830-1887.
Published: 1884
Place of publication: Washington city
Subjects: United States. Army. Signal Corps