(1870). Annual report of the Chief Signal Officer made to the Secretary of War for the year . Retrieved from http://catalog.hathitrust.org/Record/008884146
Description
1879 volume is referred to as 1878-79 on HathiTrust. ;, OCMH1: 5055 | Alcove G. | Shelf 119. ;, OCMH2: X-16/29 ;, HOLDINGS: 1879. ;