...Examination of the telegraphic apparatus and the processes in telegraphy
By: by Samuel F.B. Morse
Series: In U.S. Commission to the Paris exposition, 1867. Reports of the United States Commissioners. [1868]-70. v. 4 [pt.1]
Publisher: Gov't Print. Off.
Published: 1869
Place of publication: Washington
Language: eng; ita
Number of pages: 166
Subjects: Telegraph
Notes: At head of title: Paris universal exposition, 1867. Reports of the United States commissioners.