The variation of the compass
Subtitle: as determined in various parts of the world (chiefly at sea)
By: by officers of the United States navy, while navigators of ships, between the years 1881 and 1885. Bureau of navigation, Navy department.
Series: Its Naval professional papers:; no. 19; Naval professional papers ;; no. 19.
Publisher: Govt. print. off.
Published: 1886
Place of publication: Washington
Language: eng
Number of pages: 147
Subjects: Compass