Tables of mast-head angles for five feet intervals
Subtitle: from 30 to 280 feet and varying distances from a cable's length to four miles with their application to nautical surveying; also the determination of distance by sound, with an example
By: By A.B. Becher
Publisher: J.D. Potter
Published: 1854
Place of publication: London
Language: eng
Number of pages: 46
Subjects: Navigation; Tables