Tables for azimuths, great-circle sailing, and reduction to the meridian, with a new and improved "Sumner" method: latitudes 90⁰ N. to 90⁰ S., declinations 90⁰ N. to 90⁰ S.
Subtitle: also other useful navigational tables, with numerous examples of double altitudes, equal altitudes, azimuths, etc.
By: by H. S. Blackburne.
Edition: 4th ed.
Publisher: By authority: Marcus F. Marks
Published: 1916
Place of publication: Wellington, N.Z
Language: eng
Number of pages: 181
Subjects: Navigation -- Tables.; Great-circle sailing.; Sumner's method.
Genres: Tables.
Other titles: Reduction to the meridian tables.