A description of a new instrument or celestial compass
Subtitle: adapted for ascertaining the latitude and longitude at sea, by means of the declination and right ascension of the heavenly bodies : for finding the deviation of the magnetic needle, ... as also, for taking bearings and surveying without magnetic aid
By: invented by George Graydon ...
Contributors: Burndy Library
Publisher: Printed by S. and R. Bentley ...
Published: 1825
Place of publication: London
Language: eng
Number of pages: 51
Subjects: Navigation; Magnetic declination; Compass
Notes: Author's inscribed presentation copy.