Variation of the Compass – Description of the Azimuth Compass – Use of the Aximuth Compass – To find the Variation by an Amplitude – To Find the Variation by an Azimuth – To Find the true Azimuth by Another Method

New and Complete Epitome of Practical Navigation

Norie, J. W. 1828


Funding for digitization provided by The Andrew W. Mellon Foundation