Contributions to terrestrial magnetism. The variation of the compass as observed at fifty of the principal maritime stations from the earliest times to the present, etc. H. O. Pub. No. 109a.
Publication Title:
Contributions to terrestrial magnetism. The variation of the compass as observed at fifty of the principal maritime stations from the earliest times to the present, etc. H. O. Pub. No. 109a.
Display Title:
Contributions to terrestrial magnetism. The variation of the compass as observed at fifty of the principal maritime stations from the earliest times to the present, etc. H. O. Pub. No. 109a.
Corporate Agency Authors:
Hydrographic Office, Bureau of Navigation, and Department of the Navy