Contributions to terrestrial magnetism, the magnetic dip or inclination.
Subtitle: As observed at thirty important maritime stations, together with an investigation of the secular change in the direction of a freely suspended magnetic needle at twenty-nine of the stations.
By: By G.W. Littlehales ...
Series: [United States] Hydrographic Office. [Publications]; no. 114
Publisher: Govt. Print. Off.
Published: 1897
Place of publication: Washington
Language: eng
Number of pages: 45
Subjects: Geomagnetism -- Secular variations.