Chiefly tables.
"Comprising hourly readings of terrestrial magnetism at Eskdale Observatory and summaries of the results obtained in terrestrial magnetism, meteorology, and atmospheric electricity, chiefly by means of self-recording instruments at the observatories of the Meteorological Office."
Hourly readings from Valencia, Kew, and Eskdalemuir observatories.
Formed by the union of: Hourly values from autographic records. Geophysical section, and: Hourly values from autographic stations. Meteorological section.
Merged with: Geophysical journal (London, England), to form: The observatories' year book.