Magnetic model showing changes at Philadephia

Magnetic model showing changes at Philadephia, 1840-45

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Magnetic model showing changes at Philadephia, 1840-45
Science Museum Group
© The Board of Trustees of the Science Museum

Magnetic model showing changes at Philadephia, 1840-45

Details

Category:
Terrestrial Magnetism
Object Number:
1980-1895
type:
model
credit:
Meteorological Office