A chart of magnetic curves of equal variation
- Author(s):
- Barlow, Peter, 1776-1862
- Description:
- World map showing magnetic curves. In lower right margin: Engd. by G. Aikman. Plate III-I from: General atlas of the world. Edinburgh : A. and C. Black, 1854. Prime meridian: Greenwich.
- Publisher:
- Edinburgh : Published by A. & C. Black, [1854]
- Subject(s):
- Magnetic declination—Maps and World maps
- Held by:
- Princeton
- More details at
- https://catalog.princeton.edu/catalog/4535662
