Oxford: Clarendon Press, 1962. corrected edition. Hard Cover. 2 Volume set. Volume 1: Geomagnetic and Related Phenomena and Volume 2: Analysis and Physical Interpretation of the Phenomena. 1049pp Both volumes in very nice condition in dust jackets. Name of previous owner on front endpapers. vg/vg. Item #41906
International Series of Monographs on Physics.