Hardback notebook, University of Western Australia, inscribed on cover 'E.V. Appleton (Univ. of Edinburgh) Ionosphere'., c. 1952

Hardback notebook, University of Western Australia, inscribed on cover 'E.V. Appleton (Univ. of Edinburgh) Ionosphere'. Notes, research ideas, notes of discussion meetings, on various topics including recombination, sunspot cycle, etc. no date, c. 1952, since this is when Appleton visited Australia for the URSI [Union Radio-Scientifique Internationale] conference.