Papers and drafts by Edward Appleton on the E layer, c. 1964-1966

Papers and drafts by Edward Appleton on the E layer. The material consists of 'On Seasonal and Non-Seasonal Anomalies in the E Layer', 7 page typescript for a paper; ‘A Further Note on the E Layer Seasonal Anomaly', 3 pages of manuscript notes, dated March 1965 (These notes are reproduced in facsimile in the Journal of Atmospheric and Terrestrial Physics article from 1971); notes introducing the Gifford Lecture, April 1965, 3 pages, manuscript; and ‘Some Radio Reflections’, 2 drafts for the Geilo Lecture, 2 and 3 pages long, dated June 1965 (Appleton died in April 1965 and therefore did not complete this work); and correspondence from W.J.G. Beynon and W.E.J. Farvis to Lady Appleton about publication of the work, dated 1966.