Scope and Contents Army notebook, inscribed on cover 'E. V. Appleton ii Lieut [Lieutenant] R. E. Electricity Notes' , c.1914-1921.Both ends of the item are used. At the front of the notebook, there are notes on electricity and magnetism, perhaps for lectures during First World War. In the middle, there is a sequence of pages (some numbered) of experiments on 'Oscillator with Leaking Grid Condenser', at Cambridge, 1920-21 (not all in Appleton's hand). At the rear of the notebook, there are press-cuttings on...

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Army notebook, with only a few pages and front cover remaining, c.1914-1918. Notes on differential equations, perhaps for lectures as Instructor in R. E. Signals [check what this means] during First World War.

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Black ring-bound notebook, c.1920-1921. The item contains notes and narratives of experiments on atmospherics and on Aperiodic Impulses. The work begins July 12 [1920] and continues to April 17 [1921].

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The item is a Hardback drawing book of graph paper, undated, c.1920. Both ends of the item are used. At the front there are graphs and calculations of valves and oscillators. At the rear are 12 monthly graphs, labelled January-December.

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Hardback notebook, inscribed inside ‘Victor Appleton St John's College, Cambridge. Magnetism and Electricity', undated (probably before 1919 with some later additions). Both ends of the notebook are used. It contains notes and calculations, perhaps of undergraduate work (Appleton usually signed himself ‘E.V. Appleton' after 1919). Some notes on negative ions, ionisation, etc. may be of a later date.