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Between 1907 and 1908 an investigation was undertaken at the Meteorological Office of the Government of India, Simla, into the electrical phenomena which accompany rain and thunderstorms. Two lines of research were adopted: firstly, a systematic record was obtained by means of self-registering instruments of the electricity brought down by the rain throughout one rainy season; secondly, laboratory experiments were made with the object of determining the source of the electricity of thunderstorms. Simpson relays the results of these experiments.

Annotations in pencil and ink throughout.

Subject: Physics / Meteorology

Received 6 January 1909. Read 4 February 1909. Communicated by Dr Gilbert T [Thomas] Walker.

A version of this paper was published in volume 82 of the Proceedings of the Royal Society A as 'On the electricity of rain and its origin in thunderstorms.'

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Ink and graphite pencil on paper
Page extent
111 pages

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George Clarke Simpson

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George Clarke Simpson, Paper, 'On the electricity of rain and its origin in thunderstorms' by G C [George Clarke] Simpson, 1909, AP/78/6, The Royal Society Archives, London,, accessed on 13 April 2024

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