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Brunton and Cash write: 'From a number of experiments we have found that caffein [caffeine] and theine both cause rigor in the voluntary muscles of frogs. All these experiments were made on Rana temporaria and none on Rana esculenta.'

Annotations in pencil and ink.

Subject: Physiology

Received 24 March 1887. Read 31 March 1887.

A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'Action of caffein and theine upon voluntary muscle'.

Reference number
Earliest possible date
Physical description
Ink and graphite pencil on paper
Page extent
3 pages

Creator names

Thomas Lauder Brunton

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John Theodore Cash

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Thomas Lauder Brunton, John Theodore Cash, Paper, 'Action of caffein and theine upon voluntary muscle' by T [Thomas] Lauder Brunton and J [John] Theodore Cash, 1887, PP/10/31, The Royal Society Archives, London,, accessed on 12 April 2024

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  • Proceedings Papers

    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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