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Picture No 10697545
Date May 1909
Description Jimmy the Bulldog at the Royal Society
Details

Jimmy, a Bulldog owned by Dr A.D.Waller, takes part in an experiment at the Royal Society, Burlington House, London. With one fore-leg and one hind-leg in separate pots of salt solution connected to Einthoven's string galvanometer, his heart-beat is recorded on a lime-lit sheet, a thread vibrating with each heart-beat. Several ladies in the audience also took part in the experiment, dipping their hands into the saline solution pots, and their hearts were found to be steadier than Jimmy's.
Source Drawing by S.Begg Illustrated London News 22 May 1909
Credit © Illustrated London News Ltd/Mary Evans
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