Abstract
IN the above communication, Haywood and Moon stress the irregularity of reversal in the isolated hearts in my experiments, and suggest that the reversal of these hearts is due to their abnormal condition, or to random variations in their environment. It seems to me that the fundamental behaviour of these hearts is their repeated reversal and that it is the irregularity which is more likely to be an abnormality.
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Z. vergl. Physiol., 4, 607 (1926).
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MILLAR, R. Reversal of the Heart-beat in Tunicates. Nature 172, 41 (1953). https://doi.org/10.1038/172041a0
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DOI: https://doi.org/10.1038/172041a0
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