ABSTRACT
In the investigation of the electrocardiogram of the chick embryo the same technique has been employed as that already described by the author (1932). The only point of difference is that in the present experiments after a record had been taken through the shell, the shell was opened, the embryo exposed and the electrodes placed in the most favourable position for obtaining a record.
Copyright © 1933 The Company of Biologists Ltd.
1933
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