. Journal of morphology. Fig. 17 Embryo of Fundulus heteroclitus thirty-one days old, raised in 50cc. sea water + 2 cc. per cent NaCN. 14 JACQUES LOEB HeartBeating. Fig. 18 Embryo of Fundulus heteroclitus thirty-one days old, raised in 50 water + 2 cc. per cent NaCN. HEREDITY IN HETEROGENEOUS HYBRIDS 15

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Keywords: ., bookcentury1900, bookdecade1, booksubjectphysiology, bookyear1912