THE German edition of Dr. Hertwig's discursive treatise—“Präformation oder Epigenese?”—was so fully reviewed in these columns shortly after it appeared (vol. li. p. 265, 1895), that it is unnecessary ...
The Homunculus, Sir, in however low and ludicrous light he may appear, in this age of levity, to the eye of folly or prejudice;—to the eye of reason and scientifick research, ... consists as we do, of ...
In vertebrates, primordial germ cells — the ancestors of germ cells — can arise from one of two species-specific processes: epigenesis (that is, from pluripotent cells through induction by somatic ...
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