A. If she succeeds in finding any experience of her own at all resembling in its effects the effect which the infant shows, she considers she has proved causation, has established a good case of prenatal influence.
B. When the child is born with any peculiar characteristic, the mother hunts for some experience in the preceding months that might explain it.
C. That Darwin gave the true explanation of a great many of the alleged cases is perfectly clear to us.
D. It is not causation; it is coincidence.