Letter 8073
Darwin, C. R. to Carus, J. V.
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CD offers to mark corrected passages in sheets of 6th edition of Origin.
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Discusses question of hybrids between goats and sheep, on which H. von Nathusius has cast doubt in his recent Viehzucht [1872]. CD gives several references for a contrary view.
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Asks JVC to inquire about HvN's assertion that castrated rams have no horns.