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On the contrary Haeckel's own scientific colleagues were the first to discover and publish the matter some time in the seventies, and in consequence excluded Haeckel from their circle. Why does Schmidt not mention here the names of Ruetimeyer, His, and Semper?
Those who desire to inform themselves of the nature and extent of the evidence bearing on these questions may consult the works of Ruetimeyer, Gaudry, Kowalewsky, Marsh, and the writer of the present article.
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