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The question as to the origin of mammals is not new, but one of a series of similar nature and difficulty. The origin of Birds, of Eeptiles, of Amphibians, and of Fishes really precede it, and offer less difficulties in solution. The answer to each,inmy opinion, belongs to the future, and how far it may profitably be sought in the present limited state of our knowledge is a fair question in itself.
Remarks in the general discussion on the Origin of Mammals at the International Congress of Zoology, Cambridge, England, August 25, 1898.
1 Remarks in the general discussion on the Origin of Mammals at the International Congress of Zoology, Cambridge, England, August 25, 1898.