The Orgin of Vertebrates

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The way in which vertebrates arose on the earth as suggested in this book carries with it many important far-reaching conclusions with respect to the whole problem of Evolution.The evidence given in this book dealing with the origin of vertebrates strikes at the foundations of this belief, for it presents an image of the sequence of evolution of animal forms in orderly upward progress, caused by the struggle for existence among the members of the race dominant at the time, which brought about th