Abstract
Palæontology is the biology of fossils. The palæontologist, therefore, is bound to consider modern biological views in order that he may test them in the light of his science. It is intended here to apply to one class of fossils the fundamental principles upheld in a remarkable work by the late H. M. Bernard, entitledSome Neglected Factors in Evolution, really two books under one cover, the first dealing with the ultimate structure of protoplasm and the second with a method of organic evolution. The principles underlying the first suggest the methods of the second; so that in approaching the second a thorough knowledge of the first is needful. Before applying it let us examine the theory itself.

This publication has 5 references indexed in Scilit: