Let no one suppose, therefore, for a moment that we do not believe in progression, for we see it throughout nature; and we find it distinctly taught in Scripture as a matter of historical fact, both in creation and revelation. But the fact of progression is a totally different thing from the theory of Evolution; and it is extremely important that the distinction should be carefully borne in mind; for there are many, and some of them clear-headed men, who, because they see the three things—growth, variation, and progression, avow themselves believers in Evolution, though all the while they really reject what should be strictly termed “the Evolution theory.” What then is the theory of Evolution? What is it which Bishop Temple describes as “just at present the leading scientific doctrine,” {6a} and for which he says the evidence “is enormously great, and increasing daily”? {6b} It is extremely difficult to answer the question; for evolutionists themselves, although they are perpetually trumpeting forth the superiority of their scientific accuracy, very seldom take the trouble to tell us what they mean. In a defence of Mr. Drummond’s book, in the _Expositor_, the defender states, with reference to an article of my own in the CHURCHMAN of February last, that there are at least four theories of Evolution; and he also informs us which of the four it is that Mr. Drummond teaches. It is a pity that Mr. Drummond did not tell us this in his book, instead of leaving us to conclude, as some of us have concluded that it was the doctrine of Mr. Herbert Spencer that appeared to call forth his enthusiastic admiration. Bishop Temple speaks of “_the_ two theories of Evolution;” and what he does with the other two I do not know. He describes the one as that of La Place, and the other as that of Darwin; the former being a theory for the construction of the universe, and therefore by some called “Cosmical Evolution;” the other for the development of vegetable and animal life, and therefore termed “Biological Evolution.”