Although the battle[229] of Evolution was not yet won, the growth of belief was undoubtedly rapid. So that, for instance, Charles Kingsley could write to F. D. Maurice[230]:

"The state of the scientific mind is most curious; Darwin is conquering everywhere, and rushing in like a flood, by the mere force of truth and fact."

The change did not proceed without a certain amount of personal bitterness. My father wrote in February, 1863:—

"What an accursed evil it is that there should be all this quarrelling within what ought to be the peaceful realms of science."

I do not desire to keep alive the memories of dead quarrels, but some of the burning questions of that day are too important from the biographical point of view to be altogether omitted. Of this sort is the history of Lyell's conversion to Evolution. It led to no flaw in the friendship of the two men principally concerned, but it shook and irritated a number of smaller people. Lyell was like the Mississippi in flood, and as he changed his course, the dwellers on the banks were angered and frightened by the general upsetting of landmarks.

C. D. to J. D. Hooker. Down, Feb. 24 [1863].

My dear Hooker,—I am astonished at your note. I have not seen the Athenæum,[231] but I have sent for it, and may get it to-morrow; and will then say what I think.

I have read Lyell's book. [The Antiquity of Man.] The whole certainly struck me as a compilation, but of the highest class, for when possible the facts have been verified on the spot, making it almost an original work. The Glacial chapters seem to me best, and in parts magnificent. I could hardly judge about Man, as all the gloss and novelty was completely worn off. But certainly the aggregation of the evidence produced a very striking effect on my mind. The chapter comparing language and changes of species, seems most ingenious and interesting. He has shown great skill in picking out salient points in the argument for change of species; but I am deeply disappointed (I do not mean personally) to find that his timidity prevents him giving any judgment.... From all my communications with him, I must ever think that he has really entirely lost faith in the immutability of species; and yet one of his strongest sentences is nearly as follows; "If it should ever[232] be rendered highly probable that species change by variation and natural selection," &c. &c. I had hoped he would have guided the public as far as his own belief went.... One thing does please me on this subject, that he seems to appreciate your work. No doubt the public or a part may be induced to think that, as he gives to us a larger space than to Lamarck, he must think that there is something in our views. When reading the brain chapter, it struck me forcibly that if he had said openly that he believed in change of species, and as a consequence that man was derived from some Quadrumanous animal, it would have been very proper to have discussed by compilation the differences in the most important organ, viz. the brain. As it is, the chapter seems to me to come in rather by the head and shoulders. I do not think (but then I am as prejudiced as Falconer and Huxley, or more so) that it is too severe; it struck me as given with judicial force. It might perhaps be said with truth that he had no business to judge on a subject on which he knows nothing; but compilers must do this to a certain extent. (You know I value and rank high compilers, being one myself!)

The Lyells are coming here on Sunday evening to stay till Wednesday. I dread it, but I must say how much disappointed I am that he has not spoken out on species, still less on man. And the best of the joke is that he thinks he has acted with the courage of a martyr of old. I hope I may have taken an exaggerated view of his timidity, and shall particularly be glad of your opinion on this head. When I got his book I turned over the pages, and saw he had discussed the subject of species, and said that I thought he would do more to convert the public than all of us, and now (which makes the case worse for me) I must, in common honesty, retract. I wish to Heaven he had said not a word on the subject.