Burning Memory

Introduction-General ignorance on the subject of evolution at the time the "Origin of Species" was published in 1859.

There are few things which strike us with more surprise, when we review the course taken by opinion in the last century, than the suddenness with which belief in witchcraft and demoniacal possession came to an end. This has been often remarked upon, but I am not acquainted with any record of the fact as it appeared to those under whose eyes the change was taking place, nor have I seen any contemporary explanation of the reasons which led to the apparently sudden overthrow of a belief which had seemed hitherto to be deeply rooted in the minds of almost all men. As a parallel to this, though in respect of the rapid spread of an opinion, and not its decadence, it is probable that those of our descendants who take an interest in ourselves will note the suddenness with which the theory of evolution, from having been generally ridiculed during a period of over a hundred years, came into popularity and almost universal acceptance among educated people.

It is indisputable that this has been the case; nor is it less indisputable that the works of Mr. Darwin and Mr. Wallace have been the main agents in the change that has been brought about in our opinions. The names of Cobden and Bright do not stand more prominently forward in connection with the repeal of the Corn Laws than do those of Mr. Darwin and Mr. Wallace in connection with the general acceptance of the theory of evolution. There is no living philosopher who has anything like Mr. Darwin's popularity with Englishmen generally; and not only this, but his power of fascination extends all over Europe, and indeed in every country in which civilisation has obtained footing: not among the illiterate masses, though these are rapidly following the suit of the educated classes, but among experts and those who are most capable of judging. France, indeed-the country of Buffon and Lamarck-must be counted an exception to the general rule, but in England and Germany there are few men of scientific reputation who do not accept Mr. Darwin as the founder of what is commonly called "Darwinism," and regard him as perhaps the most penetrative and profound philosopher of modern times.

To quote an example from the last few weeks only, [2] I have observed that Professor Huxley has celebrated the twenty-first year since the "Origin of Species" was published by a lecture at the Royal Institution, and am told that he described Mr. Darwin's candour as something actually "terrible" (I give Professor Huxley's own word, as reported by one who heard it); and on opening a small book entitled "Degeneration," by Professor Ray Lankester, published a few days before these lines were written, I find the following passage amid more that is to the same purport:-

"Suddenly one of those great guesses which occasionally appear in the history of science was given to the science of biology by the imaginative insight of that greatest of living naturalists-I would say that greatest of living men-Charles Darwin."-Degeneration, p. 10.

This is very strong language, but it is hardly stronger than that habitually employed by the leading men of science when they speak of Mr. Darwin. To go farther afield, in February 1879 the Germans devoted an entire number of one of their scientific periodicals [3] to the celebration of Mr. Darwin's seventieth birthday. There is no other Englishman now living who has been able to win such a compliment as this from foreigners, who should be disinterested judges.

Under these circumstances, it must seem the height of presumption to differ from so great an authority, and to join the small band of malcontents who hold that Mr. Darwin's reputation as a philosopher, though it has grown up with the rapidity of Jonah's gourd, will yet not be permanent. I believe, however, that though we must always gladly and gratefully owe it to Mr. Darwin and Mr. Wallace that the public mind has been brought to accept evolution, the admiration now generally felt for the "Origin of Species" will appear as unaccountable to our descendants some fifty or eighty years hence as the enthusiasm of our grandfathers for the poetry of Dr. Erasmus Darwin does to ourselves; and as one who has yielded to none in respect of the fascination Mr. Darwin has exercised over him, I would fain say a few words of explanation which may make the matter clearer to our future historians. I do this the more readily because I can at the same time explain thus better than in any other way the steps which led me to the theory which I afterwards advanced in "Life and Habit."

This last, indeed, is perhaps the main purpose of the earlier chapters of this book. I shall presently give a translation of a lecture by Professor Ewald Hering of Prague, which appeared ten years ago, and which contains so exactly the theory I subsequently advocated myself, that I am half uneasy lest it should be supposed that I knew of Professor Hering's work and made no reference to it. A friend to whom I submitted my translation in MS., asking him how closely he thought it resembled "Life and Habit," wrote back that it gave my own ideas almost in my own words. As far as the ideas are concerned this is certainly the case, and considering that Professor Hering wrote between seven and eight years before I did, I think it due to him, and to my readers as well as to myself, to explain the steps which led me to my conclusions, and, while putting Professor Hering's lecture before them, to show cause for thinking that I arrived at an almost identical conclusion, as it would appear, by an almost identical road, yet, nevertheless, quite independently, I must ask the reader, therefore, to regard these earlier chapters as in some measure a personal explanation, as well as a contribution to the history of an important feature in the developments of the last twenty years. I hope also, by showing the steps by which I was led to my conclusions, to make the conclusions themselves more acceptable and easy of comprehension.

Being on my way to New Zealand when the "Origin of Species" appeared, I did not get it till 1860 or 1861. When I read it, I found "the theory of natural selection" repeatedly spoken of as though it were a synonym for "the theory of descent with modification"; this is especially the case in the recapitulation chapter of the work. I failed to see how important it was that these two theories-if indeed "natural selection" can be called a theory-should not be confounded together, and that a "theory of descent with modification" might be true, while a "theory of descent with modification through natural selection" [4] might not stand being looked into.

If any one had asked me to state in brief what Mr. Darwin's theory was, I am afraid I might have answered "natural selection," or "descent with modification," whichever came first, as though the one meant much the same as the other. I observe that most of the leading writers on the subject are still unable to catch sight of the distinction here alluded to, and console myself for my want of acumen by reflecting that, if I was misled, I was misled in good company.

I-and I may add, the public generally-failed also to see what the unaided reader who was new to the subject would be almost certain to overlook. I mean, that, according to Mr. Darwin, the variations whose accumulation resulted in diversity of species and genus were indefinite, fortuitous, attributable but in small degree to any known causes, and without a general principle underlying them which would cause them to appear steadily in a given direction for many successive generations and in a considerable number of individuals at the same time. We did not know that the theory of evolution was one that had been quietly but steadily gaining ground during the last hundred years. Buffon we knew by name, but he sounded too like "buffoon" for any good to come from him. We had heard also of Lamarck, and held him to be a kind of French Lord Monboddo; but we knew nothing of his doctrine save through the caricatures promulgated by his opponents, or the misrepresentations of those who had another kind of interest in disparaging him. Dr. Erasmus Darwin we believed to be a forgotten minor poet, but ninety-nine out of every hundred of us had never so much as heard of the "Zoonomia." We were little likely, therefore, to know that Lamarck drew very largely from Buffon, and probably also from Dr. Erasmus Darwin, and that this last-named writer, though essentially original, was founded upon Buffon, who was greatly more in advance of any predecessor than any successor has been in advance of him.