WCP3903

Letter (WCP3903.3823)

[1]

Broadstone, Wimborne

Nov[embe]r. 10th 1905

Sir Joseph Dalton Hooker1

My dear Sir Joseph

I am writing to apologise for a great oversight. When I sent my publishers a list of persons who had contributed to my "Life,"2 in various ways, your name, which should have been first, was strangely omitted, and the omission was only recalled to me yesterday by reading your letters to Bates3 in Clodd's4 Edition of his Amazon book, which I have just purchased. I now send you a copy by Parcel [2] Post, in the hope that you will excuse the omission to send it sooner.

Now for a more interesting subject. I was extremely pleased and am greatly surprised, in reading your letters to Bates, to find that, at that early period (1862) you were extremely convinced of three facts which are absolutely essential to a comprehension of the method of organic evolution, but which many writers, even now, almost wholly ignore. They are (1) the universality and large amount of normal variability — (2) the [3] extreme rigour of natural selection, — and (3) that there is no adequate evidence for, and very much against, the inheritance of acquired characters.

It was only some years later when I began to write on the subject & had to think as to the exact mode of action of natural selection, that I myself arrived at (1) and (2) and have ever since dwelt upon them in season & out of season, as many will think — as being absolutely essential to a comprehension of organic evolution. The 3rd. I did not realize till I read Wiesmann.5 I have [4] never seen the sufficiency of normal variability for the modification of species more strongly or better put than in your letters to Bates. Darwin himself never realised it, and consequently played into the hands of the "discontinuous variation" and "mutation" men, by so continually saying "if they vary" — "without variation nat[ural] selec[tion] can do nothing: — &c. &c. Your argument, that variations are not caused by changes of environment is equally forcible & convincing. Has any body answered DeVries6 yet? F. Darwin7 lent me Prof. Hubrecht's8 Review from the Pop[ular] Sc[ience] Monthly — in which he claims that DeVries has proved that new species have always been produced from "mutations," never through normal variability, — & that Darwin latterly agreed with him! This is to me amazing! The Americans too accept DeVries as a second Darwin!

Yours very sincerely | Alfred R. Wallace [signature]

Preeminent British botanist and explorer Sir Joseph Dalton Hooker (1817 — 1911).
Wallace, A. R. 1905. My life: A record of events and opinions. London: Chapman and Hall.
Naturalist and explorer Henry Walter Bates (1825 — 1892). Bates' expedition to the Amazon had been in the company of ARW, and his subsequent work "The Naturalist on the River Amazon" (1863; John Murray: London).
Writer, anthropologist, and banker Edward Clodd (1840 — 1930). An avid supporter of the theory of evolution by natural selection, he wrote biographies of Darwin, Wallace, and Bates (as well as Herbert Spencer, proponent of 'social darwinism').
German evolutionary biologist Friedrich Leopold August Weismann (1834 — 1914), who first theorized that the propagation of inheritable traits is purely through germ cells.
Botanist and geneticist Hugo Marie de Vries (1848 — 1935). Rediscovered the laws of heredity independent of Mendel's work, and introduced the term 'mutation' as part of his theories on evolution.
Likely botanist Francis Darwin (1848 — 1925), a son of Charles Darwin.
Dutch zoologist Ambrosius Arnold Willem Hubrecht (1853 — 1915).

Published letter (WCP3903.6449)

[1] [p. 81]

TO SIR JOSEPH HOOKER

Broadstone, Wimborne. November 10, 1905.

My dear Sir Joseph, — I am writing to apologise for a great oversight. When I sent my publishers a list of persons who had contributed to "My Life" in various ways, your name, which should have been first, was strangely omitted, and the omission was only recalled to me yesterday by reading your letters to Bates in Clodd's edition of his Amazon book, which I have just purchased. I now send you a copy by parcel-post, in the hope that you will excuse the omission to send it sooner.

Now for a more interesting subject. I was extremely pleased and even greatly surprised, in reading your letters to Bates, to find that at that early period (1862) you were already strongly convinced of three facts which are absolutely essential to a comprehension of the method of organic evolution, but which many writers, even now, almost wholly ignore. They are (1) the universality and large amount of normal variability, (2) the extreme rigour of Natural Selection, and (3) that there is no adequate evidence for, and very much against, the inheritance of acquired characters.

It was only some years later, when I began to write on the subject and had to think out the exact mode of action of Natural Selection, that I myself arrived at (1) and (2), and have ever since dwelt upon them — in season and out of season, as many will think — as being absolutely essential to a comprehension of organic evolution. The third I did not realise till I read Weismann. I have never seen the sufficiency of normal variability for the modification of species more strongly or better put than in your letters to Bates. Darwin himself never realised it, and consequently played into the hands of the "discontinuous [2] variation" and "mutation" men, by so continually saying "if they vary" — "without variation Natural Selection can do nothing," etc.

Your argument that variations are not caused by change of environment is equally forcible and convincing. Has anybody answered de Vries yet?

F. Darwin lent me Prof. Hubrecht's review from the Popular Science Monthly, in which he claims that de Vries has proved that new species have always been produced from "mutations," never through normal variability, and that Darwin latterly agreed with him! This is to me amazing! The Americans too accept de Vries as a second Darwin! — Yours very sincerely, ALFRED R. WALLACE.

Please cite as “WCP3903,” in Beccaloni, G. W. (ed.), Ɛpsilon: The Alfred Russel Wallace Collection accessed on 2 May 2024, https://epsilon.ac.uk/view/wallace/letters/WCP3903