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Updated: April 30, 2025
The bare enumeration of the names of the men who were the great lights of science in the latter part of the eighteenth and the first decade of the nineteenth century, of Herschel, of Laplace, of Young, of Fresnel, of Oersted, of Cavendish, of Lavoisier, of Davy, of Lamarck, of Cuvier, of Jussieu, of Decandolle, of Werner and of Hutton, suffices to indicate the strength of physical science in the age immediately preceding that of which I have to treat.
Thus the darker color of the skin of tropical human races would be viewed by Buffon as the cumulative result of the sun's direct effects. Lamarck laid greater stress upon the indirect or functional variations due to the factors of use and disuse, and he also assumed as self-evident that such effects were transmissible as "acquired characters."
It is rather hard to say what these words imply; they may mean anything from a baby to an apple dumpling, but if they imply that Lamarck drew inspirations from the gradual development of the mechanical inventions of man, and from the progress of man's ideas, I would say that of all sources this would seem to be the safest and most fertile from which to draw.
Without going too far back into history, let us look towards the end of the last century and the beginning of this. Cuvier, Lamarck, and Geoffroy Saint-Hilaire, all preoccupied with general ideas, were each trying to build up a doctrine. The theory of evolution was born beneath the pen of Lamarck, but immediately fell under the attacks of Cuvier.
On the other hand, from his ignorance of any power in Nature competent to modify the structure of animals, except the development of parts, or atrophy of them, in consequence of a change of needs, Lamarck was led to attach infinitely greater weight than it deserves to this agency, and the absurdities into which he was led have met with deserved condemnation.
But Lamarck, the elder Darwin, Monboddo, and others had submitted hypotheses of evolution. Now it was part of the originality of Tennyson, as a philosophic poet, that he had brooded from boyhood on these early theories of evolution, in an age when they were practically unknown to the literary, and were not patronised by the scientific, world.
Cunningham has left it to me whether to correct my omission publicly or not, but he would so plainly prefer my doing so that I consider myself bound to insert this note. Curiously enough, I find that in my book Evolution, Old and New I gave what Lamarck actually said upon the eyes of flat-fish, and, having been led to return to the subject, I may as well quote his words. He wrote:
But the "Vestiges of Creation," published in 1844, had already popularized the resuscitated theories of Lamarck. It seems as if Emerson had a warning from the poetic instinct which, when it does not precede the movement of the scientific intellect, is the first to catch the hint of its discoveries.
On critically examining the evidence, we shall find reason to think that it by no means explains all that has to be explained. Omitting for the present any consideration of a factor which may be distinguished as primordial, it may be contended that the above-named factor alleged by Dr. Erasmus Darwin and by Lamarck, must be recognized as a co-operator.
Our work for the Belgians did not cease with the closing of Lamarck, and a convoy was formed with the Gare Centrale as its headquarters, and so released the men drivers for the line.
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