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Updated: June 8, 2025
After considering these rare instances of more widely known reversions, we may now examine the question of atavism from a broader point of view. But in doing so it should once more be remembered, that all cases of hybridism and also all varieties sporting annually or frequently, are to be wholly excluded.
To the former category belong the hosts of instances of malformation through arrest of development, and perhaps generally monstrosities of some sort are the result of such affections of the embryo. To the second category belong all cases of hybridism, of cross breed, and in all probability the new varieties and forms, such as the memorable one of the black-shouldered peacock.
Hybridism causes a fault in the chain of memory, and it is to this cause that the usual sterility of hybrids must be referred.
But, nevertheless, I unquestionably found a good deal of what may be called national hybridism in St. Meuse. I used to buy photographs of a shopkeeper over whose door was blazoned the Scottish name Macfarlane. Outwardly Macfarlane was a "hielanman" all over.
Here are the phenomena of Hybridism staring you in the face, and you cannot say, 'I can, by selective modification, produce these same results. Now, it is admitted on all hands that, at present, so far as experiments have gone, it has not been found possible to produce this complete physiological divergence by selective breeding.
We have Cuvier and the mummies; M. Roulin and the domesticated animals of America; the difficulties presented by hybridism and by Palaeontology; Darwinism a rifacciamento of De Maillet and Lamarck; Darwinism a system without a commencement, and its author bound to believe in M. Pouchet, &c. &c. How one knows it all by heart, and with what relief one reads at p. 65 "Je laisse M. Darwin!"
The chapters on Variation, on the Struggle for Existence, on Instinct, on Hybridism, on the Imperfection of the Geological Record, on Geographical Distribution, have not only no equals, but, so far as our knowledge goes, no competitors, within the range of biological literature.
We have Cuvier and the mummies; M. Roulin and the domesticated animals of America; the difficulties presented by hybridism and by Palæontology; Darwinism a rifacciamento of De Maillet and Lamarck; Darwinism a system without a commencement, and its author bound to believe in M. Pouchet, &c. &c. How one knows it all by heart, and with what relief one reads at p. 65 "Je laisse M. Darwin!"
The chapters on Variation, on the Struggle for Existence, on Instinct, on Hybridism, on the Imperfection of the Geological Record, on Geographical Distribution, have not only no equals, but, so far as our knowledge goes, no competitors, within the range of biological literature.
But if the eclecticism is a convenient and agreeable attitude for its champions, it is, like hybridism, sterile, and neither life nor science owe anything to it.
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