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Updated: June 21, 2025
I think you will agree with me, that it must have taken some time for the skeletons of animalcules of a hundredth of an inch in diameter to heap up such a mass as that. I have said that throughout the thickness of the chalk the remains of other animals are scattered. These remains are often in the most exquisite state of preservation.
Here I saw those anemones which cling, like little red, yellow, and green blobs of jelly, to the rocks, put forth, as it were, a multitude of arms and wait till little fish or other small animalcules unwarily touched them, when they would instantly seize them, fold arm after arm around their victims, and so engulf them in their stomachs.
I renewed my chemical experiments; I sought to invigorate my mind by other branches of science which I had hitherto less cultured, meditated new theories on Light and Colour, collected specimens in Natural History, subjected animalcules to my microscope, geological fossils to my hammer.
Thus, if you took some ordinary black pepper or some hay, and steeped it in water, you would find in the course of a few days that the water had become impregnated with an immense number of animalcules swimming about in all directions. From facts of this kind naturalists were led to revive the theory of spontaneous generation.
"No, he is drunk," replied Beaumarchais. "But, gentlemen, my dream has a meaning," cried the surgeon. "Oh! oh!" exclaimed Bodard, waking up; "my leg is asleep!" "Your animalcules must be dead," said his wife. "That man has a vocation," announced my little neighbor, who had stared imperturbably at the surgeon while he was speaking.
Not only men and horses, and cats and dogs, lobsters and beetles, periwinkles and mussels, but even the very sponges and animalcules commence their existence under forms which are essentially undistinguishable; and this is true of all the infinite variety of plants.
Under these circumstances no animalcules ever made their appearance a conclusive demonstration that rendered Needham's grounds for his theory at once untenable. Allied to these studies of spontaneous generation were Spallanzani's experiments and observations on the physiological processes of generation among higher animals.
Each one of ourselves has sprung from minute animalcules whose entity was entirely distinct from our own, and which acted after their kind with no thought or heed of what we might think about it. These little creatures are part of our own reproductive system; then why not we part of that of the machines? "But the machines which reproduce machinery do not reproduce machines after their own kind.
I think you will agree with me, that it must have taken some time for the skeletons of animalcules of a hundredth of an inch in diameter to heap up such a mass as that. I have said that throughout the thickness of the chalk the remains of other animals are scattered. These remains are often in the most exquisite state of preservation.
Yet another thing was noticed: if you took two flasks containing the same kind of infusion, and left one entirely exposed to the air, and in the mouth of the other placed a ball of cotton wool, so that the air would have to filter itself through it before reaching the infusion, that then, although you might have plenty of animalcules in the first flask, you would certainly obtain none from the second.
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