In 1868 Huxley studied an old sample of mud from the Atlantic seafloor taken in 1857.
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Huxley's rival George Charles Wallich, in turn, claimed that Huxley had committed deliberate fraud and also accused Haeckel of falsifying data; Haeckel did draw a series of pictures of the evolution of his Urschleim, supposedly based on observations.
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George Charles Wallich claimed that Bathybius was a product of chemical disintegration.