Intellect in Brutes

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MR. HENSLOW'S question (NATURE, vol. xix. p. 433) reminds me of the celebrated carp and bucket of water problem, put by King Charles the Second. He had better have put it thus—“Did ever a person know a dog (or other animal) ring a bell to bring a servant, &c.” How can any one tell if an animal goes through any “process of reasoning,” save by the results? What will Mr. Henslow say to the following, for which I can vouch, as can others now living? For my part, having watched animals since my childhood, I am fully convinced of their “powers of reasoning” to a certain extent.

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LAYARD, E. Intellect in Brutes. Nature 20, 338–339 (1879) doi:10.1038/020338d0

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