Fiona Tweedie added Alberto's block 1.md  about 9 years ago

Commit id: b8d13aaa96c8898e4246f60c2e109e1f3f916d52

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When we look to the individuals of the same variety or sub-variety of our older cultivated plants and animals, one of the first points which strikes us, is, that **they generally differ much more from each other**, than do the individuals of any one species or variety in a state of nature.