On the Origin of Species, by Charles Darwin, Part 3
Boring Books for Bedtime Readings to Help You Sleep
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The Varieties of Various Plants
I look at the term species as one arbitrarily given for the sake of convenience to a set of individuals closely resembling each other. The term variety again, in comparison with mere individual differences, is also applied arbitrarily and for mere convenience sake. I shall reserve for my future work the discussion of these difficulties, and the tables themselves of the proportional numbers of the varying species. Dr. Hooker permits me to add that after having carefully read my manuscript and examined the tables he thinks that the following statements are fairly well-established.
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