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On the Nature of Things, by Lucretius
Plaintext for Adam Smith's "The Wealth of Nations"
Sample Image of a Butterfly
On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life, by Charles Darwin
Thermochemical properties for 133885 small organic molecules with up to nine atoms, not counting hydrogen
Dataset of the transcriptional regulation network of Escherichia coli