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Browse the Entire Original Sources Database
Babbage, Charles, 1791-1871
Bacon, Francis, 1561-1626
Descartes, Rene, 1596-1650
Huxley, Thomas Henry, 1825-1895
Kant, Immanuel, 1724-1804
Leonardo, da Vinci, 1452-1519
Oliver, Charles A. (Charles Alexander), 1858-1932
Rumford, Benjamin, Graf von, 1753-1814
Tyndall, John, 1820-1893
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