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Engraved portrait of Pierre Simon Laplace, done by Tony Goutiere (1808-1890), after original done by French painter Jean-Claude Naigeon (1753-1832), as drawn by Mlle. Houssaye. The French mathematician and astronomer gave us the Laplacian differential operator in applied mathematics. Paris editor, Gauthier-Villars. Formerly 50.10-17 Portrait also reproduced in v. 1 of Laplace complete works, 1878. No Date