Clemens (Artist); Ambroise Tardieu (Engraver) - Abraham Trembley. (B&W Engraving)

Paris : [19th Century European Publisher], [1800s?]. Original B&W gravure. 8.5 x 5.75 inches. Good. Toning throughout, particularly along edges. Text in French. Abraham Trembley, a Swiss naturalist, was born Sep. 3, 1710. In 1740, Trembley discovered a small freshwater organism, which he called a polyp, that he thought was new to science (in fact Leeuwenhoek had discovered it nearly 40 years before). Experimenting with his tiny tentacled beastie (which we now call a hydra), Trembley cut the organism in half, and discovered to his amazement that both halves could regenerate, producing two fully functional hydra from the incomplete pieces. Most scientists who did not see this with their own eyes would not believe it. So Trembley did a very clever thing. He found ways to keep the delicate organisms alive during long carriage rides, and he sent living specimens to the leading naturalists of Paris and London, with instructions on how to conduct the experiments. Trembley’s experiments were re-performed before the French Academy of Sciences and the Royal Society of London, and the hydra regenerated just as Trembley had promised. By thus using what one scholar has called this “strategy of generosity,” Trembley converted what might have been fierce critics into supporters. By the time his book came out, Mémoires pour servir ? l’histoire d’un genre de polypes d’eau douce (Memoirs on the natural history of a kind of freshwater polyp, 1744), he no longer had to battle skeptics, and Trembley was proclaimed everywhere as a master investigator of nature. .

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