Bonnet , Charles


Bonnet , Charles
(1720–1793) Swiss naturalist
Born in Geneva, Switzerland, Bonnet studied law, gaining his doctorate in 1743. In the same year he was elected a fellow of the Royal Society for his work on regeneration in lower animals and his demonstration of breathing pores (stigmata or spiracles) in caterpillars and butterflies. He is chiefly remembered however for discovering parthenogenesis (reproduction without fertilization) in the spindle-tree aphid and for the ideas on evolution he proposed following this observation.
Bonnet believed all organisms are preformed and that the germs of every subsequent generation are contained within the female. Such thinking implied that species remain constant, leaving Bonnet to explain how species become extinct as evidenced by fossil remains. He argued that the Earth had experienced periodic catastrophes, each destroying many life forms, but the remaining species all evolved to some degree. (Bonnet was the first to use the term ‘evolution’ in a biological context.) Thus after the next catastrophe apes progress to men, and men become angels. The catastrophism theory was adopted by Georges Cuvier, and strongly influenced geological thinking until the 1820s.

Scientists. . 2011.

Look at other dictionaries:

  • Bonnet, Charles — ▪ Swiss philosopher and scientist born March 13, 1720, Geneva, Switz. died May 20, 1793, near Geneva       Swiss naturalist and philosophical writer who discovered parthenogenesis (reproduction without fertilization) and developed the catastrophe …   Universalium

  • BONNET, CHARLES DE —    Swiss naturalist and philosopher, born at Geneva; his studies as a naturalist gave a materialistic cast to his philosophy; though he did not deny the existence of mind, still less that of its sovereign Author, he gave to material impressions a …   The Nuttall Encyclopaedia

  • Боннэ Шарль / Bonnet, Charles — (1720 1793). Боннэ и Кондильяк прибегли к аналогии человека с оживляемой статуей. Кондильяк избегал психологии, но Боннэ писал о нервных флюидах и возбуждении нервных волокон. Возможно, он приблизил появление учения о «специфических энергиях… …   Психологическая энциклопедия

  • Charles Bonnet syndrome — Classification and external resources DiseasesDB 2349 Charles Bonnet syndrome (CBS) is a condition that causes patients with visual loss to have complex visual hallucinations, first described by Charles Bonnet in 1760[1 …   Wikipedia

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  • Charles Bonnet — (naturaliste) Pour les articles homonymes, voir Bonnet. Portrait de Charles Bonnet (1720 1793) Charles Bonnet, né le …   Wikipédia en Français

  • Charles Bonnet (Naturaliste) — Pour les articles homonymes, voir Bonnet. Portrait de Charles Bonnet (1720 1793) Charles Bonnet, né le …   Wikipédia en Français

  • Charles bonnet (naturaliste) — Pour les articles homonymes, voir Bonnet. Portrait de Charles Bonnet (1720 1793) Charles Bonnet, né le …   Wikipédia en Français

  • Charles Bonnet — Nacimiento 13 de marzo de 1720 Ginebra Fallecimiento 20 de mayo de 1793 …   Wikipedia Español

  • Charles Bonnet (Orientaliste) — Pour les articles homonymes, voir Bonnet. Charles Bonnet est né à Satigny, Suisse, le 15 mars 1933. Il est issu d une famille de viticulteurs dont il prend la succession du domaine en 1954, son diplôme de l École d Agriculture en poche …   Wikipédia en Français


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