Michel Eugène Chevreul was a French chemist and centenarian whose work contributed to significant developments in science, medicine, and art. Chevreul's early work with animal fats revolutionized soap and candle manufacturing and led to his isolation of the heptadecanoic (margaric), stearic, and oleic fatty acids. In the process, Chevreul became the first scientist to define the concept of a chemical compound and the first to formally characterize the nature of organic compounds; he is consequently considered a founder of modern organic chemistry.
Alphonse Milne-Edwards was a French mammalogist, ornithologist, and carcinologist. He was English in origin, the son of Henri Milne-Edwards and grandson of Bryan Edwards, a Jamaican planter who settled at Bruges.
Jean Louis Armand de Quatrefages de Bréau was a French biologist.
Baron Michel Edmond de Selys Longchamps was a Belgian Liberal Party politician and scientist. Selys Longchamps has been regarded as the founding figure of odonatology, the study of the dragonflies and damselflies. His wealth and influence enabled him to amass one of the finest collections of neuropteroid insects and to describe many species from around the world. His collection is housed in the Royal Belgian Institute of Natural Sciences.
Théodore Lacordaire or Jean Théodore Lacordaire was a Belgian entomologist of French extraction.
Jean Guillaume Audinet-Serville was a French entomologist, born on 11 November 1775 in Paris. He died on 27 March 1858 in La Ferté-sous-Jouarre.
Jean Pierre Mégnin was a French army veterinarian and entomologist. He is best known for his work with dogs in the field of cynology. He also contributed to the field of forensic entomology. He led experiments which unveiled the eight distinct waves of insect succession on corpses exposed to air. Similarly, he showed two waves of insect succession on corpses that are buried.
Louis Antoine Marie Joseph Dollo was a Belgian palaeontologist, known for his work on dinosaurs. He also posited that evolution is not reversible, known as Dollo's law. Together with the Austrian Othenio Abel, Dollo established the principles of paleobiology.
Pierre-Joseph van Beneden FRS FRSE FGS FZS was a Belgian zoologist and paleontologist.
Louis Charles Émile Lortet was a French physician, botanist, zoologist and Egyptologist who was a native of Oullins.
Charles Jules Edmée Brongniart was a French entomologist and paleontologist.
Alexandre Lacassagne was a French physician and criminologist who was a native of Cahors. He was the founder of the Lacassagne school of criminology, based in Lyon and influential from 1885 to 1914, and the main rival to Lombroso's Italian school.
Jules Aimé Battandier was a French botanist who was a native of Annonay, department of Ardèche. He was an authority on Algerian flora.
Léon Bertin was a French zoologist. He was born in the 14th arrondissement of Paris, and died in the Loir-et-Cher Department of France, in a car accident.
François Mocquard was a French herpetologist born in Leffond, Haute-Saône.
Alfred Louis Pierre Germain was a French malacologist born in Niort, department Deux-Sèvres.
Paul Gabriel Marie Gourret was a French zoologist remembered for his biological studies of marine fauna and his work in the fishing industry. Gourret also worked with algae.
Jean Baptiste François René Koehler was a French zoologist best known for his research of echinoderms.
Charles-François Fontannes, name sometimes given as Francisque Fontannes was a French paleontologist and stratigrapher.
