Paul-Louis Simond (30 July 1858 – 3 March 1947) was a French physician, chief medical officer and biologist whose major contribution to science was his demonstration that the intermediates in the transmission of bubonic plague from rats to humans are the fleas Xenopsylla cheopis that dwell on infected rats.
Samuel Jean Pozzi (3 October 1846 – 13 June 1918) was a French surgeon and gynecologist. He was also interested in anthropology and neurology. He is remembered today for John Singer Sargent's portrait of him.
After studying medicine in Paris, Pozzi volunteered as a medic during the Franco-Prussian War. He later specialized in gynecological and abdominal surgery, establishing the first Chair of Gynecology in Paris in 1884, and performing the first gastroenterostomy in France. Pozzi was elected to the French Academy of Medicine in 1896, and co-founded the Revue de gynécologie et de chirurgie abdominale in 1897.
His personal life was marked by a tumultuous marriage, multiple affairs, and cultural interests, including friendships with notable figures such as Sarah Bernhardt and Marcel Proust. In the political arena, Pozzi served as a senator for his hometown, Bergerac, and supported the controversial Alfred Dreyfus during his trial. He died in 1918, when a disgruntled patient fatally shot him.
Félix Édouard Justin Émile Borel (French: [bɔʁɛl]; 7 January 1871 – 3 February 1956) was a French mathematician and politician. As a mathematician, he was known for his founding work in the areas of measure theory and probability.
Jean Louis Armand de Quatrefages de Bréau (10 February 1810 – 12 January 1892) was a French biologist.