Léon Bloy (French pronunciation: [leɔ̃ blwa]; 11 July 1846 – 3 November 1917) was a French Catholic novelist, essayist, pamphleteer (or lampoonist), and satirist, known additionally for his eventual (and passionate) defense of Catholicism and for his influence within French Catholic circles.
Sir Alfred Mellor Watkin, 2nd Baronet (11 August 1846 – 30 November 1914) was a Liberal Party politician and railway engineer.
Paul-Louis Rougnon (24 August 1846 – 11 December 1934) was a French composer, pianist and music educator.
Eugen Baumann (12 December 1846 – 3 November 1896) was a German chemist. He was one of the first people to create polyvinyl chloride (PVC), and, together with Carl Schotten, he discovered the Schotten-Baumann reaction.
Étienne Bazeries (21 August 1846, in Port Vendres – 7 November 1931, in Noyon) was a French military cryptanalyst active between 1890 and the First World War. He is best known for developing the "Bazeries Cylinder", an improved version of Thomas Jefferson's cipher cylinder. It was later refined into the US Army M-94 cipher device. Historian David Kahn describes him as "the great pragmatist of cryptology. His theoretical contributions are negligible, but he was one of the greatest natural cryptanalysts the science has seen." (Kahn 1996, p244)
Bazeries was born in Port-Vendres, France, the son of a mounted policeman. In 1863 he enlisted in the army, and fought in the Franco-Prussian War, where he was taken prisoner, although he later managed to escape disguised as a bricklayer. In 1874 he was promoted to lieutenant, and sent to Algeria in 1875. He returned to France the following year and married Marie-Louise-Elodie Berthon, with whom he would father three daughters: Césarine, Fernande and Paule.
He apparently became interested in cryptography through solving cryptograms in newspapers' personal columns, and soon applied his cryptanalytic skills in a military context when, in 1890, he solved messages enciphered with the official French military transposition system, causing the War Ministry to change to a new scheme. In an effort to prompt reform within the government and enhance national security, Bazeries further exposed weaknesses in French cipher systems. In 1891, news of his talent had spread, and he began work for the Ministry of Foreign Affairs' Bureau du Chiffre. Bazeries continued his cryptanalytic work there even after he retired from the Army in 1899, assisting in solving German military ciphers during World War I. However, many of Bazeries recommendations to the government for improvements in official cipher systems met severe bureaucracy and rebuffs, which became a constant source of frustration for him in an otherwise illustrious career. He retired in 1924, aged 78.
In the 1890s he broke a famous nomenclator system called the "Great Cipher", created by the Rossignols in the 17th century. One of the messages referred to the famous Man in the Iron Mask and provided a possible solution to the mystery. His influential 1901 text Les Chiffres secrets dévoilés ("Secret ciphers unveiled") is considered a landmark in cryptographic literature.
François J. Terby (9 August 1846 – 20 March 1911) was a Belgian astronomer. He had a private observatory at Leuven, Belgium and was an early ardent advocate of the existence of Martian canals.He collected drawings of Mars and wrote the work Aréographie in 1875. He tracked down the Mars drawings of Johann Hieronymus Schröter and deposited them at Leiden University, where they would eventually finally be published in 1881.
A crater on Mars (Terby) is named after him.
Charles Achille Müntz (10 August 1846 – 20 February 1917) was a French agricultural chemist.
Jean-Pierre Morat (18 April 1846 – 25 July 1920) was a French physiologist born in Saint-Sorlin, department Saône-et-Loire.
He studied medicine at École de médecine de Lyon, traveling to Paris in 1873, where he presented his dissertation-thesis on bone marrow, "Contributions à l’étude de la moelle osseuse". He remained in Paris for three years, working in the laboratory of Claude Bernard (1813–1878), of whom, Morat became a devoted disciple. In Paris, he worked closely with veterinarian Henri Toussaint (1847–1890) and physiologist Albert Dastre (1844–1917). With Toussaint, he collaborated on "Les variations de l’état électrique des muscles" (Variations of the electrical state of muscles), and with Dastre, he undertook extensive research of the sympathetic nervous system. With Dastre, the "Dastre-Morat Law" is derived, a dictum which states that "the vasoconstriction of the capillaries of the body surface is usually accompanied by vasodilation of the internal vessels, especially of the viscera, and vice-versa".
Following his years spent in Paris, he became an instructor of physiology at the faculty of medicine in Lille. In 1882 he was appointed professor of physiology at the faculty of medicine in Lyon, a position he maintained until his retirement in 1916. In 1883 he was admitted to the Société de biologie, and in 1904 was elected as a correspondent to the Académie de Médecine. In 1916 he became a correspondent of the Académie des sciences.
Morat had a keen interest in the field of surgery, being credited for introducing a process of administering morphine and atropine to a patient prior to the administration of anesthesia. Among his better known writings was the six volume "Traité de physiologie" (1904), a work that was co-written with a former student of his, Maurice Doyon (1869–1934).
Antoine-Fortuné Marion (10 October 1846 – 22 January 1900) was a French naturalist with interests in geology, zoology, and botany. He was also a competent amateur painter.
A school friend of Paul Cézanne's in Aix-en-Provence, Marion went on to become professor and director of the Natural History Museum in Marseille. Cézanne painted his portrait in 1866–1867 at the Bastide du Jas de Bouffan.
He received his higher education in Marseille, earning his arts and letters degree in 1866 and his degree in sciences in 1868. In 1878 he opened a marine laboratory with financial assistance provided by the city of Marseille, which led in 1882 to the building of the Marine Station of Endoume. In 1880 he became director of the Muséum d’histoire naturelle de Marseille.He was a good friend of Gaston de Saporta, with whom he collaborated on works in the field of botany. As a zoologist, his research included studies of segmented marine worms, free-living roundworms of the Mediterranean, nemerteans, rotifers, zoantharians, alcyonarians, parasites that affected crustaceans and investigations of the class Enteropneusta. As a result of his work in the fight against Phylloxera (an aphid-like pest), he was given awards by the French and foreign governments.He was a founder of the publication "Annales du Musée d'histoire naturelle de Marseille".His painting The Village Church now belongs to the Fitzwilliam Museum.
Paul Héger (1846–1925) was a Belgian biologist, and was born to Constantin Héger and Claire Zoë Parent.
Paul Hèger assisted Earnest Solvay (famous for Solvay Process) along with Hendrik Lorentz (Dutch physicist who shared noble with Pieter Zeeman for Zeeman effect) in the formation of Solvay enterprise who arrange Solvay conferences.
Hèger was professor at Universitè Libre de Bruxelles and a close collaborator of Ernest Solvay. He wrote in 1912 the rules of institute of Physics with Dutch physicist Hendrick Lorentz 1902 Nobel Laureate.