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August Friedrich Leopold Weismann FRS (For), HonFRSE, LLD (17 January 1834 – 5 November 1914) was a German evolutionary biologist. Fellow German Ernst Mayr ranked him as the second most notable evolutionary theorist of the 19th century, after Charles Darwin. Weismann became the Director of the Zoological Institute and the first Professor of Zoology at Freiburg.
His main contribution involved germ plasm theory, at one time also known as Weismannism, according to which inheritance (in a multicellular animal) only takes place by means of the germ cells—the gametes such as egg cells and sperm cells. Other cells of the body—somatic cells—do not function as agents of heredity. The effect is one-way: germ cells produce somatic cells and are not affected by anything the somatic cells learn or therefore any ability an individual acquires during its life. Genetic information cannot pass from soma to germ plasm and on to the next generation. Biologists refer to this concept as the Weismann barrier. This idea, if true, rules out the inheritance of acquired characteristics as proposed by Jean-Baptiste Lamarck. However, a careful reading of Weismann's work over the span of his entire career shows that he had more nuanced views, insisting, like Darwin, that a variable environment was necessary to cause variation in the hereditary material.The idea of the Weismann barrier is central to the modern synthesis of the early 20th century, though scholars do not express it today in the same terms. In Weismann's opinion the largely random process of mutation, which must occur in the gametes (or stem cells that make them) is the only source of change for natural selection to work on. Weismann became one of the first biologists to deny Lamarckism entirely. Weismann's ideas preceded the rediscovery of Gregor Mendel's work, and though Weismann was cagey about accepting Mendelism, younger workers soon made the connection.
Weismann is much admired today. Ernst Mayr judged him to be the most important evolutionary thinker between Darwin and the evolutionary synthesis around 1930–1940, and "one of the great biologists of all time".

Louis Raemaekers (April 6, 1869 – July 26, 1956) was a Dutch painter, caricaturist and editorial cartoonist for the Amsterdam newspaper De Telegraaf during World War I, noted for his anti-German stance.

Giovanni Placido Agostino Pascoli (Italian: [dʒoˈvanni ˈpaskoli]; 31 December 1855 – 6 April 1912) was an Italian poet, classical scholar and an emblematic figure of Italian literature in the late nineteenth century. Alongside Gabriele D'Annunzio, he was one of the greatest Italian decadent poets.

Edwin Muir CBE (15 May 1887 – 3 January 1959) was a Scottish poet, novelist and translator. Born on a farm in Deerness, a parish of Orkney, Scotland, he is remembered for his deeply felt and vivid poetry written in plain language and with few stylistic preoccupations.

Sir Peter Chalmers Mitchell (23 November 1864 – 2 July 1945) was a Scottish zoologist who was Secretary of the Zoological Society of London from 1903 to 1935. During this time, he directed the policy of the Zoological Gardens of London and created the world's first open zoological park, Whipsnade Zoo.

Pierre-Jules Renard (pronounced [pjɛʁ ʒyl ʁənaʁ]; 22 February 1864 – 22 May 1910) was a French author and member of the Académie Goncourt, most famous for the works Poil de carotte (Carrot Top, 1894) and Les Histoires Naturelles (Nature Stories, 1896). Among his other works are Le Plaisir de rompre (The Pleasure of Breaking, 1898) and the posthumously published Huit Jours à la campagne (A Week in the Country, 1912).

Pierre-Félix Louÿs (French: [pjɛʁ lu.is]; 10 December 1870 – 4 June 1925) was a French poet and writer, most renowned for lesbian and classical themes in some of his writings. He is known as a writer who sought to "express pagan sensuality with stylistic perfection". He was made first a Chevalier and then an Officer of the Légion d'honneur for his contributions to French literature.

Walter Michael Miller Jr. (January 23, 1923 – January 9, 1996) was an American science fiction writer. His fix-up novel, A Canticle for Leibowitz (1959), the only novel published in his lifetime, won the 1961 Hugo Award for Best Novel. Prior to its publication, he was a writer of short stories.

Hendrik Willem van Loon (January 14, 1882 – March 11, 1944) was a Dutch-American historian, journalist, and children's book author.

Arsène Houssaye (28 March 1815 – 26 February 1896) was a French novelist, poet and man of letters.