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Grundzüge einer Theorie der phylogenetischen Systematik. Herausgegeben vom Deutschen Entomologischen Institut Berlin-Friedrichshagen. FIRST EDITION.

HENNIG, Willi

Published by Berlin: Deutscher Zentralverlag, 1950., 1950
Condition: Good Soft cover
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4 leaves, 370 pp; figs. Original wrappers. Piece of clear tape across top of spine. "Hennig" written in ink on spine (which is blank). Name inked over on front wrapper. Corners of wrappers and pages bumped (lowers corners more than upper). Paper yellowed. Good. First Edition. "With the beginning of war, in 1939, Hennig was called for military service. He was severely wounded, and in peril of his life, in Russia in 1942 and recovered for several months in diverse military hospitals. Subsequently he had been placed in the Military Medical Services, mainly in the malaria prevention program in Italy. World War II ended for German troops and all their associated services with their unconditional surrender on May 9, 1945. Though WH was a prisoner-of-war between May until October 1945, he was not held captive in an Allied camp. Rather he was immediately taken into the anti-malaria service of the British troops until his release from captivity. During this time at the end of the war, he wrote down the handwritten draft of his manuscript for the well-known 'Grundzüge' (published in 1950). . . . Hennig is best known for developing phylogenetic systematics, a coherent theory of the investigation and presentation of the relations that exist among species. Contrary to the position generally held during his time, Hennig viewed historical inference as a strictly logical and scientific endeavor (Dupuis, 1984). He first summarized his ideas in 1950, in Grundzüge einer Theorie der Phylogenetischen Systematik (Hennig, 1950) [offered here]. Hennig became even more widely known with the publication of an English revision, Phylogenetic Systematics (Hennig, 1966), of the earlier German work. Major Hennigian principles are: (1) Relationships among species are to be interpreted strictly genealogically, as sister-lineages, as clade relations. Empirically, a phylogenetic hypothesis may be determined. (2) Synapomorphies provide the only evidence for identifying relative recency of common ancestry. Synapomorphies are understood to be the shared-derived (evolved, modified) features of organisms. (3) Maximum conformity to evidence is sought (his auxiliary principle). Choice among competing cladistic propositions (cladograms) is decided on the basis of the greatest amount of evidence, the largest number of synapomorphies explainable as homologues. (4) Whenever possible, taxonomy must be logically consistent with the inferred pattern of historical relationships. The rule of monophyly is to be followed, thereby each clade can have its unique place in the hierarchy of taxonomic names" (Willi Hennig Society website). "Willi Hennig was drafted in 1938 to train for the infantry and concluded this course in 1939. As of the start of World War II, he was deployed in the infantry in Poland, France, Denmark and Russia. He was injured by grenade shrapnel in 1942 and was subsequently used as entomologist at the Institute for Tropical Medicine and Hygiene in Berlin, carrying the title 'Sonderführer Z'. Just before the war ended, he was sent to Italy to the 10th Army, Heeresgruppe C, to fight malaria and other epidemic diseases. At the end of the war in May 1945, he was captured by the British while he was with the Malaria training corps at the Gulf of Briest, and was only released in the autumn. Through his active participation in war as soldier and scientist Hennig was later subjected to accusations that he had been a member of the National Socialist party, especially by the Italian biologist and founder of panbiogeography, Leon Croizat. However, there is no evidence to support the claim. Hennig was never a member of the National Socialist party and did not support their views on any public occasion. During his time as prisoner of war, Hennig began to draft his most important contribution to systematics, not published until 1950. The rough draft was composed with pencil and ballpoint pen into an A4 exercise book, spanning 170 pages" (Wikipedia). Bookseller Inventory # 15674

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Bibliographic Details

Title: GrundzŁge einer Theorie der phylogenetischen...

Publisher: Berlin: Deutscher Zentralverlag, 1950.

Publication Date: 1950

Binding: Soft cover

Book Condition:Good

Edition: 1st Edition

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Scientia Books is a member of ABAA and ILAB, specializing in antiquarian books in medicine and science, as well as scholarly books in the history of medicine and the history of science.

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