HAECKEL, ERNST: - Ursprung Und Entwicklung Thierischer Gewebe. Ein Histogenetischer Beitrag Zur Gastrea-Theorie.

. Separat-Abbruck [ = offprint ] aus der Jen. Ueitschrift für Naturwissenschaft, Bd. XVIII N.F. XI. Bd. - Jena, Gustav Fischer, 1884, 8°, [4]71 pp. no front cover. With a signed dedication by the author to Dr. Rudolf Buri dated Jena, 4.8.1894. First Edition! Ernst Heinrich Haeckel (1834-1919), prominent German biologist, zoologist, and philosopher. He studied medicine and natural philosophy at Würzburg, Berlin, and Vienna, and became professor of zoology, Jean (1865-1908). He is famous for his work on a number of scientific expeditions to Canary Islands (1866-67), Red Sea (1873), Ceylon (1881-82), Java (1900-01), among others. Haeckel was the first German advocate of organic evolution and early supporter of Darwin and evolution. Haeckel enunciated biogenetic law that in the development of the individual animal the stages in the evolutionary history of the postulating species are repeated, postulating as illustration a hypothetical ancestral form (gastraea) represented by the gastrula stage of the individual; first to draw up a genealogical tree relating the various animal orders. His works include Monographie der Radiolaren (1862), Generelle Morphologie der Organismen (1866), Naturliche Schopfungsgeschichte Anthropogenie order Entwicklungsgeschichte (1868), des Menschen (1874), Studien zur Gastraeatheorie (1877), Monismus als Band zwischen Religion und Wissenschaft (1892), and Weltratzel (1899). DIF DSB.

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