Background
Tiedemann was born at Cassel, the eldest son of Dietrich Tiedemann (1748–1803), a philosopher and psychologist of considerable repute.
(This is a reproduction of a book published before 1923. T...)
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(Der Anatom und Physiologe Friedrich Tiedemann (1781-1861)...)
Der Anatom und Physiologe Friedrich Tiedemann (1781-1861) beschäftigte sich vor allem mit dem Hirnaufbau der Säugetiere. Ihn interessierte insbesondere die embryonale Entwicklung des Gehirns bei Tieren und Menschen - seine Forschungsergebnisse zeigten, dass es tatsächlich ähnliche Entwicklungstendenzen gibt. Damit war er ein Pionier der Evolutionstheorie. Tiedemann war zunächst Professor für Zoologie in Landshut, später in Heidelberg. Hier traf er auf den Chemiker Leopold Gmelin, mit dem zusammen er den Verdauungsstoffwechsel bei Tieren erforschte. Tiedemann war ein überzeugter Naturwissenschaftler, die Naturphilosophie Schellings lehnte er ab. Der - für damalige Zeit - sehr liberal eingestellte Wissenschaftler weist in vorliegender Studie darauf hin, dass es keinen anatomischen Nachweis dafür gibt, dass es zwischen schwarzen und weißen Menschen einen geistigen Unterschied geben könnte.
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(Excerpt from Traité Complet de Physiologie de l'Homme, Vo...)
Excerpt from Traité Complet de Physiologie de l'Homme, Vol. 1: Physiologie Générale Et Comparée Mon but principal, en publiant ce Traité, a été d'offrir le tableau des principaux résultats fournis par les observations et expériences faites dans le domaine de la physiologie de l'homme il m'a paru d'autant plus utile de rassembler les faits physiologi ques, après avoir fait un choix parmi eux, qu'aucun travail général de ce genre n'a été entrepris depuis Haller,l et qu'une foule de recherches disséminées dans les recueils des sociétés savantes et dans les écrits périodiques, ne sont point connues ni appréciées autant qu'elles méritent de l'être. Pendant une: lon gue série d' années,j 'ai cherché autant que possible, 'a répéter les observations et expériences de mes contemporains, afin de les soumettre 'a l'épreuve de 'mes propres investigations. En les rapportant et les jugeant, je me suis attaché a être bref, clair, con séquer'1t et impartial. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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(This is a pre-1923 historical reproduction that was curat...)
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anatomist physiologist university professor
Tiedemann was born at Cassel, the eldest son of Dietrich Tiedemann (1748–1803), a philosopher and psychologist of considerable repute.
He graduated in medicine at Marburg in 1804, but soon abandoned practice.
Tiedemann spent most of his life as professor of anatomy and physiology at Heidelberg, a position to which he was appointed in 1816, after having filled the chair of anatomy and zoology for ten years at Landshut, and died at Munich. On his return to Germany he maintained the claims of patient and sober anatomical research against the prevalent speculations of the school of Lorenz Oken, whose foremost antagonist he was long reckoned. His remarkable studies of the development of the human brain, as correlated with his father"s studies on the development of intelligence, deserve mention.
Tiedemann was one of the first persons to make a scientific contestation of racism.
In his article entitled "On the Brain of the Negro, compared with that of the European and the Orang-outang" (1836), he argued based on craniometric and brain measures taken by him from Europeans and black men from different parts of the world that the then-common European belief that Negroes have smaller brains and are thus intellectually inferior is scientifically unfounded and based merely on the prejudice of travelers and explorers. Tiedemann was influenced by Jean-Baptiste Lamarck and accepted the transmutation of species.
Science historian Robert J. Richards has written that Tiedemann "joined the basic notion of species evolution, of a Lamarckian flavor, with the proposition that higher animals in their embryological development recapitulated the morphological stages of those lower in the scale."
In 2007, Brazilian geneticist Sergio Pena called Tiedemann an "anti-racist ahead of his time".
(This book was originally published prior to 1923, and rep...)
(Der Anatom und Physiologe Friedrich Tiedemann (1781-1861)...)
(This is a pre-1923 historical reproduction that was curat...)
(Excerpt from Traité Complet de Physiologie de l'Homme, Vo...)
(This is a reproduction of a book published before 1923. T...)
Royal Society; Royal Swedish Academy of Sciences]
He was elected member of the Royal Swedish Academy of Sciences in 1827.
Professor