Download or read book tudes Critiques sur les Mollusques Fossiles Vol 1 Classic Reprint written by Louis Agassiz and published by Forgotten Books. This book was released on 2017-03-06 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Etudes Critiques sur les Mollusques Fossiles, Vol. 1 L'ouvrage que je publie aujourd'hui sous le titre d'etudes critiques sur les Mollusques fossiles, doit embrasser une serie de Memoires rediges en vue d'eclairer plusieurs points controverses de Paleontologie; il comprendra diffe rentes Monographies de genres peu connus, ou dont les especes n'ont pas ete convenablement etudiees jusqu'ici. Je me suis surtout propose de discuter de nouveau la question de l'identite des especes fossiles des dill'erens terrains, et leurs rapports specifiques avec les especes vivantes, dans les diverses limites dans lesquelles on a successivement restreint leur analogie; mais cette discussion reposera avant tout sur un examen comparatif des objets eux-memes, plutot que sur des principes alternativement admis et repousses. Un autre point important sur lequel je desire fixer particulierement l'attention, c'est l'ex tension a' donner aux genres en general; et cette question me parait d'une haute importance 5 car autant on s'est applique a etudier les especes, autant on a neglige l'etude critique des genres preuve en est la diversite extreme d'opinions qui regne sur ce sujet entre les naturalistes. 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.
Download or read book tudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1842 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1840 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tudes Critiques sur les Mollusques Fossiles Vol 2 written by Louis Agassiz and published by Forgotten Books. This book was released on 2017-03-12 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Études Critiques sur les Mollusques Fossiles, Vol. 2: Contenant les Myes du Jura Et de la Craie Suisse Les coquilles dont nous allons nous occuper dans cette Monographie appartiennent à cette fa mille de la classe des Acéphales, que M. De Blainville désigne sous le nom de Pyloride'es, famille qui comprend tous les dimyaires de Lamarck, dont l'animal est entouré d'un manteau plus ou moins fermé, et prolongé en arrière en deux longs tubes ordinairement distincts, dont le supérieur sert aux déjections excrémentielles, et l'inférieur àla respiration. Au bord inférieur et antérieur du manteau se trouve une ouverture pour le passage d'un pied assez petit et généralement conique. 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.
Download or read book Suppl ment aux observations sur les tudes critiques des mollusques fossiles de M Agassiz written by Olry Terquem and published by . This book was released on 1856 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1845 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1840 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1840 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1845 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1980 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal de Conchyliologie 1904 Vol 52 written by H. Fischer and published by Forgotten Books. This book was released on 2018-02-22 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal de Conchyliologie, 1904, Vol. 52: Comprenant l'tude des Mollusques Vivants Et Fossiles Ce sont surtout les environs de T'touan qui ont le plus sp'cialement attir' notre attention. Nous avons pu faire des observations tr's curieuses sur la dispersion des esp'ces suivant la nature du terrain. C'est ainsi que dans la zone des poudingues d'voniens au Sud, 011 ne trouve absolument aucun Mollusque; en remontant vers le Nord Ouest 011 arrive la faille dans laquelle coule l'oued Kitan et qui marque la s'paration des poudingues au Sud et des calcaires et gr's au Nord. 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.
Download or read book Journal de Conchyliologie 1877 Vol 25 written by H. Crosse and published by Forgotten Books. This book was released on 2017-06-20 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal de Conchyliologie, 1877, Vol. 25: Comprenant l'Etude des Mollusques Vivants Et Fossiles Obs. Espece d'un rose clair, ornee d'une ligne spirale rousse, a la partie mediane des tours, et munie d'un epi (lerme non persistant, dont les poils sont fins et disposes en series obliquement longitudinales. 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.
Download or read book Journal de Conchyliologie Comprenant l tude des Mollusques Vivants Et Fossiles Vol 59 written by H. Fischer and published by Forgotten Books. This book was released on 2018-02-28 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal de Conchyliologie Comprenant l'Étude des Mollusques Vivants Et Fossiles, Vol. 59: Publié, de 1861 à 1898, Sous la Direction de Crosse Et Fischer Leurs catalogues, contenant les noms d'environ espèces sont envoyés franco aux conservateurs des Musées et aux clients. 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.
Download or read book M moire sur les Moules de Mollusques Vivans Et Fossiles Vol 1 written by Louis Agassiz and published by Forgotten Books. This book was released on 2017-06-24 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mémoire sur les Moules de Mollusques Vivans Et Fossiles, Vol. 1: Moules d'Acéphales Vivans Désirant arriver à quelque résultat précis sur cette importante question du développement génétique des Mollusques j'ai commencé par étudier la corrè lation de la coquille avec les parties molles de l'animal dans les espèces vivante's en cherchant à saisir les causes des nombreuses modifications de leurs formes et notamment de leur enroulement plus ou moins considérable dans un sens ou dans l'autre. 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.
Download or read book Etudes critiques sur les mollusques fossiles par L Agassiz written by Louis Agassiz and published by . This book was released on 1840 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tudes critiques zur les Mollusques fossiles written by Louis Agassiz and published by . This book was released on 1840 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etudes critiques sur les mollusques fossiles written by Louis Agassiz and published by . This book was released on 1840 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
