La Feuille Des Jeunes Naturalistes
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Feuille Des Jeunes Naturalistes 1883 1884 Vol 14 Classic Reprint
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Author :
language : fr
Publisher: Forgotten Books
Release Date : 2018-09-10
Feuille Des Jeunes Naturalistes 1883 1884 Vol 14 Classic Reprint written by and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-10 with Science categories.
Excerpt from Feuille des Jeunes Naturalistes, 1883-1884, Vol. 14 Le R. Neptum' estun fossile constitué par un disque un peu infundibulifnrme, à contours assez peu réguliers, dont l'épaisseur est ordinairement d'une quinzaine de millimètres, et dont le diamètre atteint souvent 12 centimètres. Sur une coupe du disque la structure apparaît presque toujours assez nettement. Il est constitué par des plaques rhomboïdales minces, juxtaposées par leurs bords et disposées en deux couches, dont l'une forme la face concave du disque et l'autre sa face opposée. L'espace compris entre ces deux couches est traversé peu: des colonnettes perpendiculaires à celles-ci et reliant entre elles les plaques deux à deux. Les plaques losangiques de_ la surface externe convexe sont orientées de telle manière qu'elles constituent des séries excentriques qui partent du centre où elles sont très petites, pour aboutir à la périphérie, où leurs dimensions sont bien plus considérables. Le centre de ces plaques est bosselé; il en résulte que la surface des Réceptaculites est marquée de séries excentriques de mamelons. A une étude approfondie, ces plaques se montrent formées de trois couches, l'une externe, charbonneuse (que je suppose ètre due à la carbonisation lente d'une enveloppe cellulosique existant chez l'individu vivant), au-dessous de laquelle se trouvent deux couches constituées par du calcaire spathique. La face concave du corps de ces ètres, ainsi queje l'ai dit, est également limitée par des plaques rhomboïdales. 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.
Feuille Des Naturalistes
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Author :
language : fr
Publisher:
Release Date : 1874
Feuille Des Naturalistes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1874 with categories.
La Feuille Des Jeunes Naturalistes
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Author :
language : fr
Publisher:
Release Date : 1873
La Feuille Des Jeunes Naturalistes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1873 with Natural history categories.
Feuille Des Jeunes Naturalistes 1888 1889
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Author : A. Dollfus
language : fr
Publisher: Forgotten Books
Release Date : 2018-04-30
Feuille Des Jeunes Naturalistes 1888 1889 written by A. Dollfus and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-30 with categories.
Excerpt from Feuille des Jeunes Naturalistes, 1888-1889: Année 19-20 La marche de lafeuille, pendant la dix - huit1eme année, a été très satisfaisante; le chiffre Croissant de nos abonnés nous a permis d'augmenter le nombre des planches et nous avons l'espoir de voir ces progrès s'affirmer encore davantage pendant la dix-neuvième année, grâce au concours de tous ceux qui s'intéressent à notre oeuvre de propagande scientifique. Nous avons pu également accorder une subvention importante au Cata logue de la Bibliothèque et faire un certain nombre d'acquisitions de livres. Le nombre des publications scientifiques que nous recevons s'élève à plus de cent soixante dix et celui des ouvrages qui nous ont été offerts dans le courant de l'année est de près de six cents, la plupart consistant en dons d' auteurs. 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.
La Feuille Des Jeunes Naturalistes
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Author :
language : en
Publisher:
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La Feuille Des Jeunes Naturalistes
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Author : Hardpress
language : en
Publisher: Hardpress Publishing
Release Date : 2013-12
La Feuille Des Jeunes Naturalistes written by Hardpress and has been published by Hardpress Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12 with categories.
Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.
Bulletin
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Author : Société d'Étude des Sciences Naturelles d'Elbeuf
language : fr
Publisher:
Release Date : 1898
Bulletin written by Société d'Étude des Sciences Naturelles d'Elbeuf and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1898 with categories.
Bulletin
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Author : Société linnéenne du Nord de la France, Amiens
language : fr
Publisher:
Release Date : 1881
Bulletin written by Société linnéenne du Nord de la France, Amiens and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1881 with categories.
La Feuille Des Jeunes Naturalistes
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language : en
Publisher:
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La Feuille Des Jeunes Naturalistes 1876 1878
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Author :
language : fr
Publisher: Forgotten Books
Release Date : 2016-08-03
La Feuille Des Jeunes Naturalistes 1876 1878 written by and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-03 with Science categories.
Excerpt from La Feuille des Jeunes Naturalistes, 1876-1878: Vol; 7-8 Albida. La chenille est grosse pour sa longueur; elle a la tete noire et tres lu'isante, les premiers anneaux d'un brun nonratre avec le bord blanchatre ou plutot d'un lilas tres clair; le reste du corps d'un brun clair, un peu vineux. Les pattes, ecailleuses, sont noires. Vit de graminees Poa annua et trivialis, dans les localites montagneuses. Mars, avril et mai; fourreau de mousse ou de paille. Je l'ai trouve meme en plaine dans les localites arides. 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."