Download or read book On the Origin of the Subterranean Fauna of North America Vol 28 Classic Reprint written by Alpheus Spring Packard and published by Forgotten Books. This book was released on 2018-03-13 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from On the Origin of the Subterranean Fauna of North America, Vol. 28 I cannot specify very exactly as to when the pigmentation of the skin begins, but, in any case, it is very early and often earlier that the first beginning of the eyes can be discovered. The latter occurs toward the end of the twelfth week, at which time a thin, light gray line, which still appears overgrown, may be perceived, forming a half circle open underneath. Then while this line subsequently becomes clearer and darker and its ends grow further under and towards each other, there also takes place simultaneously a progression of the pigment larger towards the middle point, and the circle finally seems closed and filled up to the narrow slit mentioned above, which proceeds from the lower circumference and penetrates to the middle of the eye. (p. 570, But the most striking discovery bearing on this subject is that of the condition of the eyes in the embryo and young com pared with the adult of the blind goby of San Diego. 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 On the Origin of the Subterranean Fauna of North America written by Alpheus Spring Packard and published by Palala Press. This book was released on 2016-05-24 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book On the Origin of the Subterranean Fauna of North America written by Alpheus Spring Packard and published by . This book was released on 1894 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution and Origin of Life in America Classic Reprint written by Robert Francis Scharff and published by Forgotten Books. This book was released on 2017-12-15 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Distribution and Origin of Life in America This volume is the outcome of the second series of Swiney Lectures on Geology which I delivered at the Victoria and Albert Museum in London in 1908. The subject chosen for these lectures was the Geological History of the American Fauna. Instead of publishing the lectures, like the previous ones on the European Fauna, with little alteration, I decided to amplify and rewrite them completely. In doing so I was enabled to bring out more clearly certain points in the geological history of the American animals which seemed to me of general interest. 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 On the Origin of Species Illustrated written by Charles Darwin and published by . This book was released on 2020-12-04 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life),[3] published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology.[4] Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection. It presented a body of evidence that the diversity of life arose by common descent through a branching pattern of evolution. Darwin included evidence that he had gathered on the Beagle expedition in the 1830s and his subsequent findings from research, correspondence, and experimentation.
Download or read book Caterpillars of Eastern North America written by David L. Wagner and published by Princeton University Press. This book was released on 2005-07-25 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Many caterpillars are illustrated here for the first time. Dozens of new foodplant records are presented and erroneous records are corrected. The book provides considerable information on the distribution, biology, and taxonomy of caterpillars beyond that available in other popular works on Eastern butterflies and moths. The introductory chapter covers caterpillar structure, life cycles, rearing, natural enemies, photography, and conservation. The section titled "Caterpillar Projects" will be of special interest to educators." "Given the dearth of accessible guides on the identification and natural history of caterpillars, Caterpillars of Eastern North America is a must for entomologists and museum curators, forest managers, conservation biologists and others who seek a compact, easy-to-use guide to the caterpillars of this vast region."--BOOK JACKET.
Download or read book Encyclopedia of Caves and Karst Science written by John Gunn and published by Routledge. This book was released on 2004-08-02 with total page 1971 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Caves and Karst Science contains 350 alphabetically arranged entries. The topics include cave and karst geoscience, cave archaeology and human use of caves, art in caves, hydrology and groundwater, cave and karst history, and conservation and management. The Encyclopedia is extensively illustrated with photographs, maps, diagrams, and tables, and has thematic content lists and a comprehensive index to facilitate searching and browsing.
Download or read book Field Guide to Mushrooms of Western North America written by R. Michael Davis and published by Univ of California Press. This book was released on 2012 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amateur mushroom collectors and mycologists alike will find over 300 species of the region's most distinctive and ecologically important mushrooms profiled in this comprehensive field guide.
Download or read book Shamanic Worlds written by Marjorie Mandelstam Balzer and published by M.E. Sharpe. This book was released on 1997-01-27 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work introduces traditional Siberian shamans as the poets, therapists and even leaders of their communities. Among the special features of this collection are transcriptions of shamanic exhortations and a study of shamanic tales and rituals.
Download or read book Forthcoming Books written by Rose Arny and published by . This book was released on 2000 with total page 1546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Democracy and Education written by John Dewey and published by Createspace Independent Publishing Platform. This book was released on 1916 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: . Renewal of Life by Transmission. The most notable distinction between living and inanimate things is that the former maintain themselves by renewal. A stone when struck resists. If its resistance is greater than the force of the blow struck, it remains outwardly unchanged. Otherwise, it is shattered into smaller bits. Never does the stone attempt to react in such a way that it may maintain itself against the blow, much less so as to render the blow a contributing factor to its own continued action. While the living thing may easily be crushed by superior force, it none the less tries to turn the energies which act upon it into means of its own further existence. If it cannot do so, it does not just split into smaller pieces (at least in the higher forms of life), but loses its identity as a living thing. As long as it endures, it struggles to use surrounding energies in its own behalf. It uses light, air, moisture, and the material of soil. To say that it uses them is to say that it turns them into means of its own conservation. As long as it is growing, the energy it expends in thus turning the environment to account is more than compensated for by the return it gets: it grows. Understanding the word "control" in this sense, it may be said that a living being is one that subjugates and controls for its own continued activity the energies that would otherwise use it up. Life is a self-renewing process through action upon the environment.
Download or read book The Origin of Species by Means of Natural Selection written by Charles Darwin and published by . This book was released on 1882 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Book of North American Mammals written by H. E. Anthony and published by . This book was released on 2013-10 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a new release of the original 1928 edition.
Download or read book The IUCN Invertebrate Red Data Book written by Sue Wells and published by . This book was released on 1983 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biology of Caves and Other Subterranean Habitats written by David C. Culver and published by Oxford University Press. This book was released on 2019-04-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this widely cited textbook continues to provide a concise but comprehensive introduction to cave and subterranean biology, describing this fascinating habitat and its biodiversity. It covers a range of biological processes including ecosystem function, evolution and adaptation, community ecology, biogeography, and conservation. The authors draw on a global range of examples and case studies from both caves and non-cave subterranean habitats. One of the barriers to the study of subterranean biology has been the extraordinarily large number of specialized terms used by researchers; the authors explain these terms clearly and minimize the number that they use. This new edition retains the same 10 chapter structure of the original, but the content has been thoroughly revised and updated throughout to reflect the huge increase in publications concerning subterranean biology over the last decade.
Download or read book Dams and Public Safety written by Robert B. Jansen and published by . This book was released on 1980 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Black Jacobins written by C.L.R. James and published by Vintage. This book was released on 2023-08-22 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: A powerful and impassioned historical account of the largest successful revolt by enslaved people in history: the Haitian Revolution of 1791–1803 “One of the seminal texts about the history of slavery and abolition.... Provocative and empowering.” —The New York Times Book Review The Black Jacobins, by Trinidadian historian C. L. R. James, was the first major analysis of the uprising that began in the wake of the storming of the Bastille in France and became the model for liberation movements from Africa to Cuba. It is the story of the French colony of San Domingo, a place where the brutality of plantation owners toward enslaved people was horrifyingly severe. And it is the story of a charismatic and barely literate enslaved person named Toussaint L’Ouverture, who successfully led the Black people of San Domingo against successive invasions by overwhelming French, Spanish, and English forces—and in the process helped form the first independent post-colonial nation in the Caribbean. With a new introduction (2023) by Professor David Scott.
