The Standard Natural History, Vol. 6 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780267627974
Total Pages : 590 pages
Book Rating : 4.6/5 (279 download)

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Book Synopsis The Standard Natural History, Vol. 6 (Classic Reprint) by : John Sterling Kingsley

Download or read book The Standard Natural History, Vol. 6 (Classic Reprint) written by John Sterling Kingsley and published by Forgotten Books. This book was released on 2018-02-02 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Natural History, Vol. 6 To-day the anthropologist calls to his assistance every possible source of informa tion; anatomy, language, history, traditions, myths, customs, habits, intellectual attain ments, all are to be weighed, criticised, and their import studied before one can arrive at a true classification Of the races of mankind, a classification which shall explain all peculiarities of geographical distribution and physical characteristics, and represent the exact relationships and inter-relationships Of each and every variety. Although much has been done in this direction within the past forty years, we are still far from our ideal, and whether such a grouping is within the power of the human mind with the materials at its disposal, we cannot at present say. 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.

The Standard Library of Natural History, Vol. 1 (Classic Reprint)

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ISBN 13 : 9781330529690
Total Pages : 396 pages
Book Rating : 4.5/5 (296 download)

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Book Synopsis The Standard Library of Natural History, Vol. 1 (Classic Reprint) by :

Download or read book The Standard Library of Natural History, Vol. 1 (Classic Reprint) written by and published by . This book was released on 2015-07-01 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Library of Natural History, Vol. 1 The interest now taken in Natural History is wide-spread and intelligent to a degree never known before, and any publication that purports to present the animal world in a new and clearer way is sure of a welcome, and as wide an acceptance as it deserves. Nothing is more essential to the successful presentation of animal life and habits than good pictures. 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.

Natural History, Vol. 6

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ISBN 13 : 9781332224326
Total Pages : 146 pages
Book Rating : 4.2/5 (243 download)

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Book Synopsis Natural History, Vol. 6 by :

Download or read book Natural History, Vol. 6 written by and published by . This book was released on 2015-08-05 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Natural History, Vol. 6: Zoology and Botany The completion of these fifty memoirs, descriptive of the fauna and flora of that part of the Antarctic area which was visited by the Discovery, under the command of Captain Scott, R.N., C.A)., offers a suitable opportunity for saying a few words on the collections that were obtained, and for suggesting some general reflections on the inhabitants of the area that was studied. First of all we have to note the extraordinary differences between the North and the South Polar regions; in the one there is the polar sea, in the other solid land. In the one case, the surfaces of its solid places are dominated by rapacious Carnivores which, ever hungry in such climes, have compelled all defenceless animals to assume the same colour as themselves and the snow on which they live. In the other, the absence of aggressors allows the Penguins to assume the splendid and beautiful colourations which are so well shown in Dr. Wilson's admirable drawings. The Antarctic region, instead of being, as we might imagine, with its inhospitable climate, almost devoid of life, teems with species, of which 227 new forms are described in these volumes. Of some Amphipoda Mr. Jlodo-son writes "It was quite the usual thing to take 10,000 to 30,000 at a haul." And the collection of the 'Discovery' Schizopoda contained one species which was represented by nearly 10, 000 specimens. Students of Professor Ehlers' report on the Polychseta will have only a faint idea of the number of specimens of Harmothoe spinosa brought back by the Expedition. The Alga Lessonia (randiflora was found to have a lamina as much as 24 feet long; on the other hand, M.Cardot noted that most of the species of Mosses showed signs, which he has detailed, of the severity of their struggle for existence. With the exception of some Algae, no freshwater organisms were obtained by the 'Discovery' Expedition. 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.

The Standard Natural History

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Publisher : Forgotten Books
ISBN 13 : 9781330320891
Total Pages : 590 pages
Book Rating : 4.3/5 (28 download)

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Book Synopsis The Standard Natural History by : J. S. Kingsley

Download or read book The Standard Natural History written by J. S. Kingsley and published by Forgotten Books. This book was released on 2015-06-16 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Natural History, Vol. 6 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.

The Standard Library of Natural History, Vol. 2

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Publisher : Forgotten Books
ISBN 13 : 9780484077774
Total Pages : 304 pages
Book Rating : 4.0/5 (777 download)

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Book Synopsis The Standard Library of Natural History, Vol. 2 by : Charles John Cornish

Download or read book The Standard Library of Natural History, Vol. 2 written by Charles John Cornish and published by Forgotten Books. This book was released on 2018-02-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Library of Natural History, Vol. 2: Embracing Living Animals of the World and Living Races of Mankind; Mammals Birds The male sitatunga stands about 3 feet 6 inches at the shoulder, and varies in general colour in different localities from light to dark brown. The adult females are either red with a few. Faint stripes and spots, or light brown, only retaining very faint traces of any stripes or spots. The young are, both in tropical West and Central East Africa, red, striped, and spotted with white; but in South-west Africa dark blackish brown, with spots and stripes of yellowish white. The hoofs are excessively long. And the skin which covers the back of the pastern is hairless, and ofa very thick and horny consistency. The males alone carry horns, which are of the same character as in the inyala, but more spiral and longer, having been known to attain a length of 28 inches in a straight line and 35 inches over the curve. 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.

Natural History, Vol. 3

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Publisher : Forgotten Books
ISBN 13 : 9780656170739
Total Pages : 404 pages
Book Rating : 4.1/5 (77 download)

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Book Synopsis Natural History, Vol. 3 by :

Download or read book Natural History, Vol. 3 written by and published by Forgotten Books. This book was released on 2018-02-09 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Natural History, Vol. 3: Zoology and Botany The Director desires to acknowledge the ability and energy which have been brought to bear on the preparation of the Zoological reports by Mr. Jeffrey Bell. Owing to his care, the reports have been got ready by the various contributors and published within a reasonable time after the return of the 'discovery' from the Antarctic Regions. Neither trouble nor expense has been spared in order to render the illustration and presentation of the Natural History of the Expedition worthy of the generous efforts both of Captain Scott and his fellow - explorers and of those who provided the funds for that enterprise. 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.

The Standard Natural History, Vol. 5

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ISBN 13 : 9781332282722
Total Pages : 628 pages
Book Rating : 4.2/5 (827 download)

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Book Synopsis The Standard Natural History, Vol. 5 by : John Sterling Kingsley

Download or read book The Standard Natural History, Vol. 5 written by John Sterling Kingsley and published by . This book was released on 2015-08-05 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Natural History, Vol. 5: Mammals In the beginning of the third volume of tills series we have a general account of the anatomy and physiology of the branch of Vertebrata; and here, as an introduction to the class of Mammals, we need only to refer very briefly to some of the special diagnostic characters which separate this group from the other divisions of backboned animals. In this account we have intentionally omitted those features which are common to all ertebrates, and all description of physiological phenomena which, as explained in the ordinary school text-books of human physiology, will apply as well to the whole class of mammals as to man. The Mammalia, the highest class of the animal kingdom, is more distinctly marked off from all other groups than are many of the classes considered in the preceding volumes. While there frequently exists a doubt as to the proper boundaries of some of the lower groups, or their relative importance in the scale of perfection, no such hesitancy is felt regarding the limits or the grade of the mammalia. Even within the limits of the class the orders are all well defined, and in most cases their relative rank is pretty well settled. This superiority of the mammalia over all other classes of the animal kingdom does not imply that every organ is more perfect or better adapted to its purpose, or that every individual is really higher; but that when we come to regard the totality of the organization, and the setting apart of portions of the body for some specific purpose, resulting in an increased differention of organs and an increased complexity of the organism, upon which alone the relative rank of animal rests, the higher rank is at once evident. Thus the human eye, far from being the perfect organ described in some works of a teleological tendency, is less perfect than that of the eagle in many respects, and yet no one would think on this account of placing the bird of prey higher than man. Like all vertebrates, the mammals never have more than two pairs of limbs, but with the exception of some of the aquatic forms (whale, etc.), these two pairs are always present, whence the name in frequent use for the class - quadrupeds. The anterior pair of limbs are never absent in the group. Except in a few forms, to be noted below, the body is covered with hair. The mouth is usually armed with teeth. The heart is four-chambered, and the circulation is complete. The blood is warm and contains non-nucleated red corpuscles. The body cavity is divided into two portions by a transverse muscle, the diaphragm, or "midriff," the anterior portion being called the pleural, and the posterior, or abdominal portion, the peritoneal cavity. The young are born alive, and are afterward nourished by milk, secreted by milkglands (mammce), whence the name of the class. 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.

The Standard Natural History, Vol. 1 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780267802852
Total Pages : 514 pages
Book Rating : 4.8/5 (28 download)

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Book Synopsis The Standard Natural History, Vol. 1 (Classic Reprint) by : J. S. Kingsley

Download or read book The Standard Natural History, Vol. 1 (Classic Reprint) written by J. S. Kingsley and published by Forgotten Books. This book was released on 2018-02-04 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Natural History, Vol. 1 In so far as this is a process of growth, accompanied by the assumption of a defi nite form, it might be compared with the growth of a crystal of salt in brine; but, on closer examination, it turns out to be something very different. For the crystal of salt grows by taking to itself the salt contained in the brine, which is added to its exterior; whereas the plant grows by addition to its interior; and there is not a trace of the characteristic compounds of the plant's body, albumen, gluten, starch, or cellulose, or fat, in the soil, or in the water, or in the air. Yet the plant creates nothing, and therefore the matter of the proteids and amy loids and fats which it contains must be supplied to it, and simply manufactured, or combined in new fashions, in the body of the plant. 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.

Natural History, General and Particular, Vol. 6 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9781333847838
Total Pages : 512 pages
Book Rating : 4.8/5 (478 download)

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Book Synopsis Natural History, General and Particular, Vol. 6 (Classic Reprint) by : Georges Louis Leclerc

Download or read book Natural History, General and Particular, Vol. 6 (Classic Reprint) written by Georges Louis Leclerc and published by Forgotten Books. This book was released on 2016-10-05 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Natural History, General and Particular, Vol. 6 Elephas; P/zm'z, 8. Cap. I. Raii fine/if: quad. P. 131. [if/em. 36. Ludo/[515. Ethic}. P. 54. Boztllaye-lc gozzz. P. 2 50. Del/072'; vojage, p. 71. Leo A z'c. P. 336. Cape, 91. 2. J). 98 Bo lzmz'r lag/l. Oqz'ize}, 79. 230. Lin/chottmz. 2 er, p, 55. D1: Ha/e'e'r C/vizza, vol. 224. Engage, t. 138. 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."

NATURAL HIST OF ANIMALS

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Publisher : Forgotten Books
ISBN 13 : 9781333503185
Total Pages : 264 pages
Book Rating : 4.5/5 (31 download)

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Book Synopsis NATURAL HIST OF ANIMALS by : J. R. Ainsworth Davis

Download or read book NATURAL HIST OF ANIMALS written by J. R. Ainsworth Davis and published by Forgotten Books. This book was released on 2016-09-08 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Natural History of Animals, Vol. 6: The Animal Life of the World in Its Various Aspects and Relations At 4 is depicted a Parachuting Reptile, the beautiful little Fly ing-dragon (draco volans) of the Malay region, in which there is a movable fold on either side of the body, supported by the ribs. 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.

The Royal Natural History, Vol. 6 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9781334678899
Total Pages : 322 pages
Book Rating : 4.6/5 (788 download)

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Book Synopsis The Royal Natural History, Vol. 6 (Classic Reprint) by : Richard Lydekker

Download or read book The Royal Natural History, Vol. 6 (Classic Reprint) written by Richard Lydekker and published by Forgotten Books. This book was released on 2016-12-23 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Royal Natural History, Vol. 6 This arrangement Of the organs in question does not, however, exist in all invertebrated animals. In some the nervous system is absent; in others it con sists of two strands, one running along each side of the body, and neither above nor below the alimentary canal. In Others, again, there is no circulatory system, and in others no alimentary canal. There is consequently an extreme divergence in anatomical structure between various kinds of Invertebrates, and zoologists have attempted to express these differences, as explained above, by the referring these various creatures to distinct subkingdoms. 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.

Natural History, General and Particular, Vol. 1 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780656430420
Total Pages : 536 pages
Book Rating : 4.4/5 (34 download)

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Book Synopsis Natural History, General and Particular, Vol. 1 (Classic Reprint) by : Georges Louis Leclerc Buffon

Download or read book Natural History, General and Particular, Vol. 1 (Classic Reprint) written by Georges Louis Leclerc Buffon and published by Forgotten Books. This book was released on 2018-02-12 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Natural History, General and Particular, Vol. 1 They rejefied dubious and fiflitious relations. They added, from obfervation and experiment, many new fails They arranged animals under proper clafl'es and fubdivifions They defcribed with accuracy and precifion They pointed out the importance of the fcience, and recommended the Rudy of it by the folidity and clearnefs of their views, and by the brevity and perfpicuity of their compofitions. This tafie continued fome time, and produced'the works of Reaumur. 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.

A New and Accurate System of Natural History, Vol. 1 of 6 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780267690954
Total Pages : 478 pages
Book Rating : 4.6/5 (99 download)

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Book Synopsis A New and Accurate System of Natural History, Vol. 1 of 6 (Classic Reprint) by : R. Brookes

Download or read book A New and Accurate System of Natural History, Vol. 1 of 6 (Classic Reprint) written by R. Brookes and published by Forgotten Books. This book was released on 2018-02-03 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A New and Accurate System of Natural History, Vol. 1 of 6 The multitude of Nature's produelions however feems at firlt to bewilder the inquirer, rather than excite his attention; the various wonders of the 1771' ma], Vegetable, or jl/iineral world feem to exceed all. Powers of computation, and the fcience appearsbar ren from it's amazing fertility. But a nearer ac quaintance with this fiudy, by giving method to our refearches, points outa fimilitude in many objeets which at firft appeared difi'erent; the mind by de grees rifes to confider the things before it in general lights, till at length it finds nature in almoft every inflance aeting with her ufual fimplicity. 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.

The Standard Natural History, Volume 6

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Author :
Publisher : Palala Press
ISBN 13 : 9781343397699
Total Pages : 604 pages
Book Rating : 4.3/5 (976 download)

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Book Synopsis The Standard Natural History, Volume 6 by : Friedrich von Hellwald

Download or read book The Standard Natural History, Volume 6 written by Friedrich von Hellwald and published by Palala Press. This book was released on 2015-09-21 with total page 604 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.

The New Natural History, Vol. 1 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780267718764
Total Pages : 654 pages
Book Rating : 4.7/5 (187 download)

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Book Synopsis The New Natural History, Vol. 1 (Classic Reprint) by : Richard Lydekker

Download or read book The New Natural History, Vol. 1 (Classic Reprint) written by Richard Lydekker and published by Forgotten Books. This book was released on 2018-02-04 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The New Natural History, Vol. 1 N correspondence and in the course Of my lectures I have been asked a great many times to name some reliable text-book that would serve as a guide in the study of American Zoology, and hitherto, I have been unable to do so. 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.

The Standard Natural History, Vol. 2 (Classic Reprint)

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Publisher : Forgotten Books
ISBN 13 : 9780666856258
Total Pages : 604 pages
Book Rating : 4.8/5 (562 download)

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Book Synopsis The Standard Natural History, Vol. 2 (Classic Reprint) by : J. S. Kingsley

Download or read book The Standard Natural History, Vol. 2 (Classic Reprint) written by J. S. Kingsley and published by Forgotten Books. This book was released on 2018-03-04 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Standard Natural History, Vol. 2 Cuvier, in his great, divisions or branches of the animal kingdom, recognized a group Articulata characterized by having a bilaterally symmetrical body, composed of a series of rings or segments serially arranged. An excellent example of the arrangement of these rings can be seen in the common earth or angleworm. These rings make a hardened external skeleton, which at once forms a framework for the attachment of muscles, and also a protection for the internal organs. Typically, there is found in each segment a portion of each of the more important organs of the body. Just under the dorsal surface is found an elongated dorsal vessel, which represents the heart; the intestine lies in the median line of the body, which it usually traverses from end to end, while the nervous system, consisting of a series of enlargements, called ganglia, connected by nervous cords, extends along the floor of the body. This group of Articulata was still further divided into three classes: Worms, Crustacea, and Insects. This classification was long prevalent, and even at the present time it is found in use in a few text-books, though when naturalists came to study more thoroughly the principles upon which animals should be grouped, and especially upon applying the revelations of embryology, it was seen that the class of Worms contained the most heterogeneous elements, and that while certain members of it were possibly closely related to Crustacea and Insects, the great majority had no such affinity, and that the features uniting them were of not so much importance as many others. Hence, as we have seen in the preceding volume, the group of Articulata has been dismembered and dropped from use, and even the class of worms is far from being a natural one. According to the majority of the naturalists of the present day, the Crustacea and the Insects are together considered as forming a sub-kingdom, Arthropoda but the tendency of scientific thought at the present time is toward the discarding of this group, and toward the belief that the Crustacea and the Insects are generically no more closely related to each other than they are to the worms, and that each should be raised to the dignity of branches. The reasons for such a course are many, but for convenience, in the present work, the prevailing classification will be retained. 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.

The Standard Natural History, Volume 6

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Author :
Publisher : Arkose Press
ISBN 13 : 9781345591545
Total Pages : 606 pages
Book Rating : 4.5/5 (915 download)

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Book Synopsis The Standard Natural History, Volume 6 by : Friedrich Von Hellwald

Download or read book The Standard Natural History, Volume 6 written by Friedrich Von Hellwald and published by Arkose Press. This book was released on 2015-10-28 with total page 606 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.