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Journal Of Morphology 1895 Vol 11 Classic Reprint
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Book Synopsis Journal of Morphology, 1895, Vol. 11 (Classic Reprint) by : C. O. Whitman
Download or read book Journal of Morphology, 1895, Vol. 11 (Classic Reprint) written by C. O. Whitman and published by Forgotten Books. This book was released on 2018-09-23 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1895, Vol. 11 In the following paper it is the writer's Object to describe the early development of Gar-pike and Sturgeon, and by ex amination Of these forms side by side to permit more definite comparisons as to the mode of development Of Ganoids. 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.
Book Synopsis Journal of Morphology, 1900, Vol. 16 (Classic Reprint) by : C. O. Whitman
Download or read book Journal of Morphology, 1900, Vol. 16 (Classic Reprint) written by C. O. Whitman and published by Forgotten Books. This book was released on 2018-09-24 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1900, Vol. 16 IN 1888 I began a detailed study of the anatomy and development of Limulus, for the purpose of determining whether such a study would justify the conclusion that Limulus and other arachnids are closely related to ancestral vertebrates. That they are so related seemed probable in view of certain resemblances between the mode of development of the brain and eyes of L'imulus and scorpion and those of vertebrates. 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.
Book Synopsis Journal of Morphology, Vol. 10 by : C. O. Whitman
Download or read book Journal of Morphology, Vol. 10 written by C. O. Whitman and published by Forgotten Books. This book was released on 2016-09-02 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, Vol. 10: January, 1895 The work recorded in the following pages was begun in the summer of 1891 at the Wood's H011 Marine Biological Labora tory, at the suggestion Of Professor C. O. Whitman. It has been pursued since, subject to more or less interruption, at Clark University and the University of Chicago. In each laboratory I profited by the instruction and advice of Professor Whitman. It gives me great pleasure to acknowledge in this place my deep indebtedness to him. 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.
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9780656125135 Total Pages :536 pages Book Rating :4.1/5 (251 download)
Book Synopsis Journal of Morphology, 1897, Vol. 12 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book Journal of Morphology, 1897, Vol. 12 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-02-08 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1897, Vol. 12 Fig. 1. Section of a degenerating egg from fig. 3. Calkins's Fig. 5 reduced ovary of All. Foe. Abbe camera. One-half. 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.
Book Synopsis Journal of Morphology, 1903, Vol. 18 (Classic Reprint) by : C. O. Whitman
Download or read book Journal of Morphology, 1903, Vol. 18 (Classic Reprint) written by C. O. Whitman and published by Forgotten Books. This book was released on 2016-11-26 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1903, Vol. 18 The small size of the animal makes it available for study alive under compression, and most Of the parts have been examined in this way. Compressed specimens have been killed and fixed, preferably by means of saturated aqueous solution of corrosive. Then hardened in the same uid and stained and mounted whole, and preparations made in this way supplement the live animal. The excretory system in its finer tubes can only be seen in the living specimen. Material was also hardened in various preser vatives for sectioning: Hermann's, Flemming's and Perenyi' fluids were used, also Mayer's picro-nitric, and saturated aqueous corrosive sublimate solution. For general histological purposes I found that the corrosive hardening was the best, followed by iron-haematoxylin stain. I also tried using methylene blue infra vitam. This demonstrated the muscular system beautifully but has not as yet given me satisfaction with the nervous system. 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."
Book Synopsis Journal of Morphology, 1894, Vol. 9 (Classic Reprint) by : C. O. Whitman
Download or read book Journal of Morphology, 1894, Vol. 9 (Classic Reprint) written by C. O. Whitman and published by Forgotten Books. This book was released on 2016-11-21 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1894, Vol. 9 The expedition was under the immediate direction of Dr. E. A. Andrews, and to him I am grateful for numberless opportunities throughout all the time I was at the station. The Islands of Bimini - north and south, respectively are Situated on the western edge of the Bahama Bank, and lie opposite the southern end of Florida. Owing to the absence of a regular line of boats, they are not very accessible at present. We went first to the southern end of Florida via Tampa Bay, and chartered at Key West a schooner to take ourselves and the laboratory outfit to our destination. This proved expensive, and consumed much time. A more expedi tious way, and with more comfort, is by steamer to Nassau, New Providence Bahamas, from New York. Small boats fre quently carry passengers from Nassau to Bimini, though at no stated times. These details are given, since, as I shall attempt to Show in a moment, Bimini proved a very exceptional locality for the marine biologist. The Island - for usually North Bimini is meant - Was selected on account of its proximity to the Gulf Stream. Between the western edge of the Bahama bank and the eastern shore of Florida, a distance of no more than 45 miles, the Gulf Stream is confined. Passing around the southern end of Florida it enters this channel and ows northward with a maximum rapidity of 5% miles an hour. Standing on the beach of Bimini the deep blue water of the Stream is seen. Here it comes to within half a mile of the bank, and in calm weather one may row or sail to the Stream in less than half an hour. It was anticipated that the surface collecting would be excellent, and so it proved. Unfortunately, we did not have very much of the calm weather prevailing during June and July, but when a calm day arrived the fauna was both rich and varied. 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."
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9780483038080 Total Pages :472 pages Book Rating :4.0/5 (38 download)
Book Synopsis Journal of Morphology, 1887, Vol. 1 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book Journal of Morphology, 1887, Vol. 1 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-01-13 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1887, Vol. 1 Our scientific publications are miscellanies, and such they are destined to remain. No one of them can make any preten sion to fulfilling the functions of a morphological journal. Nowhere in this entire country is there a single efficient serial publication offering to extend its privileges to gists in general, without regard to local restrictions. The result is that valuable papers have been shelved for years; some have been published with illustrations of an inferior quality; and not a few have been brought to the light through the aid of foreign journal's. Much, then, as we owe to our scientific societies for what they have done and are still doing for the biological sciences, and earnestly as we may desire to sustain and strengthen their resources, we recognize needs which such organizations have never undertaken to supply. 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.
Book Synopsis Journal of Morphology, Vol. 33 by : J. S. Kingsley
Download or read book Journal of Morphology, Vol. 33 written by J. S. Kingsley and published by Forgotten Books. This book was released on 2016-11-27 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, Vol. 33: December, 1919 March, 1920 The generalization was made many years ago that the germ cells of Hydrozoa always arose from the ectoderm, while in Scyphozoa it was the entoderm which gave rise to germ cells. So far as my observations go, the latter statement is confirmed, but the former is not correct. The genera and species of Hydrozoa which have been investigated are sufficient in number to show that neither the ectoderm nor the entoderm may be considered as the characteristic place of germ-cell origin; on the contrary, these cells may arise sometimes from one layer and sometimes from the other, even in the same species. 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.
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9780267980451 Total Pages :742 pages Book Rating :4.9/5 (84 download)
Book Synopsis Journal of Morphology, 1893, Vol. 8 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book Journal of Morphology, 1893, Vol. 8 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-02-07 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1893, Vol. 8 My German co-workers in the field of insect development will probably regard my treatment of the literature as rather perfunctory; but Prof. Graber, Dr. Heider and others have given from time to time such complete resumes of past and current literature that I feel justified in departing from the general custom. If I have failed to give credit where it is due, I beg that this may be regarded as a fault of omission and not as a fault of commission. 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.
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9780267866663 Total Pages :438 pages Book Rating :4.8/5 (666 download)
Book Synopsis The Journal of Morphology, 1887, Vol. 1 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book The Journal of Morphology, 1887, Vol. 1 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-02-05 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Morphology, 1887, Vol. 1 It is unnecessary to expatiate on the advantages offered by such a medium of publication. They have long been acknowl edged, appreciated, and enjoyed by those who have occupied themselves with the biological sciences in other countries. Germany, France, England, Austria, Holland, Belgium, Italy, Sweden, Norway, and Switzerland have their morphological journals; and the number supported in each country may be taken as an index of its productivity in morphological research. We have not hitherto followed the example of other nations in this particular; but we venture to say that the time has come when at least one morphological journal should and can be creditably maintained. Our confidence is based on the fact that we now have several flourishing morphological laboratories established in this country; on the hearty assurances of support given by those who represent the principal centres of research in the United States and Canada; and on the character and number of the contributions ofi'ered for the first volume. 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.
Book Synopsis Journal of Morphology, 1917, Vol. 29 (Classic Reprint) by : J. S. Kingsley
Download or read book Journal of Morphology, 1917, Vol. 29 (Classic Reprint) written by J. S. Kingsley and published by Forgotten Books. This book was released on 2017-12-16 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1917, Vol. 29 Several genera, both of scorpions and of Theraphosid spiders from the East Indies, have been recently examined, but there is nothing further to add to the description which has already been published of the coxal glands of certain American, Euro pean and African genera. It may be recalled that the coxal gland of the scorpions lies in segments V and VI with an outlet at the base of the posterior surface of appendage V. 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.
Book Synopsis Journal of Morphology, 1892, Vol. 6 (Classic Reprint) by : Wistar Institute of Anatomy and Biology
Download or read book Journal of Morphology, 1892, Vol. 6 (Classic Reprint) written by Wistar Institute of Anatomy and Biology and published by . This book was released on 2015-07-01 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1892, Vol. 6 Feeling the need of a "genugende Grundlage" for the comparative study of the vertebrate ear, in my endeavors to understand the problems of vertebrate cephalogenesis, I have sought for, and have, I believe, at last found, the basis from which the characteristic structures of the internal ear take their origin, and the law according to which this development takes place throughout the vertebrate group. The study of the morphology of the internal ear of vertebrates has naturally made much more progress than the study of its phylogeny. In fact, until the publication of Beard's paper on the branchial sense organs, we had no sure basis for homologizing the ear with other sense organs of the vertebrate body. Hence, the internal ear has always been looked upon as a Ding an sich even by those investigators who were constantly endeavoring to gain a clearer insight into its phylogenesis. In 1883 J. Beard arrived at the conclusion that the vertebrate auditory organ was only a modified portion of the system of superficial sense organs, for which he proposed the name branchial sense organs. Beard arranged the sense organs of the vertebrate head according to their mode of development and their relations to the cranial nerves. He found that the nose and the ear sense organs were related to the surface of the body and the central nervous system through the mediation of the cranial nerves, in much the same way as the sense organs of the superficial system, which he called the branchial sense organs. He did not go further than to state that these two pairs of higher sense organs were derived from branchial sense organs. We shall see further on how far Beard was from a conception of the true nature of the auditory organs. On this occasion, I shall confine myself to a consideration of the auditory organ alone, leaving the nasal organ for a separate paper. In the paper cited above. Beard says, p. 143: "The auditory organ is, like the segmental sense organs, really a modified portion of the epiblast. Very early in development it becomes shut off in a sac from the epidermis, a condition which only arises later in the segmental sense organs." 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."
Book Synopsis Journal of Morphology, 1915, Vol. 26 (Classic Reprint) by : J. S. Kingsley
Download or read book Journal of Morphology, 1915, Vol. 26 (Classic Reprint) written by J. S. Kingsley and published by . This book was released on 2018-02-13 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9780483690820 Total Pages :690 pages Book Rating :4.6/5 (98 download)
Book Synopsis Journal of Morphology, 1889, Vol. 2 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book Journal of Morphology, 1889, Vol. 2 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-01-23 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1889, Vol. 2 The present paper contains a description of the anatomy Of the taste organs of a single species of Chiroptera. It is highly probable that further study of these organs in other species of this interesting group of animals will reveal important varia tions, respecting both position and structural characters, from the results embraced in this short memoir. It will be of interest first to notice briefly the form and gen eral appearance of the tongue of this mammal. 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.
Book Synopsis Journal of Morphology, 1911, Vol. 22 (Classic Reprint) by : J. S. Kingsley
Download or read book Journal of Morphology, 1911, Vol. 22 (Classic Reprint) written by J. S. Kingsley and published by Forgotten Books. This book was released on 2017-05-26 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1911, Vol. 22 A committee, consisting of Frank R. Lillie, Edwin G. Conklin and Thomas H. Morgan, was appointed to receive contributions of articles from his former students and his associates of the Marine Biological Laboratory. It was decided that the numbers for the year 1911 should constitute a 'whitman Volume.' Professor Whitman died in 1910 before the first number was issued and the volume becomes a memorial to one who had a wide influence in the elevation of biological science. As Whitman's ideals were broader than mere morphology, so the volume in the scope of its contents overlaps that field on all sides. The articles which were accepted by the committee were so numerous and extensive that not all of them could be published during the present year, although the volume is far larger than usual; consequently some of them will appear, with proper acknowledgment, in the next volume of the Journal of Morphology. 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.
Book Synopsis Journal of Morphology, Vol. 23 by : J. S. Kingsley
Download or read book Journal of Morphology, Vol. 23 written by J. S. Kingsley and published by . This book was released on 2015-06-29 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, Vol. 23: 1912 1. The study of heredity in embryos offers in one respect a wider field than that in adults inasmuch as heterogeneous hybrids rarely reach the adult stage. Eight years ago I found a method by which the eggs of the sea-urchin can be fertilized by the sperm of starfish, ophiurians and holothurians. The larvae are purely maternal, namely plutei. The results were confirmed by Godlewski for the fertilization of the egg of the sea-urchin by the sperm of the crinoid. It is well known that if we cross two homogeneous forms, e.g., two forms of sea-urchins, the paternal influence can be clearly seen in the pluteus stage. Since I have never published the figures of my experiments on heterogeneous hybridization, I may supplement my former statements with a few drawings. Figs.1 to 6 are camera drawings of plutei of Strongylocentrotus purpuratus produced by artificial parthenogenesis. The plutei are, of course, in every detail identical with the plutei obtained if these eggs be fertilized with sperm of their own species. Figs. 7 to 9 are drawings of five days old plutei of Strongylocentrotus purpuratus and Strongylocentrotus franciscanus. They differ from the pure breeds of S. purpuratus in several characters of the skeleton which exist in the pluteus of franciscanus but are absent from purpuratus, namely the greater roughness of the skeleton, the presence of cross bars and the greater length of the arms. In figs. 10 to 13 are shown the five days old plutei of the egg of S. purpuratus fertilized with the sperm of the starfish (Asterias). 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.
Author :Wistar Institute Of Anatomy And Biology Publisher :Forgotten Books ISBN 13 :9781527965058 Total Pages :590 pages Book Rating :4.9/5 (65 download)
Book Synopsis Journal of Morphology, 1891, Vol. 5 (Classic Reprint) by : Wistar Institute Of Anatomy And Biology
Download or read book Journal of Morphology, 1891, Vol. 5 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2017-12 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Journal of Morphology, 1891, Vol. 5 Although the theory of evolution is now accepted as an established fact by almost all naturalists, this general agree ment does not extend beyond the point of believing that the present organic world has arisen by descent from simpler forms. The application of the theory to concrete cases is beset with grave difficulties, and gives rise to the most divergent views. The uninitiated reader who takes up a monograph upon some animal group may well be surprised to see the minuteness and accuracy with which the genealogy of the series is set forth, and the relationships of the various genera and species mar shalled in orderly array. But another treatise upon the same animals will contain an equally complete family tree, which contradicts the first in almost every particular. To some extent this almost hopeless divergence is inherent in the very nature of the problem, it being largely a question of the value of evi dence and of the balance of probabilities, as to which men must be expected to difler; but there is another potent cause of the discrepancy. When the contradictory phylogenetic schemes are analyzed, it is frequently found to be the case that the discus sion rests upon certain postulates and assumptions, sometimes. 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.
