Quarterly Journal of Microscopical Science, Vol. 5 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, Vol. 5 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780267798513
Total Pages : 348 pages
Book Rating : 4.7/5 (985 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, Vol. 5 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, Vol. 5 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2018-02-04 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, Vol. 5 Metamorphoses of man and the lower animals, by A. De Quatrefages, translated by Dr. H. Lawson, 37, 151. 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.

Quarterly Journal of Microscopical Science, 1858, Vol. 6 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1858, Vol. 6 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780266590279
Total Pages : 428 pages
Book Rating : 4.5/5 (92 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1858, Vol. 6 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, 1858, Vol. 6 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2017-10-22 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1858, Vol. 6 Note. - Sinoe this paper was written, Mr. Bunk, at one of the meetings in the last session, directed the attention d the Society to a peculiar fibrous, starchy material surrounding the ova. (see vol. V, Trans.) This was composed of solid cylin (h'icalfilamentswhichonanalysiswere found tooonsistofa rather unusual animal secretion, of which starch was a prin cipal constituent. 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.

Quarterly Journal of Microscopical Science, 1861, Vol. 1 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1861, Vol. 1 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780267137800
Total Pages : 502 pages
Book Rating : 4.1/5 (378 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1861, Vol. 1 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, 1861, Vol. 1 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2018-01-29 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1861, Vol. 1 I will only here remark, on the propagation of the Dia tomaceae, that although it has not been shown that they form gonidia, yet I have reason to believe that gonidia, in the form of still or resting spores, are the sources from which the new crop originates on the beach each successive spring. This opinion I have formed from the following facts. First, amongst the myriads of specimens of marine Diatomaceae I have examined in the living state, I have never observed the process of conjugation. Secondly, I have, as a general rule, found the same species luxuriating in the same circum scribed locality (extending, in many cases, over only a few square yards) which yielded it in the previous summer. The presence of a particular form, year after year, in the same spot, would therefore appear to be due to the propagating cause, remaining buried in the sand during the winter, through the course of which not a diatom is to be found. Were the crop of each succeeding spring due to the subdivision of a single frustule, or of a few, accidently left by the tides, the same locality would prod, uce in all probability, widely different forms each returning season. 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.

Quarterly Journal of Microscopical Science, Vol. 6 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, Vol. 6 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9781528153393
Total Pages : 318 pages
Book Rating : 4.1/5 (533 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, Vol. 6 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, Vol. 6 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2017-09-13 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, Vol. 6 In September last, being engaged in an inquiry into the process of inflammation in the web of the frog's foot, I was desirous of ascertaining more precisely the structure of the minute vessels, with a view to settling a disputed point regarding their contractility. 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.

Quarterly Journal of Microscopical Science, 1866, Vol. 6 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1866, Vol. 6 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780265543085
Total Pages : 472 pages
Book Rating : 4.5/5 (43 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1866, Vol. 6 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, 1866, Vol. 6 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2017-10-21 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1866, Vol. 6 An amusing and not uninstructive asserted exception among our indigenous Exogens was lately brought to my notice by a friend. He took a fragment from a plant in his collecting box, put it under the microscope, and told me to look and declare fairly what I saw. Plainly many small raphides. I then learned that the plant was a Dodder and much to my surprise, as I had never found raphides in our plants of this genus. Accordingly some flowers and bits of its stem were carefully examined, and with much interest, when no raphides could be detected. The plant was at last given to me, when, in reply to my question as to the part in which he had shown them, he pointed to what he called the scales. And these turned out to be nothing more than small withered leaves, probably of Sherardia; certainly forming no part of the Dodder, and as surely belonging to a species Of the raphis bearing order Galiaceae! 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.

Quarterly Journal of Microscopical Science, 1915, Vol. 60 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1915, Vol. 60 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9781396708381
Total Pages : 702 pages
Book Rating : 4.7/5 (83 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1915, Vol. 60 (Classic Reprint) by : Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1915, Vol. 60 (Classic Reprint) written by Ray Lankester and published by Forgotten Books. This book was released on 2018-10-09 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1915, Vol. 60 The operculum is generally elongate or unguiform, and so small that it is useless for closing the mouth of the shell when the animal has withdrawn itself inside. The shells are covered with yellowish periostracum, which in some species is only a thin, smooth, transparent, but tough coating. In others, as in C. Tulip a, the periostracum is exceedingly thick and of a dark-brown colour. It is rough, furrowed longitudinally, and of a leather-like texture, and has tufts or outgrowths disposed in even rows along its surface. When dry, this thick periostracum becomes very brittle and peels OR the shell. 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.

Quarterly Journal of Microscopical Science, 1854, Vol. 2

Download Quarterly Journal of Microscopical Science, 1854, Vol. 2 PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780666075512
Total Pages : 462 pages
Book Rating : 4.0/5 (755 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1854, Vol. 2 by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, 1854, Vol. 2 written by Edwin Lankester and published by Forgotten Books. This book was released on 2018-02-21 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1854, Vol. 2: With Illustrations on Wood and Stone In addition to those I have described there are very many other forms already familiar to observers of the Diatomea, and doubtless some new forms which 1 have overlooked. I am well aware that the present is a most imperfect sketch of a highly interesting gathering, containing, as will be shown by the following summary, no less than 55 species, of which 20 are certainly new, and in addition 4 forms of Sponge spicula. 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.

Quarterly Journal of Microscopical Science, 1916, Vol. 61 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1916, Vol. 61 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780484260381
Total Pages : 620 pages
Book Rating : 4.2/5 (63 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1916, Vol. 61 (Classic Reprint) by : Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1916, Vol. 61 (Classic Reprint) written by Ray Lankester and published by Forgotten Books. This book was released on 2017-12-20 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1916, Vol. 61 The present research is now finished, and we have seen that the results obtained contradict the proposition put forward in my earlier paper upon this. Organism. I have carefully checked the measurements that led me to put forward this proposition, and have found them to be accurate; but the new evidence before us shows that it cannot be universal. In the circumstances, another negative proposi tion seems to have been established concerning the Spindle. We have found that it is not a figure formed entirely by the action of forces at its poles; we have found that its length at the conclusion of the metaphase is not proportional to the volume of the chromatin; and we have now found that the length at this stage is not proportional to the volume of the cell. We must, however, remember that these negative propositions have been established for individual cases, and are therefore generalisations only in that their antitheses cannot be put forward as being invariably valid. 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.

Quarterly Journal of Microscopical Science, Vol. 21 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, Vol. 21 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780483768857
Total Pages : 666 pages
Book Rating : 4.7/5 (688 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, Vol. 21 (Classic Reprint) by : E. Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, Vol. 21 (Classic Reprint) written by E. Ray Lankester and published by Forgotten Books. This book was released on 2018-01-23 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, Vol. 21 The zooecia are about 0045 inch long by 002 in width, which is tolerably uniform from top to bottom. The outer border, as in most species of Bugula, is hollowed on the ex ternal border and towards the lower end in most of the zooecia, a sort of step is thrown out (pl. I, fig. Upon which is articulated the avicularium. The inner border is evenly rounded, and the upper and inner angle is completely rounded off, whilst the external is produced and crowned with a short, pointed, spinous process. 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.

Quarterly Journal of Microscopical Science, 1921, Vol. 65 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1921, Vol. 65 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780332809076
Total Pages : 792 pages
Book Rating : 4.8/5 (9 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1921, Vol. 65 (Classic Reprint) by : Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1921, Vol. 65 (Classic Reprint) written by Ray Lankester and published by Forgotten Books. This book was released on 2018-02-11 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1921, Vol. 65 We have now to inquire to what extent they are present in other phases and this with Special reference to the assertion of B o n n e V i e and V ej d 0 V s k y that at the telophase one part. Of the chromosome axis is cast out into the new karyoplasm, whilst another persists as a Spirally coiled thread which forms the rudiment of the new chromosome. 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.

Quarterly Journal of Microscopical Science, 1871, Vol. 11 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1871, Vol. 11 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780366536801
Total Pages : 484 pages
Book Rating : 4.5/5 (368 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1871, Vol. 11 (Classic Reprint) by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, 1871, Vol. 11 (Classic Reprint) written by Edwin Lankester and published by Forgotten Books. This book was released on 2018-05-04 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1871, Vol. 11 The same instrument also furnishes a means, in many cases, of applying a correction to Objectives unfurnished with a screw-collar adjustment. Lastly, some researches in the effect of the immersion system, and its further improvement. 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.

Quarterly Journal of Microscopical Science, 1878, Vol. 18 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1878, Vol. 18 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780656234714
Total Pages : 560 pages
Book Rating : 4.2/5 (347 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1878, Vol. 18 (Classic Reprint) by : E. Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1878, Vol. 18 (Classic Reprint) written by E. Ray Lankester and published by Forgotten Books. This book was released on 2018-02-10 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1878, Vol. 18 Again, the tooth of the hake is furnished with a living pulp, richly vascular, the vessels of which enter through the hinge so as not to he put upon the stretch by the movement of the tooth, while the hinged tooth of the pike is a compara tively pulpless structure. 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.

Quarterly Journal of Microscopical Science, 1911, Vol. 56 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1911, Vol. 56 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780266560920
Total Pages : 862 pages
Book Rating : 4.5/5 (69 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1911, Vol. 56 (Classic Reprint) by : Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1911, Vol. 56 (Classic Reprint) written by Ray Lankester and published by Forgotten Books. This book was released on 2017-10-21 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1911, Vol. 56 To Miss V. Sheffield I am indebted for the original of fig. 63. To my friend Dr. F. P. Sandes, Sydney, I am indebted for kind help in the revision of certain parts of the manuscript. 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.

Quarterly Journal of Microscopical Science, 1892, Vol. 33 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1892, Vol. 33 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780267976089
Total Pages : 636 pages
Book Rating : 4.9/5 (76 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1892, Vol. 33 (Classic Reprint) by :

Download or read book Quarterly Journal of Microscopical Science, 1892, Vol. 33 (Classic Reprint) written by and published by Forgotten Books. This book was released on 2018-02-06 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1892, Vol. 33 I have not deemed it necessary to give references for facts to be found in every text-book, though I have verified as far as possible every statement from the original authorities. In all other cases I have cited my authority in a foot-note. The following is a list of the text-books and papers of general interest to which I may refer the reader. 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.

Quarterly Journal of Microscopical Science, Vol. 8

Download Quarterly Journal of Microscopical Science, Vol. 8 PDF Online Free

Author :
Publisher :
ISBN 13 : 9781332306732
Total Pages : 346 pages
Book Rating : 4.3/5 (67 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, Vol. 8 by : Edwin Lankester

Download or read book Quarterly Journal of Microscopical Science, Vol. 8 written by Edwin Lankester and published by . This book was released on 2015-08-05 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, Vol. 8: With Illustrations on Wood and Stone Starch, from its physiological importance, remarkable structural peculiarities, and general diffusion through the vegetable kingdom, has been a favourite subject of investigation with physiologists and microscopists. However, not-withstanding the attention which has been devoted to its structure and development, it is acknowledged by the greatest physiologists to be known but little of. (See Mr. Busk's paper on "Starch Granules," in the number of the 'Quarterly Journal of Microscopical Science' for April, 1853.) There are, doubtless, intrinsic difficulties attending the investigation of this substance, but these have been very much augmented by the principle on which the examination has been conducted, namely, the cellular hypothesis. If this hypothesis had been in itself correct, and admissible as a basis of explanation of the facts connected with the structure and mode of formation of the starch granule, it ought, considering the amount of talent and ingenuity which have been employed in its application to these inquiries, to have thrown more light upon these much disputed, and as yet entirely unsettled questions. After this apology for thus differing from the high and almost universally credited authorities of the present day, I shall proceed to explain on a new principle - one strictly mechanical in its immediate operation - "the principle of molecular coalescence," - those points connected with the structure and development of starch granules, by which physiologists and botanists have been so long puzzled. In this paper the same train of reasoning will be employed, and the same experimental data adduced, as in my last paper, that on the "Structure and Mode of Formation of the Dental Tissues," as also in that on "Shell Structures;" and hence, though treating of a very different class of organized structures, this is still but an extension of my former researches. 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.

Quarterly Journal of Microscopical Science, 1897, Vol. 39 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1897, Vol. 39 (Classic Reprint) PDF Online Free

Author :
Publisher : Forgotten Books
ISBN 13 : 9780267737222
Total Pages : 598 pages
Book Rating : 4.7/5 (372 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1897, Vol. 39 (Classic Reprint) by : E. Ray Lankester

Download or read book Quarterly Journal of Microscopical Science, 1897, Vol. 39 (Classic Reprint) written by E. Ray Lankester and published by Forgotten Books. This book was released on 2018-02-04 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1897, Vol. 39 The fact that the tint of the worm is due to contained blood, and not to any pigment in the skin, is readily recognised by the unaided eye when the alternating processes of eversion and retraction of the proboscis or introvert is watched. So long as the introvert is at rest within the body the thorax is coloured; when eversion takes place the tint becomes quite faint (pl. 1, fig. - in fact, frequently the thorax becomes white. The blood in the thorax is contained in greatly dilated vessels, which block up and obliterate nearly the whole of the coelom (fig. The introvert is a hollow sac traversed by thin bundles of retractor muscles, the cavity of the sac being con tinuous with the dilated vessels, so that on eversion nearly the whole of the blood in the thorax is driven into the introvert this flow of blood is, of course, the cause of the eversion, - and the thorax is more or less completely deprived of its colour. The fact that the abdomen is not tinted by the blood to any great degree is due to the small size of the blood-vessels in this region. 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.

Quarterly Journal of Microscopical Science, 1859, Vol. 7 (Classic Reprint)

Download Quarterly Journal of Microscopical Science, 1859, Vol. 7 (Classic Reprint) PDF Online Free

Author :
Publisher :
ISBN 13 : 9781330511046
Total Pages : 314 pages
Book Rating : 4.5/5 (11 download)

DOWNLOAD NOW!


Book Synopsis Quarterly Journal of Microscopical Science, 1859, Vol. 7 (Classic Reprint) by :

Download or read book Quarterly Journal of Microscopical Science, 1859, Vol. 7 (Classic Reprint) written by and published by . This book was released on 2015-06-30 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Quarterly Journal of Microscopical Science, 1859, Vol. 7 During a recent voyage from India the success attending the use of certain appliances contrived by me for capturing such marine objects as came in our way, induces me to offer the subjoined account of them to the public. I may mention that, although familiar with the ordinary form of towing net and sounding apparatus, it struck me that much more might be done by resorting to some simple form of casting net, than is possible v.here the chapter of accidents is relied on for bringing within the jaws of the towing net the objects required, and by constructing some more portable sounding apparatus, which would at the same time prove effective at moderate depths, and bring up a much larger quantity of material than is attainable under the ordinary sounding lead, or the more complicated and cumbrous contrivance of Lieutenant Maury and others. I would further premise that whoever desires to make a collection of marine floating; molluses, tuniearies, ascidians, and the like, and also, the minuter organisms which exist in all latitudes in the open ocean, to a greater or lesser extent, will be grievously disappointed if he imagines that the trailing net used astern of a ship will suffice for the purpose. For, to be at all successful, constant and unremitting watchfulness is, in the first place, essential; and what is equally important, a fitting place of observation at the stern of the vessel, with ten or twelve feet of the water bend. In my own case, the quarter gallery of a 1500-ton merchantman afforded the best of all look-out ports; and from it I was enabled to use the casting net about to be described with ease and certainty. In the clear blue water of the open sea it is astonishing how rapidly the eye accustoms itself to detect creatures of the minutest size; and how readily it learns to distinguish, even in the small patches of calm water between each wave when a considerable sea is running, any object that may chance to be swimming near the surface. Nor is this confined to the portion of sea immediately below the observer, but it can be done at a distance of several yards. 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.