The Journal Of Experimental Zoology 1918 1919 Vol 27 Classic Reprint

Author : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9781333754112
Total Pages : 554 pages
Book Rating : 4.16/5 ( download)

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Download or read book The Journal of Experimental Zoology, Vol. 27 written by Ross G. Harrison and published by Forgotten Books. This book was released on 2016-09-27 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, Vol. 27: 1918-1919 While the sex ratios for the inbred litters of the eighth to the twenty-fifth generations varied considerably, the variation was much less after the twelfth generation than before (table A part of this variation was doubtless phenotypic, Since seasonal changes in temperature seem to alter the sex ratio in the rat (king and Stotsenburg, and probably also other agencies, such as the age of the mother (king, '16 a), have a similar effect. As all of the sex ratios were relatively high, however, the devia tions from the norm cannot be ascribed either to environment or to chance, so they must have been due, in part at least, to the manner in which the breeding animals were selected. 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 : 9780267472048
Total Pages : 560 pages
Book Rating : 4.48/5 ( download)

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Download or read book The Journal of Experimental Zoölogy, 1918-1919, Vol. 27 (Classic Reprint) written by Wistar Institute Of Anatomy And Biology and published by Forgotten Books. This book was released on 2018-02 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoölogy, 1918-1919, Vol. 27 Showing, by generation groups, the sex ratios in the inbred and in the half-inbred letters of the A series (male line) 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 : Ross Granville Harrison
Publisher : Forgotten Books
ISBN 13 : 9781391597775
Total Pages : 596 pages
Book Rating : 4.7X/5 ( download)

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Download or read book The Journal of Experimental Zoology, 1916, Vol. 21 (Classic Reprint) written by Ross Granville Harrison and published by Forgotten Books. This book was released on 2018-10-03 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1916, Vol. 21 The previous studies on the influence Of the nervous system upon regeneration have given very divergent results which can hardly be reconciled even when the fact that widely separated groups Of animals were used as the material for experimentation is taken into consideration. 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 : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9780267973750
Total Pages : 508 pages
Book Rating : 4.56/5 ( download)

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Download or read book The Journal of Experimental Zoology, 1919, Vol. 28 (Classic Reprint) written by Ross G. Harrison and published by Forgotten Books. This book was released on 2019-01-16 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1919, Vol. 28 Fig 1 The nitrogen cycle (from Bayliss). The accessory lines and circles in are my additions based on evidence in this paper. 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 : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9780267625369
Total Pages : 616 pages
Book Rating : 4.67/5 ( download)

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Download or read book The Journal of Experimental Zoology, 1918, Vol. 24 (Classic Reprint) written by Ross G. Harrison and published by Forgotten Books. This book was released on 2018-02-02 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1918, Vol. 24 No attempt to review or abstract from the literature the facts relating to dedifferentiation in metazoa will be made. This has been done in an excellent summary and review by Schultz Schultz formulated the observations on metazoa in terms of the hypothesis that all phenomena of form regulation are somehow related to and a result of the reversal of differentiation or de differentiation. In other words regeneration is a result of the differentiation of dedifferentiated cells (see also Child. 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 : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9780267977109
Total Pages : 522 pages
Book Rating : 4.07/5 ( download)

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Download or read book The Journal of Experimental Zoology, 1921, Vol. 33 (Classic Reprint) written by Ross G. Harrison and published by Forgotten Books. This book was released on 2018-02-06 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1921, Vol. 33 The following-experiments were carried out at the University of Chicago during the years 1917 to 1919. I am deeply indebted to Professor Lillie for his invaluable suggestions and criticisms during the course of the work and for his generosity in Supplying me with numerous materials used in the experiments. I also wish to express my thanks to Dr. L. H. Hyman for revising 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.

Author : William K. Brooks
Publisher : Forgotten Books
ISBN 13 : 9780484870955
Total Pages : 638 pages
Book Rating : 4.55/5 ( download)

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Download or read book The Journal of Experimental Zoölogy, Vol. 1 written by William K. Brooks and published by Forgotten Books. This book was released on 2017-12-26 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, Vol. 1: The Journal of Experimental Zoology, Baltimore The egg of Dentalium, like that of Cerebratulus, possesses certain features by means of which the axis may be determined in the living egg from the moment of its release from the ovary. The egg is more or less deeply pigmented, perfectly opaque, and of a color that varies in diflerent individuals from light olivaceous to reddish brown or almost brick red. When first set free the egg is somewhat irregular, but quickly becomes more rounded. It is then seen to be very considerably flattened, so as often to be almost biscuit-shaped, one side being always more flattened than the other, and often more or less irregular in contour. Viewed by reflected light the central region of each of the flat tened sides is seen to be occupied by a very distinct, though vaguely bounded, white area, nearly or quite free from pigment (fig. 1) these areas, as shown by the subsequent development, correspond with the two poles of the egg, and the more flattened side, which. 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 : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9781334421419
Total Pages : 580 pages
Book Rating : 4.12/5 ( download)

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Download or read book The Journal of Experimental Zoölogy, 1915, Vol. 19 (Classic Reprint) written by Ross G. Harrison and published by Forgotten Books. This book was released on 2016-11-26 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1915, Vol. 19 The summary for the data on the sex chromosome is given in table 18, similar to table 13 for the second chromosome. Total of females tested shows 17 cases of decrease and exactly the same number of increase, so that we may safely conclude that there is no change here from first to second broods. 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 : William E. Castle
Publisher :
ISBN 13 : 9780332928029
Total Pages : 578 pages
Book Rating : 4.20/5 ( download)

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Download or read book The Journal of Experimental Zoology, 1912, Vol. 12 (Classic Reprint) written by William E. Castle and published by . This book was released on 2018-02-13 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Ross G. Harrison
Publisher : Forgotten Books
ISBN 13 : 9780267907434
Total Pages : 532 pages
Book Rating : 4.35/5 ( download)

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Download or read book The Journal of Experimental Zoölogy, 1919, Vol. 29 (Classic Reprint) written by Ross G. Harrison and published by Forgotten Books. This book was released on 2018-02-06 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Journal of Experimental Zoology, 1919, Vol. 29 A layer Of paraffin blackened with carbon was put into a Syracuse Watch-glass and in it were made six grooves, each sufficiently wide to admit an embryo lying ventral side up. After the thyroid gland was removed the embryo was left in position for about an hour or until five other operations had been performed, the first then being removed to make room for the seventh. By that time the wound had sufficiently healed to permit handling with a pipette. Asepsis was found to be unneccessary. The operations were performed under a binocular microscope. A transverse incision was made with fine scissors through the ectoderm posterior to the oral plate, the flap Of ectoderm covering the thyroid anlage was pulled caudally, the mesenchyma pushed laterally or removed, and the exposed anlage Of the thyroid was removed together with that portion Of the ventral wall of the pharynx surrounding its proximal margin. The thyroid being Opaque is readily distinguished from the translucent mesenchyma. Care must be taken to avoid injury to the pericardium and heart. Usually the wound appeared to be healed in two or three hours. After the Operation (one to two hours) the salt solution was gradually diluted with tap-water. It was found that the em bryos were harmed by being left too long in the saline. Many sylvatica larvae were kept together in the same aquarium, but the Amblystoma larvae were isolated to prevent their eating one another's gills. 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.