Download or read book A Contribution to the Physiology of the Fresh Water Sponges Spongillidae written by Herman Van Trigt and published by Forgotten Books. This book was released on 2017-10-22 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Contribution to the Physiology of the Fresh-Water Sponges (Spongillidae): Proefschrift Ter Verkrijging Van Den Graad Van Doctor in De Plant-En Dierkunde Aan De Rijks-Universiteit Te Leiden, Op Gezag Van Den Rector-Magnificus, Dr. P. C. T. Van Der Hoeven, Hoogleeraar in De Faculteit Der Geneeskunde If I venture to treat here at large, with the help of my own research, the problem of the chlorophyll, of the current of water, of the ingestion and the defecation in fresh-water sponges, it is not, because there is but little known about these problems. On the contrary; investigators have already studied them since decennaries. We even possess a great number of papers on these subjects; some of which are considered in literature as standard researches giving decisive results. Nevertheless, I think it neces sary to treat those problems once more; in the first place, be cause during my investigations, which I have continued as exact as possible for at least 4 years, several of these results obtained and generally acknowledged some of them being of the greatest interest proved to me absolutely inexact; and in the second place, because I will be able to confirm by new and better proofs some of the results, which have not yet been generally acknow ledged in consequence of a less complete argumentation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book A Contribution to the physiology of the fresh water sponges Spongillidae proefschrift door Herman Van Trigt written by Herman Van Trigt and published by . This book was released on 1919 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Contribution to the Physiology of the Fresh water Sponges Spongillidae written by Herman van Trigt and published by . This book was released on 1919 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Contribution to the Physiology of the Fresh Water Sponges Spongillidae written by Herman van Trigt and published by . This book was released on 1919 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Contribution to the Physiology of the Fresh water Sponges Spongillidae written by Herman van Trigt and published by . This book was released on 1919 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Contribution to the Physiology of the Fresh water Sponges Spongillidae written by H. van Trigt and published by . This book was released on 1914 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A contribution to the physiology of the fresh water sponges Spongillidae written by Herman van Trigt and published by . This book was released on 1919 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION TO THE PHYSIOLOGY OF THE FRESH WATER SPONGES SPONGILLIDAE written by HERMAN VAN. TRIGT and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION TO THE BIOLOGY OF THE FRESHWATER SPONGES SPONGILLIDAE written by MARCUS CALVIN OLD and published by . This book was released on 1930 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fresh Water Sponges of Pennsylvania Adjacent States Notulae Naturae of The Acad of Natural Sciences of Phila No 228 written by and published by Academy of Natural Sciences. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aspects of Sponge Biology written by Frederick Harrison and published by Elsevier. This book was released on 2012-12-02 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aspects of Sponge Biology is the result of a symposium about sponge biology held in Albany, New York in May 1975. The symposium not only presents investigations, but also problem areas in the field of sponge biology. This book therefore shows that sponges are a very challenging and untouched subject area for future studies. This book is divided into three major parts, wherein the first part introduces and discusses sponge biology. The introduction and discussion include sponge biology principles, perspectives, and problems. The next two parts discuss cell and development biology, taxonomy, and ecology. Part 2 deals with several topics of the cellular aspect, including an analysis of reproduction in sponge populations and cytochemical studies of connective tissues in sponges. This part also looks into the cytological abnormalities in various normal and transformed cell lines. Part 3 describes the different types of sponge in their various habitats. Sponge feeding mechanisms, ecological factors controlling sponge distribution, and zoogeography of Brazilian marine Demospongiae are also discussed in this part. This book will be of important value to biology students and teachers. Specialists including zoologists, ecologists, comparative physiologists, and biologists will also benefit from this book.

Download or read book COMPREHENSIVE REVISION OF A WORLDWIDE COLLECTION OF FRESHWATER SPONGES PORIFERA SPONGILLIDAE written by J. T. PENNEY and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology of the Freshwater Sponge written by Thomas M. Frost and published by . This book was released on 1978 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Taxonomy and Distribution of the Fresh water Sponges Spongillidae of Michigan written by Marcus C. Old and published by . This book was released on 1930 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Taxonomy and Distribution of the Fresh water Sponges spongillidae of Michigan Environmental Selection of the Fresh water Sponges spongillidae of Michigan Contribution to the Biology of Fresh water Sponges spongillidae Observations on the Sisyridae neuroptera Marcus C Old a Dissertation for the Degree of Doctor of Philosophy in the University of Michigan written by Marcus C. Old and published by . This book was released on 1932 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cytology and Physiology of Coordinated Behaviour in the Freshwater Sponge Ephydatia Muelleri written by Glen Ronald Douglas Elliott and published by . This book was released on 2009 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Part 1 Taxonomy and Distribution of the Fresh water Sponges Spongillidae of Michigan written by Marcus Calvin Old and published by . This book was released on 1933 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: