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Author: Publisher: Forgotten Books ISBN: 9780266264668 Category : Science Languages : en Pages : 34
Book Description
Excerpt from Aquatic Plants in Pond Culture It is perhaps superfluous to add that submerged plants bind the bottom soil together, thus acting as a deterrent to turbidity from that source; and that plants doubtless facilitate clarification when the water of a pond has become turbid with surface drainage after a rain or from other external causes of a temporary character. The superintendent of the Tupelo, Mississippi, station, Mr. C. W. Burn ham, cites as an evidence of this the numerous reservoirs or tanks in the West which are devoid of vegetation and in which the water is constantly roiled. It is possible that in some instances the absence of vegetation is due to the constantly roily water, a condition else where referred to; but control tests in aquaria demonstrate that in an aquarium containing Cabomba the water is clarified much more quickly than in one devoid of vegetation. It is believed that if many of the so-called tanks of the Western States now devoid of vege tation could be stocked with water plants, these would not only pre vent turbid water by binding the bottom soil together, but would under certain conditions prove an aid to clarification. 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: Publisher: Forgotten Books ISBN: 9780266264668 Category : Science Languages : en Pages : 34
Book Description
Excerpt from Aquatic Plants in Pond Culture It is perhaps superfluous to add that submerged plants bind the bottom soil together, thus acting as a deterrent to turbidity from that source; and that plants doubtless facilitate clarification when the water of a pond has become turbid with surface drainage after a rain or from other external causes of a temporary character. The superintendent of the Tupelo, Mississippi, station, Mr. C. W. Burn ham, cites as an evidence of this the numerous reservoirs or tanks in the West which are devoid of vegetation and in which the water is constantly roiled. It is possible that in some instances the absence of vegetation is due to the constantly roily water, a condition else where referred to; but control tests in aquaria demonstrate that in an aquarium containing Cabomba the water is clarified much more quickly than in one devoid of vegetation. It is believed that if many of the so-called tanks of the Western States now devoid of vege tation could be stocked with water plants, these would not only pre vent turbid water by binding the bottom soil together, but would under certain conditions prove an aid to clarification. 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: Edmund D. Sturtevant Publisher: Forgotten Books ISBN: 9780484550482 Category : Gardening Languages : en Pages : 40
Book Description
Excerpt from Catalogue of Rare Water Lilies and Other Choice Aquatic Plants: With Directions for Their Culture Our Prices for the bulbous and tuberous varieties are for those in a dormant condition. For plants in an advanced stage of growth, we reserve the right to charge according to size. 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 Tricker Publisher: Forgotten Books ISBN: 9780332753942 Category : Gardening Languages : en Pages : 32
Book Description
Excerpt from Water Lilies, Aquatic Plants, and Fancy Fishes, 1928 The unusually fragrant flowers are borne above the water and are desirable for cutting. As the leaves are small, this variety is much used for tub culture. Certified by the Horticultural Society of New York. 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: John Wheelock Titcomb Publisher: Sagwan Press ISBN: 9781377219738 Category : History Languages : en Pages : 52
Book Description
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.
Author: Raymond Haines Pond Publisher: Forgotten Books ISBN: 9781391026268 Category : Science Languages : en Pages : 54
Book Description
Excerpt from The Biological Relation of Aquatic Plants to the Substratum The observations of hoppe-seyler, then, show that the upper layers of the water of the lake to a depth of 2 meters are practically satu rated with oxygen, not only where larger aquatic plants are growing, but where there are no such plants. These plants can therefore have no practical effect in increasing the oxygen content of the superficial layer Of water. Since his observations show further that in no part of the lake, even at great depths, and in other situations destitute of larger aquatic plants, is there more than a small quantity of uncombined carbon dioxid present, it is clear that the larger plants are not essential for the removal of this gas from the water. It is removed rather as a free gas, by the formation of carbonates. The statement, however, that the larger aquatic plants can not be regarded as essential for the furnishing of oxygen to the animals of a lake or for the removal of carbon dioxid injurious to those animals must be understood as applying only to lakes of considerable size - not to small ponds nor to standing aquaria. 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: Publisher: Forgotten Books ISBN: 9780428919481 Category : Science Languages : en Pages : 20
Book Description
Excerpt from Check-List of Marsh and Aquatic Plants of the United States Such consistency is not found in the various botanical manuals, although Standardized Plant Names does attain that end in the field of horti culture. The names in the present list are recommended for use by all those interested in waterfowl conservation. It should also be useful to botanists and, to some extent, to specialists in fish culture and fur pro duction. All the algae except the Characeae have been excluded because of their minute size and.oomparative unimportance to waterfowl. Because of its s00pe the list does not include the many species characteristic of wooded swamps and peat bogs. 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: Agnes Arber Publisher: Forgotten Books ISBN: 9780365209393 Category : Science Languages : en Pages : 456
Book Description
Excerpt from Water Plants: A Study of Aquatic Angiosperms Aquatic Angiosperms are derived from terrestrial ancestors, and have adopted the water habit at various times subsequent to their first appearance as Flowering Plants. The hydrophytes thus present the great advantage to the student, that they form a group for whose history there is a generally accepted foundation. Throughout the present study I have constantly borne phylogenetic questions in mind, and the first three Parts Of this book may be regarded as a clearing Of the ground for the more theoretic considerations concerning the evolutionary history Of water plants to which the Fourth Part is mainly devoted. In that section Of the book, and sporadically in the earlier chapters, I have set down such Speculations as have been borne in upon me in the course Of a study Of water plants with which I have been occupied more or less continuously for the last ten years. The literature relating to Aquatic Angiosperms has now grown to such formidable proportions that I have felt the necessity Of trying to provide some clue to the labyrinth. With this end in view I have given a bibliography Of the principal sources, which includes a brief indication Of the nature and scope Of each work, with page numbers showing where it is cited in the text. For the convenience Of those seeking informa tion about any particular plant, I have indexed the families and genera named in the titles enumerated, and in the notes regard ing the contents Of each memoir. -i found it impracticable to compile a subject index to the bibliography, but the references under the individual chapters to some extent serve this purpose. 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.
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Author: Edmund D. Sturtevant
Author: William Tricker
Author: John Wheelock Titcomb
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Author: John W. Titcomb
Author: Raymond Haines Pond
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Author: Agnes Arber