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Книга по требованию: A Treatise on the British Freshwater Algae (Classic Reprint)

Товар № 11262557
Вес: 0.63 кг.
Год издания: 2015
Страниц: 398 Переплет: мягкая обложка
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Excerpt from A Treatise on the British Freshwater Algae

The object of the present volume is to give the student a concise account of the structure, habits and life-histories of Freshwater Algae, and also to enable him to place within the prescribed limits of a genus any Alga he may find in the fresh waters of the British Islands.

Although it may seem incongruous to treat of freshwater Algae apart from marine ones, there are many excuses for the production of a special treatise on the freshwater forms. Few genera of Algae, and still fewer species, exist both in salt and fresh water, and the vast majority of marine Algae are very different in nature from those inhabiting fresh water.

The need for a book of this kind is very great, owing to the rapid strides made in the investigation of this class of plants during the last twenty years. To identify even many of the commonest of freshwater Algae one has at present to be fully conversant with most of the recent phycological literature, and I have endeavoured in this volume to give a general account of those facts concerning the British species which will be of most assistance to a diligent student.

Many facts and suggestions concerning the life-histories, development, and relationships of freshwater Algae are here brought forward for the first time, and with few exceptions the figures are original, pains having been taken to state as far as possible the localities from which the specimens were collected. The figures are careful and accurate drawings to scale, and they are in no way diagrammatic. A few stages in the life-histories of various Algae, and certain figures showing structural peculiarities, have been copied from the original drawings of other authors, but in each case this has been specially mentioned.

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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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