Manual Of The Mosses Of Western Pennsylvania Classic Reprint

Author : A. J. Grout
Publisher :
ISBN 13 : 9781332336647
Total Pages : 228 pages
Book Rating : 4.3/5 (366 download)

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Download or read book Mosses With a Hand-Lens written by A. J. Grout and published by . This book was released on 2015-08-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Mosses With a Hand-Lens: A Non-Technical Handbook of the More Common and More Easily Recognized Mosses of the Northeastern United States The preparation of the First Edition was an experiment, as there was some doubt as to the demand for such a book and considerable uncertainty as to how many people would be able to use it successfully. The sales of the First Edition have proved conclusively the demand for a book of this kind, and it has also been proved that the hand-lens can be successfully used to determine a much larger number of mosses than was included in the First Edition. This is shown by the readiness with which persons of no special scientific training have identified the common mosses by its use. By the use of slides prepared as for the compound microscope, and the very best lenses such as are advertised in the last pages of this book many characters which were little or not at all used in the First Edition can be utilized in determining difficult species. Such characters are the gross structure of the peristome, the characters of the costa, and the margins of the leaves, position of the reproductive organs, and in many cases the general outline of the cells. The hand-lens can never equal the compound microscope for making out these finer details of structure, but the compound microscope is beyond the reach of many who would gladly study the mosses if it can be done with a hand-lens. No characters have been utilized which the author has not been able to make out with his lens, but it may easily be true that the beginner may not be able to see as much at first. The author believes that the limit of utility of the hand-lens has been reached in this edition, so far as the mosses are concerned at least. The section on the Hepatics is less complete owing to the limitations of the author. 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.