Author: Alpheus S. Packard

Publisher: Forgotten Books

Published: 2015-06-25

Total Pages: 755

ISBN-13: 9781330386293

DOWNLOAD EBOOK

Excerpt from Text-Book of Entomology: Including the Anatomy, Physiology, Embryology and Metamorphoses of Insects; For Use in Agricultural and Technical Schools and Colleges as Well as by the Working Entomologist In preparing this book the author had in mind the wants both of the student and the teacher. For the student's use the more difficult portions, particularly that on the embryology, may be omitted. The work has grown in part out of the writer's experience in class work. In instructing small classes in the anatomy and metamorphoses of insects, it was strongly felt that the mere dissection and drawing of a few types, comprising some of our common insects, were by no means sufficient for broad, thorough work. Plainly enough the laboratory work is all important, being rigidly disciplinary in its methods, and affording the foundation for any farther work. But to this should be added frequent explanations or formal lectures, and the student should be required to do collateral reading in some general work on structural and developmental entomology. With this aim in view, the present work has been prepared. It might be said in explanation of the plan of this book, that the students having previously taken a lecture course in the zoology of the invertebrates, were first instructed in the facts and conclusions bearing on the relations of insects to other Arthropoda, and more especially the anatomy of Peripatus, of the Myriopoda, and of Scolopendrella. Then the structure of Campodea, Machilis, and Lepisma was described, after which a few types of winged insects, beginning with the locust and ending with the bee, were drawn and dissected; the nymph of the locust, and the larva and pupa of a moth and of a wasp and bee being drawn and examined. Had time permitted, an outline of the embryology and of the internal changes in flies during their metamorphoses would have been added. 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 Text-Book of Entomology written by Alpheus S. Packard and published by Forgotten Books. This book was released on 2015-06-25 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Text-Book of Entomology: Including the Anatomy, Physiology, Embryology and Metamorphoses of Insects; For Use in Agricultural and Technical Schools and Colleges as Well as by the Working Entomologist In preparing this book the author had in mind the wants both of the student and the teacher. For the student's use the more difficult portions, particularly that on the embryology, may be omitted. The work has grown in part out of the writer's experience in class work. In instructing small classes in the anatomy and metamorphoses of insects, it was strongly felt that the mere dissection and drawing of a few types, comprising some of our common insects, were by no means sufficient for broad, thorough work. Plainly enough the laboratory work is all important, being rigidly disciplinary in its methods, and affording the foundation for any farther work. But to this should be added frequent explanations or formal lectures, and the student should be required to do collateral reading in some general work on structural and developmental entomology. With this aim in view, the present work has been prepared. It might be said in explanation of the plan of this book, that the students having previously taken a lecture course in the zoology of the invertebrates, were first instructed in the facts and conclusions bearing on the relations of insects to other Arthropoda, and more especially the anatomy of Peripatus, of the Myriopoda, and of Scolopendrella. Then the structure of Campodea, Machilis, and Lepisma was described, after which a few types of winged insects, beginning with the locust and ending with the bee, were drawn and dissected; the nymph of the locust, and the larva and pupa of a moth and of a wasp and bee being drawn and examined. Had time permitted, an outline of the embryology and of the internal changes in flies during their metamorphoses would have been added. 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.