Excerpt from Key to the Families of North American Insects: An Introduction to the Classification of Insects More than fifty thousand different species of insects are now known from North America. Their descriptions fill libraries and their final identification requires the knowledge of specialists. Obviously no single volume can provide for their determination. But this host of species is divided into groups of related forms, the families of insects, and it is with their recognition that the present work deals. ...
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Excerpt from Key to the Families of North American Insects: An Introduction to the Classification of Insects More than fifty thousand different species of insects are now known from North America. Their descriptions fill libraries and their final identification requires the knowledge of specialists. Obviously no single volume can provide for their determination. But this host of species is divided into groups of related forms, the families of insects, and it is with their recognition that the present work deals. Identification of the families has been effected by means of analytical keys, which have been arranged as dichotomies. In the first couplet, for example, two contrasting descriptions are given, one of which should agree with the insect to be determined. The number at the end of this description indicates the couplet which should then be studied, and so on until the final name is secured. All of the keys have been arranged in this way, as the writers' experience in the classroom shows that specimens can be most easily and rapidly classified with a key of this type, which also requires much less space for printing. While the dichotomies frequently represent the natural relationships or the lines of phyletic development, no attempt has been made to preserve natural divisions wherever the convenience and practical Opera tion of the keys would have been sacrificed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Key to the Families of North American Insects to cart. $19.83, new condition, Sold by Paperbackshop International rated 5.0 out of 5 stars, ships from Fairford, GLOS, UNITED KINGDOM, published 2023 by LEGARE STREET PR.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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New. Trade paperback (US). Glued binding. 150 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Fine. Sewn binding. Cloth over boards. 150 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
