Arachnids rarely come to mind when one discusses arthropod neurobiology. In fact much more is now known and written about the nervous systems of insects and crustaceans. Several arguments have led us to conclude, however, that the time has come to document impor tant aspects of the neurobiology of spiders, scorpions, and their kin, as well. Studies of arachnid neurobiology have made considerable progress since the last comprehensive treatment by Bullock and Horridge in their monumental monograph on invertebrate nervous systems pub lished in 1965. This is especially true for research performed in the last decade. Several problems related to the structure and function of arachnid nervous and sensory systems have now been studied in con siderable depth but have so far not been given adequate space under one cover. A particular incentive to produce this book has been the impor tance attributed to comparative approaches in neurobiology. Neglect ing a large taxonomic group such as the arachnids - which comprises some 60,000 species living a wide range of different lives - would mean ignoring an enormous potential source of knowledge. In writing the chapters of this book we have striven to present some of the unique features of the arachnids. But the result of our efforts is not just meant to contribute to an understanding of the particularities of the arach nids."

This Is A New Release Of The Original 1873 Edition.

This is a new release of the original 1944 edition.

The child who knows the letters of the alphabet is ready to learn the sound of each letter. Letter Sounds to Help Parents Help Their Children, created by 18-year teaching veteran Peggy L. Forster, is a work-with book that is filled with colorful pictures of animals, toys, food, things you wear, things you use, things that grow, and other things that are familiar to preschoolers. There are questions that will focus attention on the letter sound being learned and answers to those questions at the bottom of the page (to help make the parent look good).

The lessons are visual and verbal. No writing is involved, but the involvement of a parent, grandparent, or older sibling is essential. That's why it's called a work-with book, not a workbook.

For the child who is learning English as a second language (ESL), the picture pages can add immeasurably to his or her vocabulary. At least 250 words are needed to identify pictures and complete the exercises.

This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!