Excerpt from A Course in Invertebrate Zo logy: A Guide to the Dissection and Comparative Study of Invertebrate Animals Many teachers prefer to begin a laboratory course in general zoology with a frog or a fish, as convenient and relatively simple forms to use in introducing a class to laboratory methods of study, and this is one of the reasons for the expansion of this work by the introduction of these dissections into it. While the comparative feature runs through the dissections in this course, each is complete in itself and does not depend upon any others. The teacher is thus enabled to give his class such dissections as he wishes and is not compelled to adopt the entire series to have his course complete. He can also reverse the order of the studies, if it suits his purpose better, beginning with the Protozoa and working upward to the higher groups. 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.