Excerpt from The Butterflies of the Eastern United States and Canada, Vol. 1: With Special Reference to New England It will be thought by many that some justification is needed for the course adopted in subdividing the different groups more minutely than is customary. To such I have only to say that if the characters I have pointed out as pertaining to such groups and their relations to those placed above and below them are not in themselves a justification, then I have none, and no words of mine could or should alter such a fact; if, however, these characteristics represent actual categories, and if at the same time such groupings make clearer the relations which the life his tories and the distribution of the groups bear to their structure, then words are not needed. 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.