Excerpt from Brief Guide to the Commoner Butterflies of the Northern United States and Canada: Being an Introduction to a Knowledge of Their Life-Histories To aid in these determinations, separate keys are appended for each of the three stages, caterpillar, chry salis, and butterfly, by which any insect included in the work may be tracked. There is another advantage in this restriction of the work to the commoner butterflies, for these are better known in the various stages of their lives, and interest in them is thereby greatly enhanced. I should be loath indeed to treat of butterflies as if they were so many mere postage-stamps to be classified and arranged in a cabinet; and if, by adding to the mere descriptions of the different species in their various most obvious stages some of the curious facts concerning their periodicity, their habits of life, and their relations to the world around them, I may spread before the eyes of the young some of the attractions which lie at the Open door of Nature and induce some to wander into the by-ways for more eager personal search, I shall have gained my end. 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.