Insect Galls Of Springfield Massachusetts And Vicinity PDF Download

Excerpt from Insect Galls, Vol. 2: Of Springfield, Massachusetts, and Vicinity Within galls may sometimes be found parasites or inquilines. The former, preyin'g directly upon the gall-maker, causes its death, but not until its growth is nearly or quite complete. The inquilines are merely guests within the gall, profiting by the food supply and by the protection. Aside from the collection of the galls of different localities, and the sub sequent summary Of their distribution, two very interesting questions suggest themselves for investigation. First, are these malformations the result Of chemical or Of mechanical action? Second, Of which Of the American gall-makers is it true that there is alternation of generations? The classification of gall-insects will undoubtedly be somewhat altered when this question is answered. Either line suggests a fascinating series Of observations and experiments for the one undertaking it. 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.