Book Description

Excerpt from The Breeding Birds of Pennsylvania: Thesis for the Degree of Master of Science in Biology, 1913 The only lake of importance is Lake Erie, forming the northwest boundary for about fifty miles. On the east - ern border, the Delaware River flows south and empties into the Delaware Bay, being joined by the Schuylkill below Philadelphia and at Easton by the Lehigh; each tributary is about one hundred miles in length. Farther inland the Susquehanna, the largest river in the state, enters Pennsylvania from New York and, flowing southerly, crosses the entire state, dividing it into two unequal parts. Its principal tributaries are the West Branch and luniata from the west and the Swatara and Conestoga from the east. The Ohio, which is formed by the union of the Alleghany from the north and the Monongahela from the south, drains the western part of the state, having about fifty miles of its course in Pennsylvania. The Alleghany extends to the north for three hundred miles, while the Monongahela stretches away for two hundred miles. 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.