Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, Vol. 35 of 65: Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patent Inventions; January 1858 The writer, however, has taken no step in this grave investigation, without due authority to rest upon, and will now produce unquestion able evidence to dispel these erroneous assumptions; admitting at the same time, that these are to a great extent questions of fact, which suit able surveys alone can settle beyond dispute. 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.