Excerpt from Four Days at Niagara Falls, in North America AT three o'clock, P. M. I proceeded by rail road to the ferry of the Niagara river, at Black Rock. This road runs under a line of dark compact limestone quarries, which, judging from the fossils I collected in the neighbourhood, must belong to the Silurian group.* The ferry-boat, in which we had to stem the tremendous current of the river, was large enough to convey carriages: the paddles were worked by a horizontal wheel, turned by four horses, forming a horse-tread - wheel. 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.