Excerpt from The Journal of the Franklin Institute, Vol. 91: Devoted to Science and the Mechanic Arts; January-June, 1871 San Bernardo, with less than one-third of the weight on drivers, started a train of 559 gross tons, and one brake screwed down, on a grade of 1 in 400, with 118. Pounds of steam. 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.