Excerpt from Journal of the Elisha Mitchell Scientific Society, Vol. 8: Part First; January-June, 1891 In the Transactions of the American Society of Civil Engineers for April, 1891, the writer published an article entitled Determination of the Stresses in Elastic Systems by the Method of Least Work, in which two new and complete demonstrations of the principle of least work are given, both being founded on the well-known principle of virtual velocities of mechanics applied to framed structures. 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.