Excerpt from Techlogy and Industrial Efficiency The charter of the Massachusetts Institute of Techlogy was signed by Goverr Andrew on the 10th of April, 1861. In the half-century that has elapsed since that date, the Institute has steadily advanced in power and influence. Its educational policy has served as a model for numerous similar institutions in this country and abroad, and its graduates have taken a prominent part in opening up the country, in developing its industries, in conserving the health of its citizens, and generally in adding to the national welfare by the application of scientific methods to the great practical problems of the day. To celebrate the fiftieth anniversary of its founding, a Congress of Techlogy was opened in Boston on the 10th of April, 1911, and at this Congress a series of papers was presented by alumni of the Institute and by members of its faculty. These papers are here collected and reproduced in such abbreviated form as the exigencies of space demand. The work of abbreviation has been entrusted to a board of editors, and, of course, has necessitated liberties being taken with the original form of presentation. In case, however, has any substantial change been consciously made. A paper entitled Thirty Years' Work in Boiler Testing, by George H. Barrus, '74, Consulting Seam Engineer, Boston, has been omitted because it was too long to publish in extenso, and could t be presented satisfactorily in abstract form. An interesting discussion of Some Problems of High Masonry Dams, by John R. Freeman, '76, Consulting Engineer, Providence, R. I., has unfortunately t been reduced to writing in time for publication. 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 techlogy 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.