Excerpt from Tests of a Flat Slab Floor of the Western Newspaper Union Building Acknowledgment of valuable aid received in carrying out the test is made. The portland cement association furnished the labor for preparinglfor the test and for hauling the loading material and loading and unloading the floor. The universal portland cement company assisted in making arrangements and gave assistance on the test. The pig iron used for loading material was lent by the illinois steel company. The freight on the pig iron was borne jointlygby the pennsylvania railroad and the portland cement association. Opportunity to use the building for the purpose of the test was given by the chicago union station company; the test was made at. The suggestion of A. J hammond, Principal Assistant Engineer. The condron company provided an assistant for tracing and checking the transfer of the loading material. 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.