Excerpt from An Index of State Specifications and Standards An Index entry may contain as many as six items of information. The first item given is the title of the specification or standard. Generally, the key words found in the title are sufficient to identify the product or article covered; however, in some instances additional descriptive terms have been added to the title to aid in identifying the contents. Over 400 words, which are meaningless for searching pur poses, do not appear as key words Examples are. 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.