Excerpt from Standards and Specifications in the Wood-Using Industries: Nationally Recognized Standards and Specifications for Wood and Manufactures Thereof, Including Paper and Paper Products No little confusion has been created by the lack of uniformity in the grading rules formulated by the various regional and species associations of the lumber industry and by the difference in interpretation of these rules by the lumber manufacturers, Wholesalers, and retailers. 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.