Excerpt from The Cumulative Book Index, Vol. 11: Author, Tilte, and Subject Catalog in One Alphabet of Books Published During 1908 Educational and technical books. Sold at a limited discount and commonly known as net books have an asterisk before the price. Books subject to the rules of the American Publishers' Association are marked by a double asterisk when the bookseller is required to maintain the list price; by a dagger (t). When the maximum discount is fixed at 20 and 10 per cent, as is allowable in the case of fiction. 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.