Excerpt from Classification Systems Used in the Library: Photograph Classification; Book Classification<br><br>Notes on mounting will be found in the pamphlet referred to above (p. All mounting for this collection has been done with entire satisfaction by the Rose Bindery of Boston, Mass. Dark mounts, known as stone gray and steel gray, have been used in prefer ence to the light gray, as they harmonize better with the tones of the photographs and are less easily soiled. For some of the larger carbon prints, brown mounts have been chosen. I t is of the greatest impor tance that the mounting should be well done inorder to prevent warp ing, and that the mounts should be light in weight, thin, and flexible, yet tough.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>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.