Excerpt from Vitrified Brick Pavements for Country Roads The particles too large to pass the screens, which should not exceed three-sixteenths inch in mesh, are returned to the dry pan, while the Screened material is passed to the mixing machine or pug mill by means Of conveyors. In the pug'mill, water is admixed with the clay to form a stiff mud, which is fed continuously into the brick machine proper. 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.