Excerpt from A Primer of Higher Space (the Fourth Dimension) Memory-haunting phrase, often heard, yet little understood. In this slender volume the author has attempted to explain what is meant by it, and to usher the reader into some of those fascinating halls of thought to which it is the door. Although the exposition is along known and already conventional lines, it is hoped that there is enough new and original matter to justify the book, and enough simplicity of presen tation to justify its title, A Primer of Higher Space. 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.