Excerpt from The Periodic Law So many interesting facts illustrating the periodic variations'of the properties of elements when they are considered in the ascending order of their atomic weights have been brought to light during the last few years, that it was thought some attempt should be made to collect the more important and useful of these into one volume. 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.