Publisher's Synopsis
Excerpt from Actinom�trie
Cette proportionnalit� n'existe, en r�alit�, que pour les rayons simples, pour les rayons d'une longueur d'onde d�termin�e. Il est permis de dire qu'une lumi�re j aune doit exercer un effet chimique deux fois plus consid�rable et donner deux fois plus de chaleur lorsqu'elle est deux fois plus bril lante mais rien ne nous autorise � supposer. 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.
