Publisher's Synopsis
Excerpt from Bulletin des Seances de la Societe Francaise de Physique: Annee 1907
Cette experience peut etre aisement repetee sans meme se servir d'un Spectroscope. De simples verres jaunes et verts convenable ment choisis suffisent pour cela ils permettent d'agir sur de grandes surfaces et de developper, en quelque sorte, de veritables epreuves photographiques. 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.
